973
FNUS55 KGJT 311939
FWFGJT
FIRE WEATHER PLANNING FORECAST FOR WRN COLORADO AND ERN UTAH
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
139 PM MDT MON AUG 31 2026
DISCUSSION
WIDESPREAD SHOWERS AND THUNDERSTORMS ARE FORECAST THIS AFTERNOON
AND EVENING. HEAVY RAINFALL IS POSSIBLE WITH STRONGER STORMS, SO
FLASH FLOODING AND DEBRIS FLOWS ARE A CONCERN, ESPECIALLY OVER
NEWER BURN SCARS AND IN AREAS A SUSCEPTIBLE TERRAIN. LIGHTNING AND
STRONG OUTFLOW WINDS ARE CONCERNS AS WELL. MOISTURE DECREASES
TOMORROW, BUT RELATIVE HUMIDITY REMAINS HIGH ENOUGH THAT CRITICAL
FIRE WEATHER CONDITIONS ARE NOT IN THE FORECAST. STRONGER
AFTERNOON WIND GUSTS ARE FORECAST EACH DAY WEDNESDAY THROUGH
FRIDAY. ELEVATED MOISTURE LOOKS TO RETURN BY THE WEEKEND.
...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS
OR THUNDERSTORMS...
..THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL
COZ200-011145-
LITTLE SNAKE FORECAST AREA-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........NEAR 6000 FEET, MOSTLY CLOUDY (70-80%) UNTIL
2400, THEN PARTLY CLOUDY (50-60%). NEAR 8000
FEET, MOSTLY CLOUDY (70-80%). NUMEROUS SHOWERS
AND SCATTERED THUNDERSTORMS UNTIL 2400.
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS
AFTER 2400.
CHC OF LIGHTNING....50 PERCENT.
MIN TEMPERATURE.....47-57 F.
MAX HUMIDITY........84-99% NEAR 6000 FEET
78-93% NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 3 TO 6 MPH.
LOCALIZED GUSTS UP TO 20 MPH IN THE EVENING.
CWR.................70 PERCENT.
15K FT MSL WINDS....SOUTH 15 TO 20 MPH INCREASING TO SOUTHWEST 20
TO 25 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......5500 FT AGL UNTIL 1900. 1500 FT AGL AFTER 2000.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........NEAR 6000 FEET, MOSTLY SUNNY (20-30%). NEAR
8000 FEET, PARTLY CLOUDY (30-40%) UNTIL 1200,
THEN MOSTLY SUNNY (20-30%), ISOLATED SHOWERS
UNTIL 1200.
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....69-79 F NEAR 6000 FEET
58-68 F NEAR 8000 FEET.
MIN HUMIDITY........32-42% NEAR 6000 FEET
42-52% NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 4 TO 8 MPH BECOMING
SOUTHWEST 10 TO 15 MPH IN THE AFTERNOON.
LOCALIZED GUSTS UP TO 30 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 25 MPH.
MIXING HEIGHT.......3500 FT AGL UNTIL 1200, THEN 8000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH UNTIL 1200, THEN 15 TO 20
MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. VERY GOOD AFTER 1200.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50%). ISOLATED THUNDERSTORMS
UNTIL 2400. ISOLATED SHOWERS.
CHC OF LIGHTNING....10 PERCENT.
MIN TEMPERATURE.....48-58 F.
MAX HUMIDITY........68-83%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 25 MPH INCREASING TO 25 TO 35
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......6000 FT AGL UNTIL 2000, THEN 1000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
SMOKE DISPERSAL.....FAIR UNTIL 2100, THEN POOR.
WEDNESDAY
SKY/WEATHER.........NEAR 6000 FEET, MOSTLY SUNNY (20-30%), ISOLATED
SHOWERS AFTER 1200. NEAR 8000 FEET, PARTLY
CLOUDY (30-40%) UNTIL 1200, THEN MOSTLY SUNNY
(20-30%), ISOLATED SHOWERS. ISOLATED
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....70-80 F NEAR 6000 FEET
59-69 F NEAR 8000 FEET.
MIN HUMIDITY........22-32% NEAR 6000 FEET
30-40% NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 4 TO 8 MPH BECOMING
SOUTHWEST 15 TO 20 MPH WITH GUSTS TO 40 MPH IN
THE AFTERNOON.
CWR.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 35 TO 45 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 0900. 11500 FT AGL AFTER
1000.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH UNTIL 1200, THEN SOUTHWEST
20 TO 30 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. EXCELLENT AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 46-56. HIGHS 75-85. SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS
TO 35 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 48-58. HIGHS 77-87. SOUTHWEST WINDS
10 TO 20 MPH WITH GUSTS TO 35 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 50-60. HIGHS 76-86. SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS
TO 30 MPH.
SUNDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 50-60. HIGHS 75-85.
LABOR DAY
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS NEAR 6000 FEET AND SCATTERED SHOWERS AND
THUNDERSTORMS NEAR 8000 FEET. LOWS 49-59. HIGHS 77-87.
COZ201-011145-
ROUTT FORECAST AREA-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70%). SHOWERS AND SCATTERED
THUNDERSTORMS UNTIL 2400, THEN SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS.
CHC OF LIGHTNING....50 PERCENT.
MIN TEMPERATURE.....43-53 F.
MAX HUMIDITY........80-95%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................70 PERCENT.
15K FT MSL WINDS....SOUTH 5 TO 10 MPH INCREASING TO SOUTHWEST 20 TO
25 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......3000 FT AGL UNTIL 2000, THEN 1500 FT AGL.
TRANSPORT WINDS.....SOUTH 5 MPH.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50%). SCATTERED SHOWERS UNTIL
1200, ISOLATED SHOWERS AND THUNDERSTORMS AFTER
1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....63-73 F.
MIN HUMIDITY........33-43%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 25 MPH.
MIXING HEIGHT.......2000 FT AGL UNTIL 1000, THEN 7500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH UNTIL 1200, THEN WEST 15
TO 20 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. VERY GOOD AFTER 1200.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%). ISOLATED SHOWERS AFTER
2400.
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....44-54 F.
MAX HUMIDITY........64-79%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 25 MPH INCREASING TO 25 TO 35
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......6500 FT AGL UNTIL 1900. 500 FT AGL AFTER 2000.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40%) UNTIL 1200, THEN MOSTLY
SUNNY (20-30%). ISOLATED SHOWERS. ISOLATED
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....64-74 F.
MIN HUMIDITY........26-36%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 4 TO 8 MPH BECOMING
SOUTHWEST 15 TO 20 MPH IN THE AFTERNOON.
LOCALIZED GUSTS UP TO 35 MPH.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 30 TO 40 MPH.
MIXING HEIGHT.......500 FT AGL UNTIL 0800. 9500 FT AGL AFTER 0900.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH UNTIL 1200, THEN 20 TO
25 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. EXCELLENT AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 43-53. HIGHS 68-78. SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS
TO 35 MPH.
FRIDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
44-54. HIGHS 70-80. SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO
30 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 46-56. HIGHS 70-80. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 47-57. HIGHS 69-79.
LABOR DAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 46-56. HIGHS 70-80.
COZ202-011145-
WHITE RIVER FORECAST AREA-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80%) UNTIL 2400, THEN PARTLY
CLOUDY (50-60%). NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS UNTIL 2400. SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS AFTER 2400.
CHC OF LIGHTNING....50 PERCENT.
MIN TEMPERATURE.....47-57 F.
MAX HUMIDITY........85-100% NEAR 6000 FEET
74-89% NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................70 PERCENT.
15K FT MSL WINDS....SOUTHWEST 10 TO 15 MPH INCREASING TO 20 TO 25
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........NEAR 6000 FEET, MOSTLY SUNNY (20-30%) UNTIL
1200, THEN PARTLY CLOUDY (30-40%). NEAR 8000
FEET, PARTLY CLOUDY (30-40%) UNTIL 1200, THEN
MOSTLY SUNNY (20-30%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....70-80 F NEAR 6000 FEET
61-71 F NEAR 8000 FEET.
MIN HUMIDITY........35-45%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 30 MPH.
MIXING HEIGHT.......1500 FT AGL UNTIL 1000, THEN 8000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50%). NEAR 6000 FEET,
ISOLATED THUNDERSTORMS UNTIL 2400. ISOLATED
SHOWERS. NEAR 8000 FEET, ISOLATED SHOWERS AND
THUNDERSTORMS UNTIL 2400.
CHC OF LIGHTNING....10 PERCENT.
MIN TEMPERATURE.....48-58 F.
MAX HUMIDITY........65-80% NEAR 6000 FEET
56-71% NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 25 MPH INCREASING TO 25 TO 35
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......6500 FT AGL UNTIL 1900. 1000 FT AGL AFTER 2000.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
SMOKE DISPERSAL.....FAIR UNTIL 2100, THEN POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%). NEAR 6000 FEET, ISOLATED
SHOWERS AND THUNDERSTORMS AFTER 1200. NEAR 8000
FEET, ISOLATED SHOWERS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....68-78 F NEAR 6000 FEET
61-71 F NEAR 8000 FEET.
MIN HUMIDITY........23-33% NEAR 6000 FEET
30-40% NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 4 TO 8 MPH BECOMING
SOUTHWEST 15 TO 20 MPH IN THE AFTERNOON.
LOCALIZED GUSTS UP TO 35 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 35 TO 45 MPH.
MIXING HEIGHT.......1500 FT AGL UNTIL 0900, THEN 11000 FT AGL.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH UNTIL 1200, THEN SOUTHWEST
20 TO 30 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. EXCELLENT AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
CLEAR. ISOLATED SHOWERS NEAR 6000 FEET. LOWS 49-59.
HIGHS 76-86. SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 35 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 78-88. SOUTHWEST WINDS
10 TO 20 MPH WITH GUSTS TO 35 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 51-61. HIGHS 77-87. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 50-60. HIGHS 75-85.
LABOR DAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 50-60. HIGHS 77-87.
COZ203-011145-
LOWER COLORADO RIVER-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80%) UNTIL 2400, THEN PARTLY
CLOUDY (50-60%). NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS UNTIL 2400, THEN SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS.
CHC OF LIGHTNING....50 PERCENT.
MIN TEMPERATURE.....50-60 F.
MAX HUMIDITY........71-86%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................70 PERCENT.
15K FT MSL WINDS....SOUTHWEST 10 TO 15 MPH INCREASING TO 15 TO 20
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......1500 FT AGL.
TRANSPORT WINDS.....SOUTH 5 MPH.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%). ISOLATED SHOWERS.
ISOLATED THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....72-82 F NEAR 6000 FEET
62-72 F NEAR 8000 FEET.
MIN HUMIDITY........30-40%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................20 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 25 MPH.
MIXING HEIGHT.......3000 FT AGL UNTIL 1200, THEN 7000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 MPH UNTIL 1200, THEN SOUTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%). ISOLATED THUNDERSTORMS
UNTIL 2400. ISOLATED SHOWERS.
CHC OF LIGHTNING....10 PERCENT.
MIN TEMPERATURE.....53-63 F NEAR 6000 FEET
46-56 F NEAR 8000 FEET.
MAX HUMIDITY........55-70%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 25 MPH INCREASING TO 20 TO 30
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......6000 FT AGL UNTIL 1900. 1000 FT AGL AFTER 2000.
TRANSPORT WINDS.....SOUTH 5 MPH UNTIL 2400, THEN SOUTHEAST.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%). ISOLATED SHOWERS.
ISOLATED THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....73-83 F NEAR 6000 FEET
63-73 F NEAR 8000 FEET.
MIN HUMIDITY........24-34%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 4 TO 8 MPH BECOMING
SOUTHWEST 10 TO 15 MPH WITH GUSTS TO 35 MPH IN
THE AFTERNOON.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 30 TO 40 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 0900. 10500 FT AGL AFTER
1000.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH UNTIL 1200, THEN SOUTHWEST 15
TO 20 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. EXCELLENT AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 53-63. HIGHS 78-88. SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS
TO 30 MPH.
FRIDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
54-64. HIGHS 79-89. WINDS LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 55-65. HIGHS 77-87. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 55-65. HIGHS 77-87.
LABOR DAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 56-66. HIGHS 80-90.
COZ205-011145-
COLORADO RIVER HEADWATERS-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70%). NUMEROUS SHOWERS AND
SCATTERED THUNDERSTORMS UNTIL 2400, THEN
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.
CHC OF LIGHTNING....50 PERCENT.
MIN TEMPERATURE.....44-54 F.
MAX HUMIDITY........78-93%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................60 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 25 MPH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 MPH.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40%). ISOLATED THUNDERSTORMS
UNTIL 1200. ISOLATED SHOWERS. SCATTERED
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....69-79 F.
MIN HUMIDITY........29-39%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY WINDS 4 TO 8 MPH. LOCALIZED
GUSTS UP TO 25 MPH IN THE AFTERNOON.
CWR.................20 PERCENT.
15K FT MSL WINDS....WEST 20 TO 25 MPH BECOMING SOUTHWEST 15 TO 20
MPH IN THE AFTERNOON.
MIXING HEIGHT.......1500 FT AGL UNTIL 1000, THEN 7000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 MPH UNTIL 1200, THEN WEST 10 TO 15
MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30%). ISOLATED SHOWERS AFTER
2400.
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....45-55 F.
MAX HUMIDITY........63-78%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 3 TO 6 MPH.
LOCALIZED GUSTS UP TO 20 MPH IN THE EVENING.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 25 MPH INCREASING TO 20 TO 30
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......5500 FT AGL UNTIL 1900. 500 FT AGL AFTER 2000.
TRANSPORT WINDS.....SOUTH 5 MPH.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40%). ISOLATED SHOWERS UNTIL
1200, SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....70-80 F.
MIN HUMIDITY........24-34%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 4 TO 8 MPH BECOMING
SOUTHWEST 10 TO 15 MPH WITH GUSTS TO 35 MPH IN
THE AFTERNOON.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 30 TO 40 MPH DECREASING TO 25 TO 35
MPH IN THE AFTERNOON.
MIXING HEIGHT.......1500 FT AGL UNTIL 0900, THEN 9000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH UNTIL 1200, THEN 20 TO 25
MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. EXCELLENT AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 43-53. HIGHS 70-80. SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS
TO 30 MPH.
FRIDAY
MOSTLY CLEAR. SCATTERED SHOWERS AND THUNDERSTORMS. LOWS
44-54. HIGHS 71-81. WINDS LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 46-56. HIGHS 71-81. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 47-57. HIGHS 71-81.
LABOR DAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 48-58. HIGHS 72-82.
COZ290-011145-
PARADOX VALLEY FORECAST AREA-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80%) UNTIL 2400, THEN PARTLY
CLOUDY (50-60%). SCATTERED SHOWERS AND
THUNDERSTORMS UNTIL 2400. ISOLATED SHOWERS
AFTER 2400.
CHC OF LIGHTNING....50 PERCENT.
MIN TEMPERATURE.....46-56 F NEAR 6000 FEET
43-53 F NEAR 8000 FEET.
MAX HUMIDITY........70-85% NEAR 6000 FEET
83-98% NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................40 PERCENT.
15K FT MSL WINDS....WEST 10 TO 15 MPH INCREASING TO SOUTHWEST 15 TO
20 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 MPH.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........NEAR 6000 FEET, MOSTLY SUNNY (10-20%) UNTIL
1200, THEN PARTLY CLOUDY (30-40%). NEAR 8000
FEET, MOSTLY SUNNY (20-30%). ISOLATED SHOWERS
AND THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....74-84 F NEAR 6000 FEET
66-76 F NEAR 8000 FEET.
MIN HUMIDITY........24-34%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 25 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 1000, THEN 9500 FT AGL.
TRANSPORT WINDS.....SOUTH 5 MPH UNTIL 1200, THEN SOUTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....48-58 F NEAR 6000 FEET
46-56 F NEAR 8000 FEET.
MAX HUMIDITY........55-65% NEAR 6000 FEET
68-83% NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 3 TO 6 MPH.
LOCALIZED GUSTS UP TO 20 MPH IN THE EVENING.
CWR.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 15 TO 20 MPH INCREASING TO 20 TO 30
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......9000 FT AGL UNTIL 1900. 1000 FT AGL AFTER 2000.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH UNTIL 2400, THEN
SOUTHEAST.
SMOKE DISPERSAL.....FAIR UNTIL 2100, THEN POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....74-84 F NEAR 6000 FEET
66-76 F NEAR 8000 FEET.
MIN HUMIDITY........20-30% NEAR 6000 FEET
26-36% NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 4 TO 8 MPH BECOMING
SOUTHWEST 10 TO 15 MPH IN THE AFTERNOON.
LOCALIZED GUSTS UP TO 30 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 25 TO 35 MPH.
MIXING HEIGHT.......1500 FT AGL UNTIL 0900, THEN 10500 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH UNTIL 1200, THEN SOUTHWEST 15
TO 20 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. EXCELLENT AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS NEAR
8000 FEET. LOWS 53-63. HIGHS 79-89. SOUTHWEST WINDS 10 TO 20 MPH
WITH GUSTS TO 30 MPH.
FRIDAY
MOSTLY CLEAR. SCATTERED SHOWERS AND THUNDERSTORMS. LOWS
55-65. HIGHS 79-89. SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO
30 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 55-65. HIGHS 78-88. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 56-66. HIGHS 79-89.
LABOR DAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 56-66. HIGHS 81-91.
COZ291-011145-
NORTHERN SAN JUAN FORECAST AREA-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80%) UNTIL 2400, THEN PARTLY
CLOUDY (50-60%). SCATTERED SHOWERS AND
THUNDERSTORMS UNTIL 2400, THEN ISOLATED
SHOWERS.
CHC OF LIGHTNING....50 PERCENT.
MIN TEMPERATURE.....43-53 F.
MAX HUMIDITY........77-92%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................40 PERCENT.
15K FT MSL WINDS....SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 MPH.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%) UNTIL 1200, THEN PARTLY
CLOUDY (30-40%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....64-74 F.
MIN HUMIDITY........29-39%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 25 MPH.
MIXING HEIGHT.......2000 FT AGL UNTIL 1000, THEN 8000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....44-54 F.
MAX HUMIDITY........66-81%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 3 TO 6 MPH.
LOCALIZED GUSTS UP TO 20 MPH IN THE EVENING.
CWR.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 15 TO 20 MPH INCREASING TO 20 TO 30
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......5500 FT AGL UNTIL 2000, THEN 500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....67-77 F.
MIN HUMIDITY........24-34%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 4 TO 8 MPH BECOMING
SOUTHWEST 10 TO 15 MPH IN THE AFTERNOON.
LOCALIZED GUSTS UP TO 30 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 25 TO 35 MPH DECREASING TO 20 TO 30
MPH IN THE AFTERNOON.
MIXING HEIGHT.......500 FT AGL UNTIL 0800. 9500 FT AGL AFTER 0900.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. EXCELLENT AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS 45-55. HIGHS 71-81. SOUTHWEST
WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
FRIDAY
PARTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS. LOWS 46-56. HIGHS 70-80. WINDS LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 47-57. HIGHS 70-80. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 47-57. HIGHS 71-81.
LABOR DAY
PARTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS. LOWS 48-58. HIGHS 72-82.
COZ292-011145-
NORTH FORK FORECAST AREA-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80%) UNTIL 2400, THEN PARTLY
CLOUDY (50-60%). NEAR 6000 FEET, NUMEROUS
SHOWERS AND SCATTERED THUNDERSTORMS UNTIL 2400,
THEN SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. NEAR 8000 FEET, SCATTERED
SHOWERS AND THUNDERSTORMS UNTIL 2400, THEN
ISOLATED SHOWERS AND THUNDERSTORMS.
CHC OF LIGHTNING....50 PERCENT.
MIN TEMPERATURE.....48-58 F NEAR 6000 FEET
44-54 F NEAR 8000 FEET.
MAX HUMIDITY........74-89% NEAR 6000 FEET
81-96% NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................40 PERCENT.
15K FT MSL WINDS....SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 MPH.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%). NEAR 8000 FEET, ISOLATED
SHOWERS AND THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....73-83 F NEAR 6000 FEET
66-76 F NEAR 8000 FEET.
MIN HUMIDITY........26-36%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 25 MPH.
MIXING HEIGHT.......2000 FT AGL UNTIL 1100, THEN 9000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 MPH UNTIL 1200, THEN SOUTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 1200. GOOD AFTER 1500.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30%). ISOLATED SHOWERS AFTER
2400.
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....49-59 F.
MAX HUMIDITY........60-75%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 25 MPH INCREASING TO 20 TO 30
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......6500 FT AGL UNTIL 1900. 500 FT AGL AFTER 2000.
TRANSPORT WINDS.....SOUTHWEST 5 MPH UNTIL 2400, THEN SOUTHEAST.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%). ISOLATED SHOWERS.
ISOLATED THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....75-85 F NEAR 6000 FEET
67-77 F NEAR 8000 FEET.
MIN HUMIDITY........23-33%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 4 TO 8 MPH BECOMING
SOUTHWEST 10 TO 15 MPH WITH GUSTS TO 30 MPH IN
THE AFTERNOON.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 25 TO 35 MPH.
MIXING HEIGHT.......1500 FT AGL UNTIL 0900, THEN 11000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH UNTIL 1200, THEN SOUTHWEST 15
TO 20 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. EXCELLENT AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 51-61. HIGHS 80-90. SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS
TO 30 MPH.
FRIDAY
MOSTLY CLEAR. SCATTERED SHOWERS AND THUNDERSTORMS. LOWS
53-63. HIGHS 80-90. WINDS LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 53-63. HIGHS 79-89. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY NEAR 6000 FEET AND MOSTLY CLOUDY NEAR
8000 FEET. SCATTERED SHOWERS AND THUNDERSTORMS. LOWS 54-64. HIGHS
80-90.
LABOR DAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 54-64. HIGHS 81-91.
COZ293-011145-
GUNNISON BASIN FORECAST AREA-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80%). SCATTERED THUNDERSTORMS
UNTIL 2400. SCATTERED SHOWERS. ISOLATED
THUNDERSTORMS AFTER 2400.
CHC OF LIGHTNING....50 PERCENT.
MIN TEMPERATURE.....44-54 F.
MAX HUMIDITY........80-95%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................50 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 30 MPH DECREASING TO 20 TO 25
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 MPH UNTIL 2400, THEN SOUTHWEST.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40%) UNTIL 1200, THEN MOSTLY
SUNNY (20-30%). ISOLATED SHOWERS AND
THUNDERSTORMS.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....70-80 F.
MIN HUMIDITY........28-38%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 25 MPH.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 8000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 MPH UNTIL 1200, THEN WEST 10 TO 15
MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30%). ISOLATED SHOWERS AFTER
2400.
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....44-54 F.
MAX HUMIDITY........65-80%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 15 TO 20 MPH INCREASING TO 20 TO 25
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......6500 FT AGL UNTIL 1900. 500 FT AGL AFTER 2000.
TRANSPORT WINDS.....SOUTHWEST 5 MPH.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40%) UNTIL 1200, THEN MOSTLY
SUNNY (20-30%). ISOLATED SHOWERS. ISOLATED
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....71-81 F.
MIN HUMIDITY........24-34%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 4 TO 8 MPH BECOMING
WEST 10 TO 15 MPH IN THE AFTERNOON. LOCALIZED
GUSTS UP TO 30 MPH.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 25 TO 35 MPH DECREASING TO 20 TO 30
MPH IN THE AFTERNOON.
MIXING HEIGHT.......1500 FT AGL UNTIL 0900, THEN 10000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH UNTIL 1200, THEN 15 TO 20
MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. EXCELLENT AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 42-52. HIGHS 72-82. WINDS LESS THAN 15 MPH.
FRIDAY
MOSTLY CLEAR. SCATTERED SHOWERS AND THUNDERSTORMS. LOWS
43-53. HIGHS 71-81. WINDS LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 45-55. HIGHS 72-82. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 46-56. HIGHS 72-82.
LABOR DAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 46-56. HIGHS 73-83.
COZ207-011145-
SOUTHWEST COLORADO LOWER FORECAST AREA-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80%) UNTIL 2400, THEN PARTLY
CLOUDY (40-50%). SCATTERED SHOWERS AND
THUNDERSTORMS UNTIL 2400.
CHC OF LIGHTNING....30 PERCENT.
MIN TEMPERATURE.....49-59 F.
MAX HUMIDITY........83-98%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................30 PERCENT.
15K FT MSL WINDS....WEST 10 TO 15 MPH INCREASING TO SOUTHWEST 15 TO
20 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......3000 FT AGL UNTIL 2000, THEN 1000 FT AGL.
TRANSPORT WINDS.....EAST 5 MPH.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%). ISOLATED SHOWERS AFTER
1200.
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....75-85 F.
MIN HUMIDITY........23-33%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 25 MPH.
MIXING HEIGHT.......1000 FT AGL UNTIL 1000. 9500 FT AGL AFTER 1100.
TRANSPORT WINDS.....SOUTHEAST 5 MPH UNTIL 1200, THEN SOUTHWEST.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....51-61 F.
MAX HUMIDITY........63-78%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 20 TO 25 MPH INCREASING TO 20 TO 30
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......8500 FT AGL UNTIL 1900. 1000 FT AGL AFTER 2000.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH UNTIL 2400, THEN
SOUTHEAST.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40%) UNTIL 1200, THEN MOSTLY
SUNNY (10-20%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....76-86 F.
MIN HUMIDITY........19-29%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 4 TO 8 MPH BECOMING
SOUTHWEST 10 TO 15 MPH IN THE AFTERNOON.
LOCALIZED GUSTS UP TO 30 MPH.
CWR.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 25 TO 35 MPH.
MIXING HEIGHT.......1500 FT AGL UNTIL 0900, THEN 10000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. VERY GOOD AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS 51-61. HIGHS 80-90. SOUTHWEST
WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
FRIDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 52-62. HIGHS 79-89. WINDS LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 52-62. HIGHS 79-89. WINDS LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 53-63. HIGHS 81-91.
LABOR DAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 53-63. HIGHS 83-93.
COZ294-011145-
SOUTHWEST COLORADO UPPER WEST FORECAST AREA-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80%) UNTIL 2400, THEN PARTLY
CLOUDY (40-50%). SCATTERED SHOWERS AND
THUNDERSTORMS UNTIL 2400, THEN ISOLATED
SHOWERS.
CHC OF LIGHTNING....50 PERCENT.
MIN TEMPERATURE.....44-54 F.
MAX HUMIDITY........86-100%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................30 PERCENT.
15K FT MSL WINDS....WEST 10 TO 15 MPH INCREASING TO SOUTHWEST 15 TO
20 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 MPH.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%).
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....64-74 F.
MIN HUMIDITY........28-38%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......500 FT AGL UNTIL 0900. 8000 FT AGL AFTER 1100.
TRANSPORT WINDS.....SOUTH 5 MPH UNTIL 1200, THEN SOUTHWEST 10 TO 15
MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....47-57 F.
MAX HUMIDITY........74-89%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 15 TO 20 MPH INCREASING TO 20 TO 30
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......5500 FT AGL UNTIL 2000, THEN 500 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40%) UNTIL 1200, THEN MOSTLY
SUNNY (10-20%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....64-74 F.
MIN HUMIDITY........26-36%.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 25 TO 35 MPH DECREASING TO 20 TO 30
MPH IN THE AFTERNOON.
MIXING HEIGHT.......1500 FT AGL UNTIL 0900, THEN 9500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH UNTIL 1200, THEN 15 TO 20
MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. VERY GOOD AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS 43-53. HIGHS 69-79. WINDS LESS
THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 45-55. HIGHS 69-79. WINDS LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 45-55. HIGHS 69-79. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 46-56. HIGHS 70-80.
LABOR DAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 46-56. HIGHS 72-82.
COZ295-011145-
SOUTHWEST COLORADO UPPER EAST FORECAST AREA-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80%) UNTIL 2400, THEN PARTLY
CLOUDY (50-60%). SCATTERED THUNDERSTORMS UNTIL
2400. SCATTERED SHOWERS. ISOLATED THUNDERSTORMS
AFTER 2400.
CHC OF LIGHTNING....50 PERCENT.
MIN TEMPERATURE.....47-57 F.
MAX HUMIDITY........84-99%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................40 PERCENT.
15K FT MSL WINDS....SOUTH 25 TO 35 MPH BECOMING SOUTHWEST 20 TO 30
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 5 MPH UNTIL 2400, THEN EAST.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%) UNTIL 1200, THEN PARTLY
CLOUDY (30-40%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....69-79 F.
MIN HUMIDITY........26-36%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY WINDS 4 TO 8 MPH. LOCALIZED
GUSTS UP TO 25 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 15 TO 20 MPH BECOMING WEST 10 TO 15
MPH IN THE AFTERNOON.
MIXING HEIGHT.......1500 FT AGL UNTIL 1000, THEN 8500 FT AGL.
TRANSPORT WINDS.....WEST 5 MPH UNTIL 1200, THEN 10 TO 15 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1200.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30%).
CHC OF LIGHTNING....0 PERCENT.
MIN TEMPERATURE.....45-55 F.
MAX HUMIDITY........66-81%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
15K FT MSL WINDS....SOUTHWEST 10 TO 15 MPH INCREASING TO 20 TO 25
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......7000 FT AGL UNTIL 1900. 500 FT AGL AFTER 2000.
TRANSPORT WINDS.....WEST 5 TO 10 MPH UNTIL 2400, THEN NORTH.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....71-81 F.
MIN HUMIDITY........21-31%.
20-FOOT WINDS.......UPSLOPE/UPVALLEY WINDS 4 TO 8 MPH. LOCALIZED
GUSTS UP TO 25 MPH IN THE AFTERNOON.
CWR.................10 PERCENT.
15K FT MSL WINDS....SOUTHWEST 25 TO 35 MPH DECREASING TO 20 TO 25
MPH IN THE AFTERNOON.
MIXING HEIGHT.......1500 FT AGL UNTIL 0900, THEN 10000 FT AGL.
TRANSPORT WINDS.....WEST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900. VERY GOOD AFTER 1200.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS 43-53. HIGHS 72-82. WINDS LESS
THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 44-54. HIGHS 71-81. WINDS LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 45-55. HIGHS 72-82. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 46-56. HIGHS 73-83.
LABOR DAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 46-56. HIGHS 74-84.
UTZ485-011145-
EASTERN ASHLEY NATIONAL FOREST-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80%) UNTIL 2400, THEN PARTLY
CLOUDY (50-60%). NEAR 7000 FEET, SCATTERED
THUNDERSTORMS UNTIL 2400. SCATTERED SHOWERS.
ISOLATED THUNDERSTORMS AFTER 2400. NEAR 10000
FEET, NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS UNTIL 2400, THEN SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS.
CHC OF LIGHTNING....50 PERCENT.
MIN TEMPERATURE.....45-55 F NEAR 7000 FEET
35-45 F NEAR 10000 FEET.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........83-98% NEAR 7000 FEET
90-100% NEAR 10000 FEET.
24 HR TREND......16% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................80 PERCENT.
MIXING HEIGHT.......4500 FT AGL UNTIL 1900, THEN 1500 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
CLEARING INDEX......700 UNTIL 1900. LESS THAN 500 AFTER 2000.
TUESDAY
SKY/WEATHER.........NEAR 7000 FEET, PARTLY CLOUDY (30-40%). NEAR
10000 FEET, MOSTLY SUNNY (20-30%) UNTIL 1200,
THEN PARTLY CLOUDY (40-50%). ISOLATED SHOWERS
AND THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....20 PERCENT.
MAX TEMPERATURE.....65-75 F NEAR 7000 FEET
56-66 F NEAR 10000 FEET.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........41-51% NEAR 7000 FEET
53-63% NEAR 10000 FEET.
24 HR TREND......7% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................10 PERCENT.
MIXING HEIGHT.......2000 FT AGL UNTIL 1100, THEN 5500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 1100. 800 AFTER 1200.
TUESDAY NIGHT
SKY/WEATHER.........NEAR 7000 FEET, PARTLY CLOUDY (40-50%),
ISOLATED THUNDERSTORMS UNTIL 2400. NEAR 10000
FEET, MOSTLY CLOUDY (60-70%) UNTIL 2400, THEN
PARTLY CLOUDY (40-50%), SCATTERED THUNDERSTORMS
UNTIL 2400. SCATTERED SHOWERS.
CHC OF LIGHTNING....20 PERCENT.
MIN TEMPERATURE.....46-56 F NEAR 7000 FEET
35-45 F NEAR 10000 FEET.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........75-90% NEAR 7000 FEET
89-100% NEAR 10000 FEET.
24 HR TREND......4% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................40 PERCENT.
MIXING HEIGHT.......3500 FT AGL UNTIL 2000, THEN 1000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
CLEARING INDEX......550 UNTIL 2000, THEN LESS THAN 500.
WEDNESDAY
SKY/WEATHER.........NEAR 7000 FEET, MOSTLY SUNNY (20-30%). NEAR
10000 FEET, PARTLY CLOUDY (30-40%) UNTIL 1200,
THEN MOSTLY SUNNY (20-30%). ISOLATED SHOWERS
AND THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....65-75 F NEAR 7000 FEET
56-66 F NEAR 10000 FEET.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........31-41% NEAR 7000 FEET
43-53% NEAR 10000 FEET.
24 HR TREND......8% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 4 TO 8 MPH BECOMING
SOUTHWEST 10 TO 15 MPH IN THE AFTERNOON.
LOCALIZED GUSTS UP TO 35 MPH.
CWR.................10 PERCENT.
MIXING HEIGHT.......1000 FT AGL UNTIL 0900, THEN 9000 FT AGL.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH UNTIL 1200, THEN SOUTHWEST
20 TO 25 MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 0900. 1050 AFTER 1100.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS .
LOWS 45-55. HIGHS 67-77. SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO
35 MPH.
FRIDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS NEAR
10000 FEET. LOWS 47-57. HIGHS 69-79. SOUTH WINDS 10 TO 20 MPH
WITH GUSTS TO 35 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS .
LOWS 49-59. HIGHS 68-78. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 49-59. HIGHS 65-75.
LABOR DAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS .
LOWS 48-58. HIGHS 68-78.
UTZ486-011145-
EASTERN UINTA BASIN-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80%) UNTIL 2400, THEN PARTLY
CLOUDY (50-60%). NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS UNTIL 2400. SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS AFTER 2400.
CHC OF LIGHTNING....50 PERCENT.
MIN TEMPERATURE.....47-57 F.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........80-95%.
24 HR TREND......8% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 3 TO 6 MPH.
LOCALIZED GUSTS UP TO 20 MPH AFTER MIDNIGHT.
CWR.................80 PERCENT.
MIXING HEIGHT.......3500 FT AGL UNTIL 2000, THEN 1500 FT AGL.
TRANSPORT WINDS.....SOUTH 5 MPH.
CLEARING INDEX......750 UNTIL 1900, THEN LESS THAN 500.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....68-78 F NEAR 5000 FEET
57-67 F NEAR 8000 FEET.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........40-50% NEAR 5000 FEET
48-58% NEAR 8000 FEET.
24 HR TREND......6% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................10 PERCENT.
MIXING HEIGHT.......6500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 MPH UNTIL 1200, THEN 10 TO 15 MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 1200, THEN 900.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50%). NEAR 5000 FEET,
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.
NEAR 8000 FEET, ISOLATED THUNDERSTORMS UNTIL
2400. ISOLATED SHOWERS.
CHC OF LIGHTNING....20 PERCENT.
MIN TEMPERATURE.....47-57 F.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........67-82%.
24 HR TREND......11% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................20 PERCENT.
MIXING HEIGHT.......5000 FT AGL UNTIL 1900. 1000 FT AGL AFTER 2000.
TRANSPORT WINDS.....WEST 5 TO 10 MPH UNTIL 2400, THEN EAST.
CLEARING INDEX......800 UNTIL 1900. LESS THAN 500 AFTER 2000.
WEDNESDAY
SKY/WEATHER.........NEAR 5000 FEET, MOSTLY SUNNY (20-30%). NEAR
8000 FEET, PARTLY CLOUDY (30-40%) UNTIL 1200,
THEN MOSTLY SUNNY (10-20%). ISOLATED SHOWERS
AND THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....69-79 F NEAR 5000 FEET
58-68 F NEAR 8000 FEET.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........29-39%.
24 HR TREND......8% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 4 TO 8 MPH BECOMING
SOUTHWEST 10 TO 15 MPH IN THE AFTERNOON.
LOCALIZED GUSTS UP TO 30 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......1000 FT AGL UNTIL 0900, THEN 11000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH UNTIL 1200, THEN SOUTHWEST 20
TO 25 MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 1000. 1050 AFTER 1100.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 49-59. HIGHS 72-82. SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS
TO 30 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 52-62. HIGHS 74-84. SOUTHWEST WINDS
10 TO 20 MPH WITH GUSTS TO 30 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 53-63. HIGHS 72-82. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 53-63. HIGHS 70-80.
LABOR DAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS
NEAR 6000 FEET AND SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS
NEAR 8000 FEET. LOWS 52-62. HIGHS 73-83.
UTZ487-011145-
BOOK CLIFFS-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80%) UNTIL 2400, THEN PARTLY
CLOUDY (50-60%). NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS UNTIL 2400. ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 2400.
CHC OF LIGHTNING....50 PERCENT.
MIN TEMPERATURE.....48-58 F NEAR 5000 FEET
43-53 F NEAR 8000 FEET.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........84-99%.
24 HR TREND......5% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 3 TO 6 MPH.
LOCALIZED GUSTS UP TO 20 MPH IN THE EVENING.
CWR.................60 PERCENT.
MIXING HEIGHT.......3000 FT AGL UNTIL 2000, THEN 1000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
CLEARING INDEX......700 UNTIL 1900. LESS THAN 500 AFTER 2000.
TUESDAY
SKY/WEATHER.........NEAR 5000 FEET, MOSTLY SUNNY (10-20%) UNTIL
1200, THEN PARTLY CLOUDY (30-40%). NEAR 8000
FEET, PARTLY CLOUDY (30-40%) UNTIL 1200, THEN
MOSTLY SUNNY (20-30%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....69-79 F NEAR 5000 FEET
63-73 F NEAR 8000 FEET.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........35-45% NEAR 5000 FEET
41-51% NEAR 8000 FEET.
24 HR TREND......10% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY WINDS 4 TO 8 MPH. LOCALIZED
GUSTS UP TO 20 MPH INCREASING TO 30 MPH IN THE
AFTERNOON.
CWR.................10 PERCENT.
MIXING HEIGHT.......2500 FT AGL UNTIL 1100, THEN 8000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 1200. 1050 AFTER 1300.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%). ISOLATED THUNDERSTORMS
UNTIL 2400. ISOLATED SHOWERS.
CHC OF LIGHTNING....10 PERCENT.
MIN TEMPERATURE.....50-60 F NEAR 5000 FEET
45-55 F NEAR 8000 FEET.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........63-78%.
24 HR TREND......20% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................10 PERCENT.
MIXING HEIGHT.......5500 FT AGL UNTIL 2000, THEN 1000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
CLEARING INDEX......900 UNTIL 1900. LESS THAN 500 AFTER 2000.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....70-80 F NEAR 5000 FEET
64-74 F NEAR 8000 FEET.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........24-34% NEAR 5000 FEET
31-41% NEAR 8000 FEET.
24 HR TREND......10% DRIER.
20-FOOT WINDS.......SOUTH WINDS 15 TO 20 MPH WITH GUSTS TO 35 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......1500 FT AGL UNTIL 0900, THEN 11000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH UNTIL 1200, THEN 20 TO
25 MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 0900. 1050 AFTER 1000.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
CLEAR. LOWS 50-60. HIGHS 76-86. SOUTHWEST WINDS 10 TO
20 MPH WITH GUSTS TO 30 MPH.
FRIDAY
MOSTLY CLEAR. ISOLATED SHOWERS NEAR 6000 FEET AND
ISOLATED SHOWERS AND THUNDERSTORMS NEAR 8000 FEET. LOWS 52-62.
HIGHS 77-87. SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 35 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS .
LOWS 53-63. HIGHS 75-85. SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO
30 MPH.
SUNDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS .
LOWS 52-62. HIGHS 73-83.
LABOR DAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS .
LOWS 51-61. HIGHS 76-86.
UTZ490-011145-
COLORADO RIVER BASIN-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80%) UNTIL 2400, THEN PARTLY
CLOUDY (40-50%). NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS UNTIL 2400. ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 2400.
CHC OF LIGHTNING....50 PERCENT.
MIN TEMPERATURE.....51-61 F.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........82-97%.
24 HR TREND......18% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................60 PERCENT.
MIXING HEIGHT.......3500 FT AGL UNTIL 2000, THEN 1000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH UNTIL 2400, THEN EAST.
CLEARING INDEX......600 UNTIL 2000, THEN LESS THAN 500.
TUESDAY
SKY/WEATHER.........NEAR 5000 FEET, MOSTLY SUNNY (20-30%), ISOLATED
SHOWERS AND THUNDERSTORMS AFTER 1200. NEAR 7000
FEET, PARTLY CLOUDY (30-40%) UNTIL 1200, THEN
MOSTLY SUNNY (10-20%), ISOLATED SHOWERS AFTER
1200.
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....79-89 F NEAR 5000 FEET
67-77 F NEAR 7000 FEET.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........28-38% NEAR 5000 FEET
37-47% NEAR 7000 FEET.
24 HR TREND......8% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................10 PERCENT.
MIXING HEIGHT.......9000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 MPH UNTIL 1200, THEN SOUTHWEST 10
TO 15 MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 1300. 1050 AFTER 1400.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%). ISOLATED THUNDERSTORMS
UNTIL 2400. ISOLATED SHOWERS.
CHC OF LIGHTNING....10 PERCENT.
MIN TEMPERATURE.....56-66 F.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........55-70%.
24 HR TREND......39% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................10 PERCENT.
MIXING HEIGHT.......8000 FT AGL UNTIL 2000, THEN 1000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
CLEARING INDEX......1000 UNTIL 2000, THEN LESS THAN 500.
WEDNESDAY
SKY/WEATHER.........NEAR 5000 FEET, PARTLY CLOUDY (30-40%) UNTIL
1200, THEN MOSTLY SUNNY (10-20%). NEAR 7000
FEET, MOSTLY SUNNY (20-30%). ISOLATED SHOWERS
AND THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....81-91 F NEAR 5000 FEET
68-78 F NEAR 7000 FEET.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........21-31% NEAR 5000 FEET
27-37% NEAR 7000 FEET.
24 HR TREND......8% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 4 TO 8 MPH BECOMING
SOUTHWEST 15 TO 20 MPH IN THE AFTERNOON.
LOCALIZED GUSTS UP TO 35 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......1000 FT AGL UNTIL 0900. 11500 FT AGL AFTER
1000.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH UNTIL 1200, THEN SOUTHWEST 20
TO 25 MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 0900. 1050 AFTER 1000.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
CLEAR. LOWS 56-66. HIGHS 82-92. SOUTHWEST WINDS 10 TO
20 MPH WITH GUSTS TO 35 MPH.
FRIDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS . LOWS
58-68. HIGHS 83-93. SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO
35 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS NEAR 5000 FEET AND SCATTERED SHOWERS AND
THUNDERSTORMS NEAR 7000 FEET. LOWS 58-68. HIGHS 81-91. SOUTH
WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
SUNDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS .
LOWS 57-67. HIGHS 80-90.
LABOR DAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS .
LOWS 57-67. HIGHS 83-93.
UTZ491-011145-
SOUTHEAST UTAH-
139 PM MDT MON AUG 31 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70%) UNTIL 2400, THEN PARTLY
CLOUDY (30-40%). NEAR 5000 FEET, SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS UNTIL 2400.
NEAR 8000 FEET, SCATTERED SHOWERS AND
THUNDERSTORMS UNTIL 2400.
CHC OF LIGHTNING....20 PERCENT.
MIN TEMPERATURE.....52-62 F NEAR 5000 FEET
45-55 F NEAR 8000 FEET.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........81-96%.
24 HR TREND......1% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................50 PERCENT.
MIXING HEIGHT.......3500 FT AGL UNTIL 2000, THEN 1000 FT AGL.
TRANSPORT WINDS.....EAST 5 MPH.
CLEARING INDEX......650 UNTIL 1900, THEN LESS THAN 500.
TUESDAY
SKY/WEATHER.........NEAR 5000 FEET, MOSTLY SUNNY (20-30%). NEAR
8000 FEET, MOSTLY SUNNY (10-20%) UNTIL 1200,
THEN PARTLY CLOUDY (30-40%). ISOLATED SHOWERS
AND THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....10 PERCENT.
MAX TEMPERATURE.....77-87 F NEAR 5000 FEET
62-72 F NEAR 8000 FEET.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........25-35% NEAR 5000 FEET
35-45% NEAR 8000 FEET.
24 HR TREND......17% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BECOMING
UPSLOPE/UPVALLEY 4 TO 8 MPH BY 1100.
CWR.................10 PERCENT.
MIXING HEIGHT.......1000 FT AGL UNTIL 1000. 9000 FT AGL AFTER 1200.
TRANSPORT WINDS.....SOUTHEAST 5 MPH UNTIL 1200, THEN SOUTHWEST.
CLEARING INDEX......LESS THAN 500 UNTIL 1200. 1050 AFTER 1400.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40%). NEAR 5000 FEET,
ISOLATED SHOWERS AND THUNDERSTORMS UNTIL 2400.
NEAR 8000 FEET, ISOLATED SHOWERS UNTIL 2400.
CHC OF LIGHTNING....10 PERCENT.
MIN TEMPERATURE.....54-64 F NEAR 5000 FEET
49-59 F NEAR 8000 FEET.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........57-72%.
24 HR TREND......23% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH BECOMING
DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH BY SUNSET.
CWR.................0 PERCENT.
MIXING HEIGHT.......7500 FT AGL UNTIL 2000, THEN 1000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
CLEARING INDEX......1050 UNTIL 1900. LESS THAN 500 AFTER 2000.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (10-20%). ISOLATED SHOWERS AND
THUNDERSTORMS AFTER 1200.
CHC OF LIGHTNING....0 PERCENT.
MAX TEMPERATURE.....80-90 F NEAR 5000 FEET
63-73 F NEAR 8000 FEET.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........20-30% NEAR 5000 FEET
30-40% NEAR 8000 FEET.
24 HR TREND......5% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY WINDS 4 TO 8 MPH BECOMING
SOUTHWEST 10 TO 15 MPH IN THE AFTERNOON.
LOCALIZED GUSTS UP TO 30 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......1000 FT AGL UNTIL 0900. 11500 FT AGL AFTER
1000.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH UNTIL 1200, THEN 15 TO 20
MPH.
CLEARING INDEX......LESS THAN 500 UNTIL 0900. 1050 AFTER 1000.
FORECAST FOR DAY 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS NEAR
8000 FEET. LOWS 56-66. HIGHS 83-93. SOUTHWEST WINDS 10 TO 20 MPH
WITH GUSTS TO 30 MPH.
FRIDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS .
LOWS 58-68. HIGHS 82-92. WINDS LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS .
LOWS 57-67. HIGHS 80-90. WINDS LESS THAN 15 MPH.
SUNDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS .
LOWS 56-66. HIGHS 81-91.
LABOR DAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS .
LOWS 57-67. HIGHS 84-94.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page