252
FNUS55 KSLC 152017
FWFSLC
FIRE WEATHER PLANNING FORECAST FOR UTAH
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
217 PM MDT MON SEP 15 2025
..BECOMING DRIER BEHIND GRAZING STORM SYSTEM
BROADCAST DISCUSSION
A STORM SYSTEM WILL MEANDER OVER NORTHERN
UTAH MONDAY AND TUESDAY RESULTING IN COOLER TEMPERATURES AND
SCATTERED SHOWERS AND THUNDERSTORMS. HIGH PRESSURE WILL FOLLOW
BRINGING DRIER AND WARMER CONDITIONS WEDNESDAY AND THURSDAY. CHANCES
FOR RAIN RETURN THIS WEEKEND.
DISCUSSION
A STORM SYSTEM CURRENTLY GRAZING NORTHERN UTAH WILL
CONTINUE TO SLOWLY MEANDER EAST THROUGH EARLY WEDNESDAY. FOR
INTERESTS ACROSS NORTHEAST UTAH, CHANCES FOR SHOWERS AND
THUNDERSTORMS WILL EXIST BOTH MONDAY AND TUESDAY WITH THE BEST
CHANCES TUESDAY MORNING AND AFTERNOON ACROSS THE WASATCH FRONT AND
THE UINTAS. BEST CHANCES FOR A WETTING RAIN APPEARS TO BE TUESDAY
AFTERNOON IN THE EASTERN UINTAS. ON WEDNESDAY, THE SYSTEM GRADUALLY
EXITS EAST WITH A GRADUAL DRYING AND WARMING TREND ACROSS UT AS A
RESULT AS HIGH PRESSURE SETTLES IN. ANOTHER SYSTEM LOOKS TO PUSH
INTO THE AREA LATE THURSDAY INTO FRIDAY AS SOUTHERLY FLOW BRINGS
MORE MOISTURE INTO THE REGION. AS SUCH, PRECIPITATION CHANCES BEGIN
TO SEE AN INCREASE ONCE AGAIN LATE THURSDAY AND FRIDAY, LIKELY
PERSISTING INTO THE WEEKEND AS MOISTURE CONTINUES TO PUSH INTO THE
AREA.
***THUNDERSTORMS IMPLY STRONG, GUSTY AND ERRATIC WINDS***
***ALL WINDS ARE 20 FOOT, 10-MINUTE AVERAGES***
UTZ478-161215-
SALT LAKE DESERT-
217 PM MDT MON SEP 15 2025
TONIGHT
SKY/WEATHER.........NORTH OF I-80, PARTLY CLOUDY (25-35% CLOUD
COVER) UNTIL 2400, THEN MOSTLY CLOUDY (60-70%
CLOUD COVER), SCATTERED RAIN SHOWERS AFTER
2400. SOUTH OF I-80, MOSTLY CLOUDY (55-65%
CLOUD COVER), SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS AFTER 2400.
CHANCE LIGHTNING....10% INCREASING TO 20% AFTER MIDNIGHT.
CWR.................0%.
MIN TEMPERATURE.....45-55 NEAR 5000 FEET.
41-49 NEAR 8000 FEET.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........55-65%.
24 HR TREND......5% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST AROUND 20 MPH.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER) UNTIL 1200,
THEN SUNNY (10-20% CLOUD COVER). SOUTH OF I-80,
ISOLATED RAIN SHOWERS UNTIL 1200.
CHANCE LIGHTNING....10%.
CWR.................0%.
MAX TEMPERATURE.....69-77 NEAR 5000 FEET.
55-62 NEAR 8000 FEET.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........17-27% NEAR 5000 FEET.
25-35% NEAR 8000 FEET.
24 HR TREND......4% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST AROUND 20 MPH BECOMING NORTHWEST AROUND 10
MPH IN THE AFTERNOON.
MIXING HEIGHT.......8400 FT AGL.
CLIMATOLOGY......40-50TH PERCENTILE.
CLEARING INDEX......740.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....44-54 NEAR 5000 FEET.
43-49 NEAR 8000 FEET.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........51-61%.
24 HR TREND......2% DRIER NEAR 5000 FEET.
9% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 15 MPH.
WEDNESDAY
SKY/WEATHER.........SUNNY (10-20% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....71-80 NEAR 5000 FEET.
57-64 NEAR 8000 FEET.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........18-28% NEAR 5000 FEET.
27-37% NEAR 8000 FEET.
24 HR TREND......2% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTH AROUND 15 MPH.
MIXING HEIGHT.......8500 FT AGL.
CLIMATOLOGY......50-60TH PERCENTILE.
CLEARING INDEX......560.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE
UPPER 70S IN THE VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS.
WINDS GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS AROUND 80 IN
THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE MID 50S IN THE VALLEYS AND
IN THE LOWER 50S IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN THE
VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY LESS
THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE MID 50S IN THE VALLEYS AND IN THE LOWER 50S IN THE
MOUNTAINS. HIGHS IN THE UPPER 70S IN THE VALLEYS AND IN THE MID
60S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S IN THE VALLEYS AND
IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN THE
VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS.
=
UTZ479-161215-
WASATCH MOUNTAINS-
217 PM MDT MON SEP 15 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER). NORTH OF
I-80, SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS AFTER 2400. SOUTH OF I-80,
SCATTERED SHOWERS AND THUNDERSTORMS AFTER 2400.
CHANCE LIGHTNING....10% INCREASING TO 30% AFTER MIDNIGHT.
CWR.................20% NORTH OF I-80 AND 10% SOUTH OF I-80.
MIN TEMPERATURE.....41-51.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........69-79% NEAR 5000 FEET.
65-75% NEAR 8000 FEET.
24 HR TREND......6% WETTER NEAR 5000 FEET.
11% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST 20-25 MPH.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (55-65% CLOUD COVER). NORTH OF
I-80, SCATTERED RAIN SHOWERS UNTIL 1200.
ISOLATED SHOWERS AND THUNDERSTORMS AFTER 1200.
SOUTH OF I-80, ISOLATED THUNDERSTORMS UNTIL
1200. SCATTERED RAIN SHOWERS. SCATTERED
THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....30%.
CWR.................10%.
MAX TEMPERATURE.....70-77 NEAR 5000 FEET.
58-68 NEAR 8000 FEET.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........21-29% NEAR 5000 FEET.
26-36% NEAR 8000 FEET.
24 HR TREND......5% DRIER NEAR 5000 FEET.
UNCHANGED NEAR 8000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST AROUND 20 MPH BECOMING AROUND 10 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......9500 FT AGL.
CLIMATOLOGY......60-70TH PERCENTILE.
CLEARING INDEX......840.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....39-49 NEAR 5000 FEET.
35-45 NEAR 8000 FEET.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........72-82% NEAR 5000 FEET.
61-71% NEAR 8000 FEET.
24 HR TREND......2% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.
WEDNESDAY
SKY/WEATHER.........SUNNY (15-25% CLOUD COVER) UNTIL 1200, THEN
PARTLY CLOUDY (20-30% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....71-79 NEAR 5000 FEET.
59-69 NEAR 8000 FEET.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........25-35%.
24 HR TREND......1% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTH AROUND 10 MPH.
MIXING HEIGHT.......9100 FT AGL.
CLIMATOLOGY......60-70TH PERCENTILE.
CLEARING INDEX......630.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE
UPPER 70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS.
WINDS GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS AROUND 80 IN
THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 50S IN THE VALLEYS AND IN THE UPPER 40S IN THE
MOUNTAINS. HIGHS IN THE UPPER 70S IN THE VALLEYS AND IN THE MID
60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 40S. HIGHS IN THE UPPER 70S IN THE VALLEYS AND IN
THE MID 60S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE MID 40S. HIGHS IN THE MID 70S IN THE VALLEYS AND IN THE
MID 60S IN THE MOUNTAINS.
=
UTZ480-161215-
UINTA MOUNTAINS-
217 PM MDT MON SEP 15 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). ISOLATED
SHOWERS AND THUNDERSTORMS UNTIL 2400, THEN
NUMEROUS RAIN SHOWERS AND SCATTERED
THUNDERSTORMS.
CHANCE LIGHTNING....20% INCREASING TO 30% AFTER MIDNIGHT.
CWR.................20%.
MIN TEMPERATURE.....42-48 NEAR 7000 FEET.
33-43 NEAR 9000 FEET.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........74-84% NEAR 7000 FEET.
78-88% NEAR 9000 FEET.
24 HR TREND......24% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST 20-25 MPH.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). ISOLATED
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN
SHOWERS AND NUMEROUS SNOW SHOWERS. SCATTERED
THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....30% INCREASING TO 40% IN THE AFTERNOON.
CWR.................40%.
MAX TEMPERATURE.....63-70 NEAR 7000 FEET.
54-61 NEAR 9000 FEET.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........31-35% NEAR 7000 FEET.
39-49% NEAR 9000 FEET.
24 HR TREND......2% WETTER NEAR 7000 FEET.
11% WETTER NEAR 9000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST 15-20 MPH.
MIXING HEIGHT.......8500 FT AGL.
CLIMATOLOGY......50-60TH PERCENTILE.
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER). ISOLATED
SHOWERS AND THUNDERSTORMS UNTIL 2400.
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.
CWR.................0%.
MIN TEMPERATURE.....38-44 NEAR 7000 FEET.
29-39 NEAR 9000 FEET.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........60-70% NEAR 7000 FEET.
73-83% NEAR 9000 FEET.
24 HR TREND......12% DRIER NEAR 7000 FEET.
UNCHANGED NEAR 9000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 15 MPH IN THE EVENING BECOMING
LIGHT AND VARIABLE.
WEDNESDAY
SKY/WEATHER.........SUNNY (15-25% CLOUD COVER) UNTIL 1200, THEN
PARTLY CLOUDY (30-40% CLOUD COVER). ISOLATED
SHOWERS AND THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....0% INCREASING TO 10% IN THE AFTERNOON.
CWR.................0%.
MAX TEMPERATURE.....64-71 NEAR 7000 FEET.
55-62 NEAR 9000 FEET.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........30-34% NEAR 7000 FEET.
36-46% NEAR 9000 FEET.
24 HR TREND......1% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH IN THE MORNING BECOMING
LIGHT AND VARIABLE.
MIXING HEIGHT.......8000 FT AGL.
CLIMATOLOGY......50-60TH PERCENTILE.
CLEARING INDEX......610.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S IN THE VALLEYS
AND IN THE MID 30S IN THE MOUNTAINS. HIGHS AROUND 70 IN THE
VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 40S IN THE VALLEYS AND
IN THE UPPER 30S IN THE MOUNTAINS. HIGHS IN THE LOWER 70S IN THE
VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY LESS
THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 40S IN THE VALLEYS AND IN THE
LOWER 40S IN THE MOUNTAINS. HIGHS IN THE LOWER 70S IN THE VALLEYS
AND IN THE LOWER 60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN
15 MPH.
SUNDAY
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 40S IN THE VALLEYS AND IN THE
LOWER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN THE VALLEYS
AND IN THE LOWER 60S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 40S IN THE VALLEYS AND IN THE UPPER 30S IN THE
MOUNTAINS. HIGHS AROUND 70 IN THE VALLEYS AND IN THE LOWER 60S IN
THE MOUNTAINS.
=
UTZ481-161215-
WESTERN ASHLEY NATIONAL FOREST-
217 PM MDT MON SEP 15 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER). ISOLATED
SHOWERS AND THUNDERSTORMS UNTIL 2400, THEN
SCATTERED RAIN SHOWERS, THUNDERSTORMS AND
NUMEROUS SNOW SHOWERS.
CHANCE LIGHTNING....20% INCREASING TO 30% AFTER MIDNIGHT.
CWR.................20%.
MIN TEMPERATURE.....44-50 NEAR 7000 FEET.
32-42 NEAR 10000 FEET.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........64-74% NEAR 7000 FEET.
73-83% NEAR 10000 FEET.
24 HR TREND......12% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH. GUSTS UP TO 25
MPH IN THE EVENING.
12K FT MSL WINDS....SOUTHWEST AROUND 20 MPH.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). NUMEROUS
RAIN SHOWERS, SNOW SHOWERS AND SCATTERED
THUNDERSTORMS.
CHANCE LIGHTNING....30% INCREASING TO 40% IN THE AFTERNOON.
CWR.................50%.
MAX TEMPERATURE.....62-70 NEAR 7000 FEET.
50-58 NEAR 10000 FEET.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........29-35% NEAR 7000 FEET.
39-49% NEAR 10000 FEET.
24 HR TREND......9% WETTER NEAR 7000 FEET.
14% WETTER NEAR 10000 FEET.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST 15-20 MPH.
MIXING HEIGHT.......7400 FT AGL.
CLIMATOLOGY......50-60TH PERCENTILE.
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER). ISOLATED
RAIN SHOWERS, THUNDERSTORMS AND SNOW SHOWERS
UNTIL 2400.
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.
CWR.................0%.
MIN TEMPERATURE.....39-45 NEAR 7000 FEET.
28-38 NEAR 10000 FEET.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........56-66% NEAR 7000 FEET.
68-78% NEAR 10000 FEET.
24 HR TREND......5% DRIER NEAR 7000 FEET.
UNCHANGED NEAR 10000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 15 MPH IN THE EVENING BECOMING
LIGHT AND VARIABLE.
WEDNESDAY
SKY/WEATHER.........SUNNY (10-20% CLOUD COVER) UNTIL 1200, THEN
PARTLY SUNNY (50-60% CLOUD COVER). ISOLATED
RAIN SHOWERS, THUNDERSTORMS AND SNOW SHOWERS
AFTER 1200.
CHANCE LIGHTNING....0% INCREASING TO 20% IN THE AFTERNOON.
CWR.................0%.
MAX TEMPERATURE.....63-69 NEAR 7000 FEET.
49-57 NEAR 10000 FEET.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........31-39% NEAR 7000 FEET.
41-51% NEAR 10000 FEET.
24 HR TREND......1% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......7300 FT AGL.
CLIMATOLOGY......50-60TH PERCENTILE.
CLEARING INDEX......510.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S IN THE VALLEYS
AND IN THE MID 30S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN
THE VALLEYS AND IN THE MID 50S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 40S IN THE VALLEYS AND
IN THE UPPER 30S IN THE MOUNTAINS. HIGHS AROUND 70 IN THE VALLEYS
AND IN THE UPPER 50S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN
15 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 40S IN THE VALLEYS AND AROUND
40 IN THE MOUNTAINS. HIGHS IN THE LOWER 70S IN THE VALLEYS AND IN
THE UPPER 50S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 40S IN THE VALLEYS AND AROUND 40 IN THE
MOUNTAINS. HIGHS IN THE UPPER 60S IN THE VALLEYS AND IN THE MID
50S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. ISOLATED RAIN SHOWERS, THUNDERSTORMS AND
SNOW SHOWERS. LOWS IN THE UPPER 40S IN THE VALLEYS AND IN THE
UPPER 30S IN THE MOUNTAINS. HIGHS AROUND 70 IN THE VALLEYS AND IN
THE UPPER 50S IN THE MOUNTAINS.
=
UTZ482-161215-
WESTERN UINTAH BASIN-
217 PM MDT MON SEP 15 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70% CLOUD COVER). SCATTERED
SHOWERS AND THUNDERSTORMS AFTER 2400.
CHANCE LIGHTNING....10% INCREASING TO 30% AFTER MIDNIGHT.
CWR.................10%.
MIN TEMPERATURE.....42-52.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........57-67%.
24 HR TREND......5% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH. GUSTS UP TO 25
MPH IN THE EVENING.
12K FT MSL WINDS....SOUTHWEST AROUND 20 MPH.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER). SCATTERED
SHOWERS AND THUNDERSTORMS.
CHANCE LIGHTNING....30% INCREASING TO 40% IN THE AFTERNOON.
CWR.................20%.
MAX TEMPERATURE.....68-74 NEAR 6000 FEET.
60-66 NEAR 8000 FEET.
24 HR TREND......7 DEGREES COOLER.
MIN HUMIDITY........27-37%.
24 HR TREND......10% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST 20-25 MPH.
MIXING HEIGHT.......9000 FT AGL.
CLIMATOLOGY......50-60TH PERCENTILE.
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (20-30% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MIN TEMPERATURE.....37-47.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........64-74% NEAR 6000 FEET.
54-64% NEAR 8000 FEET.
24 HR TREND......7% WETTER NEAR 6000 FEET.
2% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST AROUND 15 MPH IN THE EVENING BECOMING
LIGHT AND VARIABLE.
WEDNESDAY
SKY/WEATHER.........SUNNY (5-15% CLOUD COVER) UNTIL 1200, THEN
PARTLY CLOUDY (40-50% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....67-73 NEAR 6000 FEET.
59-65 NEAR 8000 FEET.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........33-39% NEAR 6000 FEET.
29-38% NEAR 8000 FEET.
24 HR TREND......3% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.
MIXING HEIGHT.......7900 FT AGL.
CLIMATOLOGY......40-50TH PERCENTILE.
CLEARING INDEX......600.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS.
WINDS GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE MID
70S IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S IN THE VALLEYS AND IN
THE UPPER 60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 40S. HIGHS IN THE MID 70S IN THE VALLEYS AND IN THE
UPPER 60S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 40S. HIGHS IN THE MID 70S IN THE VALLEYS AND IN THE
UPPER 60S IN THE MOUNTAINS.
=
UTZ483-161215-
SOUTHERN ASHLEY NATIONAL FOREST-
217 PM MDT MON SEP 15 2025
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER) UNTIL 2400,
THEN MOSTLY CLOUDY (45-55% CLOUD COVER).
ISOLATED SHOWERS AND THUNDERSTORMS AFTER 2400.
CHANCE LIGHTNING....0% INCREASING TO 20% AFTER MIDNIGHT.
CWR.................0%.
MIN TEMPERATURE.....43-53.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........44-50% NEAR 7000 FEET.
45-55% NEAR 9000 FEET.
24 HR TREND......1% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH. GUSTS UP TO 25
MPH IN THE EVENING.
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (55-65% CLOUD COVER). ISOLATED
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....20% INCREASING TO 40% IN THE AFTERNOON.
CWR.................10%.
MAX TEMPERATURE.....65-71 NEAR 7000 FEET.
58-64 NEAR 9000 FEET.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........26-35% NEAR 7000 FEET.
33-43% NEAR 9000 FEET.
24 HR TREND......9% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST 20-25 MPH.
MIXING HEIGHT.......8900 FT AGL.
CLIMATOLOGY......60-70TH PERCENTILE.
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....37-47.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........56-62% NEAR 7000 FEET.
59-69% NEAR 9000 FEET.
24 HR TREND......14% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST AROUND 20 MPH BECOMING NORTHWEST AROUND 10
MPH AFTER MIDNIGHT.
WEDNESDAY
SKY/WEATHER.........SUNNY (5-15% CLOUD COVER) UNTIL 1200, THEN
PARTLY CLOUDY (30-40% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....64-70 NEAR 7000 FEET.
56-62 NEAR 9000 FEET.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........26-36% NEAR 7000 FEET.
32-42% NEAR 9000 FEET.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST 10-15 MPH.
MIXING HEIGHT.......8800 FT AGL.
CLIMATOLOGY......60-70TH PERCENTILE.
CLEARING INDEX......720.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 40S IN THE VALLEYS AND
IN THE LOWER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN THE
VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS AROUND 50 IN THE VALLEYS AND IN THE
MID 40S IN THE MOUNTAINS. HIGHS IN THE LOWER 70S IN THE VALLEYS
AND IN THE LOWER 60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN
15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 50S IN THE VALLEYS AND IN THE UPPER 40S IN THE
MOUNTAINS. HIGHS IN THE LOWER 70S IN THE VALLEYS AND IN THE LOWER
60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE LOWER 50S IN THE VALLEYS AND IN THE UPPER 40S IN THE
MOUNTAINS. HIGHS IN THE LOWER 70S IN THE VALLEYS AND IN THE LOWER
60S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S IN THE VALLEYS AND
IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE LOWER 70S IN THE
VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS.
=
UTZ484-161215-
TAVAPUTS PLATEAU-
217 PM MDT MON SEP 15 2025
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (45-55% CLOUD COVER). ISOLATED
SHOWERS AND THUNDERSTORMS AFTER 2400.
CHANCE LIGHTNING....0% INCREASING TO 20% AFTER MIDNIGHT.
CWR.................0%.
MIN TEMPERATURE.....49-57 NEAR 6000 FEET.
44-54 NEAR 8000 FEET.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........43-53%.
24 HR TREND......3% WETTER NEAR 6000 FEET.
2% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (50-60% CLOUD COVER). ISOLATED
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....20% INCREASING TO 30% IN THE AFTERNOON.
CWR.................10%.
MAX TEMPERATURE.....70-76 NEAR 6000 FEET.
63-69 NEAR 8000 FEET.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........26-36%.
24 HR TREND......8% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST AROUND 20 MPH.
MIXING HEIGHT.......9900 FT AGL.
CLIMATOLOGY......60-70TH PERCENTILE.
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....44-51 NEAR 6000 FEET.
38-48 NEAR 8000 FEET.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........66-76%.
24 HR TREND......16% WETTER NEAR 6000 FEET.
24% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST AROUND 20 MPH BECOMING NORTHWEST AROUND 10
MPH AFTER MIDNIGHT.
WEDNESDAY
SKY/WEATHER.........SUNNY (15-25% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....68-74 NEAR 6000 FEET.
61-67 NEAR 8000 FEET.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........29-39%.
24 HR TREND......3% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST 10-15 MPH.
MIXING HEIGHT.......8400 FT AGL.
CLIMATOLOGY......50-60TH PERCENTILE.
CLEARING INDEX......670.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S IN THE VALLEYS
AND IN THE LOWER 40S IN THE MOUNTAINS. HIGHS IN THE LOWER 70S IN
THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S IN THE VALLEYS AND
IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE MID 70S IN THE
VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY LESS
THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE MID 50S IN THE VALLEYS AND
IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN THE
VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE MID 50S IN THE VALLEYS AND IN THE UPPER 40S IN THE
MOUNTAINS. HIGHS IN THE UPPER 70S IN THE VALLEYS AND IN THE UPPER
60S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S IN THE VALLEYS AND
IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN THE
VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
=
UTZ488-161215-
MANTI NATIONAL FOREST-
217 PM MDT MON SEP 15 2025
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40% CLOUD COVER). ISOLATED
SHOWERS AND THUNDERSTORMS AFTER 2400.
CHANCE LIGHTNING....0% INCREASING TO 20% AFTER MIDNIGHT.
CWR.................0%.
MIN TEMPERATURE.....46-56 NEAR 6500 FEET.
40-50 NEAR 8500 FEET.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........46-56%.
24 HR TREND......4% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST 15-20 MPH.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (50-60% CLOUD COVER). SCATTERED
RAIN SHOWERS UNTIL 1200. ISOLATED
THUNDERSTORMS. ISOLATED RAIN SHOWERS AFTER
1200.
CHANCE LIGHTNING....20% INCREASING TO 30% IN THE AFTERNOON.
CWR.................0%.
MAX TEMPERATURE.....68-76 NEAR 6500 FEET.
58-68 NEAR 8500 FEET.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........20-29% NEAR 6500 FEET.
24-34% NEAR 8500 FEET.
24 HR TREND......5% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH. GUSTS UP TO 25 MPH
IN THE AFTERNOON.
12K FT MSL WINDS....WEST 20-25 MPH.
MIXING HEIGHT.......9600 FT AGL.
CLIMATOLOGY......60-70TH PERCENTILE.
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....40-50 NEAR 6500 FEET.
35-45 NEAR 8500 FEET.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........46-56% NEAR 6500 FEET.
53-63% NEAR 8500 FEET.
24 HR TREND......11% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH. GUSTS UP TO 25
MPH IN THE EVENING.
12K FT MSL WINDS....WEST 15-20 MPH.
WEDNESDAY
SKY/WEATHER.........SUNNY (10-20% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....67-75 NEAR 6500 FEET.
58-65 NEAR 8500 FEET.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........18-26% NEAR 6500 FEET.
20-30% NEAR 8500 FEET.
24 HR TREND......3% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST 10-15 MPH.
MIXING HEIGHT.......9000 FT AGL.
CLIMATOLOGY......60-70TH PERCENTILE.
CLEARING INDEX......830.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 40S IN THE VALLEYS AND
IN THE UPPER 30S IN THE MOUNTAINS. HIGHS IN THE LOWER 70S IN THE
VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY LESS
THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S IN THE VALLEYS AND
IN THE MID 40S IN THE MOUNTAINS. HIGHS IN THE MID 70S IN THE
VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY LESS
THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 50S IN THE VALLEYS AND IN THE MID 40S IN THE
MOUNTAINS. HIGHS IN THE MID 70S IN THE VALLEYS AND IN THE MID 60S
IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE LOWER 50S IN THE VALLEYS AND IN THE MID 40S IN THE
MOUNTAINS. HIGHS IN THE LOWER 70S IN THE VALLEYS AND IN THE MID
60S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S IN THE VALLEYS AND
IN THE MID 40S IN THE MOUNTAINS. HIGHS IN THE LOWER 70S IN THE
VALLEYS AND IN THE MID 60S IN THE MOUNTAINS.
=
UTZ489-161215-
SAN RAFAEL SWELL-
217 PM MDT MON SEP 15 2025
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MIN TEMPERATURE.....48-58.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........35-45%.
24 HR TREND......9% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40% CLOUD COVER) UNTIL 1200,
THEN PARTLY SUNNY (45-55% CLOUD COVER).
ISOLATED SHOWERS AND THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....10% INCREASING TO 20% IN THE AFTERNOON.
CWR.................0%.
MAX TEMPERATURE.....80-86 NEAR 5000 FEET.
70-76 NEAR 7000 FEET.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........12-21% NEAR 5000 FEET.
17-23% NEAR 7000 FEET.
24 HR TREND......2% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST AROUND 15 MPH.
MIXING HEIGHT.......12100 FT AGL.
CLIMATOLOGY......80-90TH PERCENTILE.
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....43-53.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........46-56%.
24 HR TREND......14% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST 15-20 MPH.
WEDNESDAY
SKY/WEATHER.........SUNNY (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....76-82 NEAR 5000 FEET.
66-72 NEAR 7000 FEET.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........16-25% NEAR 5000 FEET.
21-27% NEAR 7000 FEET.
24 HR TREND......3% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 15 MPH.
MIXING HEIGHT.......9100 FT AGL.
CLIMATOLOGY......50-60TH PERCENTILE.
CLEARING INDEX......790.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE
UPPER 70S IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
WINDS GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS AROUND
80 IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 80S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
WINDS GENERALLY LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE LOWER
80S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER
80S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
=
UTZ492-161215-
CENTRAL UTAH WEST DESERT-
217 PM MDT MON SEP 15 2025
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MIN TEMPERATURE.....42-52.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........43-53% NEAR 5000 FEET.
38-48% NEAR 8000 FEET.
24 HR TREND......10% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER) UNTIL 1200,
THEN SUNNY (10-20% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MAX TEMPERATURE.....74-82 NEAR 5000 FEET.
61-68 NEAR 8000 FEET.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........14-22% NEAR 5000 FEET.
19-29% NEAR 8000 FEET.
24 HR TREND......3% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST 20-25 MPH.
MIXING HEIGHT.......8900 FT AGL.
CLIMATOLOGY......40-50TH PERCENTILE.
CLEARING INDEX......850.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....43-53 NEAR 5000 FEET.
38-48 NEAR 8000 FEET.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........48-58%.
24 HR TREND......4% DRIER NEAR 5000 FEET.
2% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 20 MPH.
WEDNESDAY
SKY/WEATHER.........SUNNY (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....75-81 NEAR 5000 FEET.
62-68 NEAR 8000 FEET.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........12-20% NEAR 5000 FEET.
17-27% NEAR 8000 FEET.
24 HR TREND......2% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST 15-20 MPH.
MIXING HEIGHT.......8700 FT AGL.
CLIMATOLOGY......40-50TH PERCENTILE.
CLEARING INDEX......700.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S IN THE VALLEYS
AND IN THE MID 40S IN THE MOUNTAINS. HIGHS AROUND 80 IN THE
VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY LESS
THAN 15 MPH.
FRIDAY
MOSTLY CLOUDY. LOWS IN THE MID 50S IN THE VALLEYS AND
IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN THE
VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 50S IN THE VALLEYS AND AROUND 50 IN THE
MOUNTAINS. HIGHS IN THE LOWER 80S IN THE VALLEYS AND IN THE UPPER
60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 50S IN THE VALLEYS AND
AROUND 50 IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN THE VALLEYS
AND IN THE UPPER 60S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S IN THE VALLEYS AND
IN THE UPPER 40S IN THE MOUNTAINS. HIGHS AROUND 80 IN THE VALLEYS
AND IN THE MID 60S IN THE MOUNTAINS.
=
UTZ493-161215-
CENTRAL UTAH MOUNTAINS-
217 PM MDT MON SEP 15 2025
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (20-30% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....41-51.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........39-48% NEAR 5000 FEET.
34-44% NEAR 8000 FEET.
24 HR TREND......3% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST AROUND 15 MPH.
TUESDAY
SKY/WEATHER.........SUNNY (15-25% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....76-82 NEAR 5000 FEET.
64-73 NEAR 8000 FEET.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........16-26%.
24 HR TREND......4% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST AROUND 15 MPH.
MIXING HEIGHT.......11500 FT AGL.
CLIMATOLOGY......80-90TH PERCENTILE.
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....38-48.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........52-62% NEAR 5000 FEET.
42-52% NEAR 8000 FEET.
24 HR TREND......8% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH. GUSTS UP TO 25
MPH IN THE EVENING.
12K FT MSL WINDS....NORTHWEST AROUND 25 MPH.
WEDNESDAY
SKY/WEATHER.........SUNNY (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....75-81 NEAR 5000 FEET.
64-72 NEAR 8000 FEET.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........13-23%.
24 HR TREND......4% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST 15-20 MPH.
MIXING HEIGHT.......9400 FT AGL.
CLIMATOLOGY......60-70TH PERCENTILE.
CLEARING INDEX......880.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS AROUND
80 IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
FRIDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 40S. HIGHS IN THE LOWER 80S IN THE VALLEYS AND IN
THE UPPER 60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 40S. HIGHS AROUND 80 IN THE VALLEYS AND IN THE
UPPER 60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 40S. HIGHS AROUND 80 IN THE VALLEYS AND IN THE UPPER
60S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS AROUND 80 IN
THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
=
UTZ494-161215-
HENRY MOUNTAINS-
217 PM MDT MON SEP 15 2025
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....49-59.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........24-34% NEAR 5000 FEET.
22-28% NEAR 8000 FEET.
24 HR TREND......6% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.
TUESDAY
SKY/WEATHER.........SUNNY (10-20% CLOUD COVER) UNTIL 1200, THEN
PARTLY CLOUDY (35-45% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....82-88 NEAR 5000 FEET.
67-77 NEAR 8000 FEET.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........10-14% NEAR 5000 FEET.
13-19% NEAR 8000 FEET.
24 HR TREND......1% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.
MIXING HEIGHT.......13100 FT AGL.
CLIMATOLOGY......80-90TH PERCENTILE.
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....49-59 NEAR 5000 FEET.
48-54 NEAR 8000 FEET.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........37-47% NEAR 5000 FEET.
30-36% NEAR 8000 FEET.
24 HR TREND......9% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST 15-20 MPH.
WEDNESDAY
SKY/WEATHER.........SUNNY (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....76-82 NEAR 5000 FEET.
62-72 NEAR 8000 FEET.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........12-18% NEAR 5000 FEET.
18-25% NEAR 8000 FEET.
24 HR TREND......3% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST AROUND 20 MPH.
MIXING HEIGHT.......8300 FT AGL.
CLIMATOLOGY......40-50TH PERCENTILE.
CLEARING INDEX......800.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S IN THE VALLEYS
AND IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN
THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S IN THE VALLEYS AND
IN THE LOWER 50S IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN THE
VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY LESS
THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S IN THE VALLEYS
AND IN THE LOWER 50S IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN
THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S IN THE VALLEYS AND
IN THE LOWER 50S IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN THE
VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S IN THE VALLEYS AND
IN THE LOWER 50S IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN THE
VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
=
UTZ495-161215-
COLOR COUNTRY WEST DESERT-
217 PM MDT MON SEP 15 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....45-55.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........37-47% NEAR 5000 FEET.
27-37% NEAR 7000 FEET.
24 HR TREND......2% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST AROUND 10 MPH.
TUESDAY
SKY/WEATHER.........SUNNY (10-20% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....79-85 NEAR 5000 FEET.
70-78 NEAR 7000 FEET.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........14-21%.
24 HR TREND......3% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST AROUND 15 MPH.
MIXING HEIGHT.......10700 FT AGL.
CLIMATOLOGY......70-80TH PERCENTILE.
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....44-54.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........44-54% NEAR 5000 FEET.
35-45% NEAR 7000 FEET.
24 HR TREND......7% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....WEST AROUND 15 MPH.
WEDNESDAY
SKY/WEATHER.........SUNNY (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....78-84 NEAR 5000 FEET.
69-76 NEAR 7000 FEET.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........12-18%.
24 HR TREND......3% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST 15-20 MPH.
MIXING HEIGHT.......8900 FT AGL.
CLIMATOLOGY......40-50TH PERCENTILE.
CLEARING INDEX......890.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S IN THE VALLEYS
AND IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN
THE VALLEYS AND IN THE MID 70S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
FRIDAY
MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 40S IN THE VALLEYS AND IN THE
MID 50S IN THE MOUNTAINS. HIGHS AROUND 80 IN THE VALLEYS AND IN
THE LOWER 70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 40S IN THE VALLEYS AND IN THE LOWER 50S IN THE
MOUNTAINS. HIGHS IN THE LOWER 80S IN THE VALLEYS AND IN THE LOWER
70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 40S IN THE VALLEYS AND IN THE LOWER 50S IN THE
MOUNTAINS. HIGHS IN THE LOWER 80S IN THE VALLEYS AND IN THE LOWER
70S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S IN THE VALLEYS AND
IN THE LOWER 50S IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN THE
VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
=
UTZ496-161215-
COLOR COUNTRY MOUNTAINS-
217 PM MDT MON SEP 15 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....43-53.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........38-48% NEAR 6000 FEET.
32-42% NEAR 8000 FEET.
24 HR TREND......4% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.
TUESDAY
SKY/WEATHER.........SUNNY (10-20% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....77-85 NEAR 6000 FEET.
68-75 NEAR 8000 FEET.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........12-22%.
24 HR TREND......1% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH. GUSTS UP TO 25 MPH
IN THE AFTERNOON.
12K FT MSL WINDS....WEST 10-15 MPH.
MIXING HEIGHT.......11700 FT AGL.
CLIMATOLOGY......80-90TH PERCENTILE.
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....43-53.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........45-55% NEAR 6000 FEET.
37-47% NEAR 8000 FEET.
24 HR TREND......5% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 15 MPH.
WEDNESDAY
SKY/WEATHER.........SUNNY (10-20% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....76-83 NEAR 6000 FEET.
68-74 NEAR 8000 FEET.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........10-18%.
24 HR TREND......2% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST 15-20 MPH.
MIXING HEIGHT.......10700 FT AGL.
CLIMATOLOGY......80-90TH PERCENTILE.
CLEARING INDEX......1000+.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S IN THE VALLEYS
AND IN THE LOWER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN
THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
FRIDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 50S IN THE VALLEYS AND IN THE UPPER 40S IN THE
MOUNTAINS. HIGHS IN THE MID 70S IN THE VALLEYS AND IN THE UPPER
60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 50S IN THE VALLEYS AND IN THE MID 40S IN THE
MOUNTAINS. HIGHS IN THE UPPER 70S IN THE VALLEYS AND IN THE UPPER
60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE LOWER 50S IN THE VALLEYS AND IN THE MID 40S IN THE
MOUNTAINS. HIGHS IN THE UPPER 70S IN THE VALLEYS AND AROUND 70 IN
THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S IN THE VALLEYS AND
IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN THE
VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
=
UTZ497-161215-
MOJAVE DESERT-
217 PM MDT MON SEP 15 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....62-72 NEAR 3000 FEET.
55-65 NEAR 6000 FEET.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........25-35%.
24 HR TREND......2% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 10 MPH.
TUESDAY
SKY/WEATHER.........SUNNY (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....89-95 NEAR 3000 FEET.
75-81 NEAR 6000 FEET.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........10-14% NEAR 3000 FEET.
14-18% NEAR 6000 FEET.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING NORTHWEST AROUND 10
MPH IN THE AFTERNOON.
MIXING HEIGHT.......9600 FT AGL.
CLIMATOLOGY......40-50TH PERCENTILE.
CLEARING INDEX......910.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....63-72 NEAR 3000 FEET.
54-64 NEAR 6000 FEET.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........25-35%.
24 HR TREND......2% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST 10-15 MPH.
WEDNESDAY
SKY/WEATHER.........SUNNY (0-10% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....91-97 NEAR 3000 FEET.
77-84 NEAR 6000 FEET.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........10-14%.
24 HR TREND......2% DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 10 MPH.
MIXING HEIGHT.......11400 FT AGL.
CLIMATOLOGY......60-70TH PERCENTILE.
CLEARING INDEX......1000+.
FORECAST DAYS 3 THROUGH 7
THURSDAY
PARTLY CLOUDY. LOWS IN THE MID 60S IN THE VALLEYS AND
IN THE UPPER 50S IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN THE
VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS. NORTHEAST WINDS
AROUND 15 MPH.
FRIDAY
MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 60S IN THE VALLEYS AND AROUND
60 IN THE MOUNTAINS. HIGHS IN THE UPPER 80S IN THE VALLEYS AND IN
THE MID 70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 60S IN THE VALLEYS AND AROUND 60 IN THE
MOUNTAINS. HIGHS IN THE UPPER 80S IN THE VALLEYS AND IN THE MID
70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 60S IN THE VALLEYS AND
IN THE UPPER 50S IN THE MOUNTAINS. HIGHS AROUND 90 IN THE VALLEYS
AND IN THE UPPER 70S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. LOWS IN THE UPPER 60S IN THE VALLEYS AND
IN THE UPPER 50S IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN THE
VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS.
=
UTZ498-161215-
GRAND STAIRCASE-
217 PM MDT MON SEP 15 2025
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....55-65 NEAR 4000 FEET.
47-57 NEAR 6000 FEET.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........22-32% NEAR 4000 FEET.
27-37% NEAR 6000 FEET.
24 HR TREND......4% DRIER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.
TUESDAY
SKY/WEATHER.........SUNNY (10-20% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....84-92 NEAR 4000 FEET.
78-86 NEAR 6000 FEET.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........9-15%.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......11700 FT AGL.
CLIMATOLOGY......70-80TH PERCENTILE.
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....54-63 NEAR 4000 FEET.
48-58 NEAR 6000 FEET.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........32-42%.
24 HR TREND......4% WETTER.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 15 MPH.
WEDNESDAY
SKY/WEATHER.........SUNNY (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....81-91 NEAR 4000 FEET.
75-85 NEAR 6000 FEET.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........9-17%.
24 HR TREND......1% WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
12K FT MSL WINDS....NORTHWEST AROUND 15 MPH.
MIXING HEIGHT.......10600 FT AGL.
CLIMATOLOGY......40-50TH PERCENTILE.
CLEARING INDEX......880.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S IN THE VALLEYS
AND IN THE LOWER 50S IN THE MOUNTAINS. HIGHS IN THE MID 80S IN
THE VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
FRIDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS AROUND 60 IN THE VALLEYS AND IN THE LOWER 50S IN THE
MOUNTAINS. HIGHS IN THE MID 80S IN THE VALLEYS AND IN THE UPPER
70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 60S IN THE VALLEYS AND IN THE LOWER 50S IN THE
MOUNTAINS. HIGHS IN THE UPPER 80S IN THE VALLEYS AND IN THE UPPER
70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE LOWER 60S IN THE VALLEYS AND IN THE LOWER 50S IN THE
MOUNTAINS. HIGHS IN THE UPPER 80S IN THE VALLEYS AND IN THE UPPER
70S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S IN THE VALLEYS AND
IN THE LOWER 50S IN THE MOUNTAINS. HIGHS IN THE UPPER 80S IN THE
VALLEYS AND AROUND 80 IN THE MOUNTAINS.
=
.8-14 DAY OUTLOOK FOR TUESDAY SEPTEMBER 23 TO MONDAY SEPTEMBER 29
TEMPERATURE... ABOVE NORMAL
PRECIPITATION... NEAR NORMAL
=
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