923
FNUS55 KSLC 211849
FWFSLC
FIRE WEATHER PLANNING FORECAST FOR UTAH
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1249 PM MDT MON SEP 21 2026
..SHOWERS AND STORMS MOVING INTO THE AREA TODAY AND TUESDAY
BROADCAST DISCUSSION
SHOWERS ARE MOVING INTO WESTERN AND SOUTHWESTERN
UTAH TODAY AND WILL SPREAD INTO NORTHERN UTAH OVERNIGHT AND
DEVELOP INTO THUNDERSTORMS ON TUESDAY. THESE PUSH OUT OF THE AREA
BY WEDNESDAY WITH MOSTLY DRY AND STABLE CONDITIONS FOR THE
REMAINDER OF THE WEEK, EXCEPT FOR SOUTHEASTERN UTAH.
DISCUSSION
AN AREA OF LOW PRESSURE IS MOVING INTO THE GREAT BASIN. THIS
IS BRINGING AN INCREASE IN CLOUD COVER AND SHOWERS TO
SOUTHWESTERN UTAH. THIS ACTIVITY WILL GRADUALLY SHIFT NORTH AND
EAST OVERNIGHT WITH SHOWERS AND THUNDERSTORMS DEVELOPING ACROSS
CENTRAL AND NORTHERN UTAH ON TUESDAY. THESE STORMS ON TUESDAY WILL
BE CAPABLE OF PRODUCING GUSTY AND ERRATIC WINDS ALONG WITH
FREQUENT LIGHTNING, SMALL HAIL, AND BRIEF HEAVY RAIN.
THIS ACTIVITY MOVES OUT OF UTAH ON WEDNESDAY, BUT MOISTURE WILL
REMAIN ELEVATED ACROSS THE FOUR CORNERS WITH DIURNAL CONVECTION
POSSIBLE ACROSS SOUTHEASTERN PORTIONS OF UTAH, BUT CONFIDENCE IN
DETAILS REMAIN LOW ON THESE STORMS. THE HEAVIEST PRECIPITATION
LOOKS TO REMAIN ACROSS NEW MEXICO AND COLORADO. OTHERWISE, WINDS
WILL REMAIN LIGHT AND DIURNALLY DRIVEN THROUGH THE WEEK WITH NEAR
NORMAL TEMPERATURES.
***THUNDERSTORMS IMPLY STRONG, GUSTY AND ERRATIC WINDS***
***ALL WINDS ARE 20 FOOT, 10-MINUTE AVERAGES***
UTZ478-221230-
SALT LAKE DESERT-
1249 PM MDT MON SEP 21 2026
TONIGHT
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). NORTH OF I-80,
ISOLATED RAIN SHOWERS. SOUTH OF I-80, SCATTERED
RAIN SHOWERS. ISOLATED THUNDERSTORMS AFTER
2400.
CHANCE LIGHTNING....10%.
CWR.................0% NORTH OF I-80 AND 20% SOUTH OF I-80.
MIN TEMPERATURE.....49-59 NEAR 5000 FEET.
44-51 NEAR 8000 FEET.
24 HR TREND......6 DEGREES WARMER.
MAX HUMIDITY........65-75% NEAR 5000 FEET.
76-86% NEAR 8000 FEET.
24 HR TREND......3% WETTER NEAR 5000 FEET.
16% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 5 MPH BECOMING SOUTH
AFTER MIDNIGHT.
12K FT MSL WINDS....SOUTH 10-15 MPH.
TUESDAY
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). SCATTERED RAIN
SHOWERS. NORTH OF I-80, ISOLATED THUNDERSTORMS
AFTER 1200. SOUTH OF I-80, ISOLATED
THUNDERSTORMS UNTIL 1200. SCATTERED
THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....10% INCREASING TO 30% IN THE AFTERNOON.
CWR.................20% NORTH OF I-80 AND 40% SOUTH OF I-80.
MAX TEMPERATURE.....66-76 NEAR 5000 FEET.
53-62 NEAR 8000 FEET.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........42-52% NEAR 5000 FEET.
57-67% NEAR 8000 FEET.
24 HR TREND......22% WETTER NEAR 5000 FEET.
29% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......SOUTH WINDS 5 TO 10 MPH.
12K FT MSL WINDS....SOUTH 20-25 MPH.
MIXING HEIGHT.......6500 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......530.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (20-30% CLOUD COVER). NORTH
OF I-80, ISOLATED SHOWERS AND THUNDERSTORMS
UNTIL 2400.
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.
CWR.................0%.
MIN TEMPERATURE.....44-54 NEAR 5000 FEET.
43-50 NEAR 8000 FEET.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........74-84% NEAR 5000 FEET.
67-77% NEAR 8000 FEET.
24 HR TREND......11% WETTER NEAR 5000 FEET.
1% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 5 MPH BECOMING SOUTH
AFTER MIDNIGHT.
12K FT MSL WINDS....WEST 20-25 MPH.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER) UNTIL 1200,
THEN SUNNY (10-20% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....69-79 NEAR 5000 FEET.
59-65 NEAR 8000 FEET.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........28-38% NEAR 5000 FEET.
36-46% NEAR 8000 FEET.
24 HR TREND......13% DRIER.
20-FOOT WINDS.......EAST WINDS AROUND 5 MPH.
12K FT MSL WINDS....WEST AROUND 10 MPH IN THE MORNING BECOMING
LIGHT AND VARIABLE.
MIXING HEIGHT.......7000 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......450.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE
UPPER 70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS.
WINDS GENERALLY LESS THAN 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 50S IN THE VALLEYS AND IN
THE LOWER 50S IN THE MOUNTAINS. HIGHS AROUND 80 IN THE VALLEYS
AND IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN
15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 50S IN THE VALLEYS AND
AROUND 50 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. LOWS IN THE MID 50S IN THE VALLEYS AND
AROUND 50 IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN THE VALLEYS
AND IN THE MID 60S IN THE MOUNTAINS.
MONDAY
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 LOWER 70S IN THE VALLEYS AND AROUND 60 IN
THE MOUNTAINS.
=
UTZ479-221230-
WASATCH MOUNTAINS-
1249 PM MDT MON SEP 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MIN TEMPERATURE.....45-55.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........71-81%.
24 HR TREND......2% DRIER.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 5 MPH.
12K FT MSL WINDS....SOUTH 15-20 MPH.
TUESDAY
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). NORTH OF I-80,
ISOLATED THUNDERSTORMS UNTIL 1200. SCATTERED
RAIN SHOWERS. SCATTERED THUNDERSTORMS AFTER
1200. SOUTH OF I-80, SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS UNTIL 1200, THEN
NUMEROUS RAIN SHOWERS AND SCATTERED
THUNDERSTORMS.
CHANCE LIGHTNING....10% INCREASING TO 30% IN THE AFTERNOON.
CWR.................30% NORTH OF I-80 AND 60% SOUTH OF I-80.
MAX TEMPERATURE.....65-75 NEAR 5000 FEET.
56-66 NEAR 8000 FEET.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........47-57% NEAR 5000 FEET.
57-67% NEAR 8000 FEET.
24 HR TREND......27% WETTER NEAR 5000 FEET.
34% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH.
12K FT MSL WINDS....SOUTH 20-25 MPH.
MIXING HEIGHT.......6000 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......770.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (45-55% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (25-35% CLOUD COVER). NORTH
OF I-80, SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS UNTIL 2400. SOUTH OF I-80,
ISOLATED SHOWERS AND THUNDERSTORMS UNTIL 2400.
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.
CWR.................10%.
MIN TEMPERATURE.....41-51.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........80-90% NEAR 5000 FEET.
73-83% NEAR 8000 FEET.
24 HR TREND......11% WETTER.
20-FOOT WINDS.......SOUTH WINDS AROUND 5 MPH.
12K FT MSL WINDS....WEST AROUND 25 MPH.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....69-78 NEAR 5000 FEET.
60-70 NEAR 8000 FEET.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........30-40% NEAR 5000 FEET.
35-45% NEAR 8000 FEET.
24 HR TREND......18% DRIER.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 5 MPH BECOMING WEST IN
THE AFTERNOON.
12K FT MSL WINDS....WEST 10-15 MPH.
MIXING HEIGHT.......7500 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......570.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID
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. HIGHS IN THE
UPPER 70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS.
WINDS GENERALLY LESS THAN 15 MPH.
SATURDAY
MOSTLY CLEAR. 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.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 40S. HIGHS IN THE MID 70S IN THE VALLEYS AND IN THE
LOWER 60S IN THE MOUNTAINS.
MONDAY
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS AROUND 70 IN THE
VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS.
=
UTZ480-221230-
UINTA MOUNTAINS-
1249 PM MDT MON SEP 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MIN TEMPERATURE.....44-51 NEAR 7000 FEET.
35-45 NEAR 9000 FEET.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........69-79% NEAR 7000 FEET.
76-86% NEAR 9000 FEET.
24 HR TREND......UNCHANGED NEAR 7000 FEET.
5% DRIER NEAR 9000 FEET.
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH.
12K FT MSL WINDS....SOUTH AROUND 10 MPH BECOMING SOUTHWEST AROUND
20 MPH AFTER MIDNIGHT.
TUESDAY
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). SCATTERED RAIN
SHOWERS AND ISOLATED THUNDERSTORMS UNTIL 1200,
THEN NUMEROUS RAIN SHOWERS AND SCATTERED
THUNDERSTORMS.
CHANCE LIGHTNING....10% INCREASING TO 30% IN THE AFTERNOON.
CWR.................60%.
MAX TEMPERATURE.....64-70 NEAR 7000 FEET.
54-62 NEAR 9000 FEET.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........53-57% NEAR 7000 FEET.
57-67% NEAR 9000 FEET.
24 HR TREND......33% WETTER.
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH.
12K FT MSL WINDS....SOUTH 20-25 MPH.
MIXING HEIGHT.......6200 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (50-60% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (25-35% CLOUD COVER).
SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS UNTIL 2400.
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.
CWR.................10%.
MIN TEMPERATURE.....39-47 NEAR 7000 FEET.
32-42 NEAR 9000 FEET.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........79-89% NEAR 7000 FEET.
83-93% NEAR 9000 FEET.
24 HR TREND......10% WETTER.
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH.
12K FT MSL WINDS....SOUTHWEST 20-25 MPH.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER) UNTIL 1200,
THEN PARTLY SUNNY (50-60% CLOUD COVER).
CHANCE LIGHTNING....0% INCREASING TO 10% IN THE AFTERNOON.
CWR.................0%.
MAX TEMPERATURE.....66-72 NEAR 7000 FEET.
58-64 NEAR 9000 FEET.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........34-38% NEAR 7000 FEET.
37-47% NEAR 9000 FEET.
24 HR TREND......20% DRIER.
20-FOOT WINDS.......SOUTH WINDS AROUND 5 MPH BECOMING NORTHWEST
WITH GUSTS TO AROUND 20 MPH IN THE AFTERNOON.
12K FT MSL WINDS....WEST AROUND 15 MPH IN THE MORNING BECOMING
LIGHT AND VARIABLE.
MIXING HEIGHT.......6700 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......670.
FORECAST DAYS 3 THROUGH 7
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
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 LOWER
60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
FRIDAY
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.
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 AROUND 70 IN THE VALLEYS AND IN
THE LOWER 60S IN THE MOUNTAINS.
MONDAY
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 MID 60S IN THE VALLEYS AND IN
THE UPPER 50S IN THE MOUNTAINS.
=
UTZ481-221230-
WESTERN ASHLEY NATIONAL FOREST-
1249 PM MDT MON SEP 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MIN TEMPERATURE.....45-51 NEAR 7000 FEET.
36-43 NEAR 10000 FEET.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........69-79% NEAR 7000 FEET.
78-88% NEAR 10000 FEET.
24 HR TREND......7% WETTER NEAR 7000 FEET.
1% WETTER NEAR 10000 FEET.
20-FOOT WINDS.......SOUTH WINDS AROUND 5 MPH.
12K FT MSL WINDS....SOUTH AROUND 10 MPH BECOMING SOUTHWEST AROUND
20 MPH AFTER MIDNIGHT.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). SCATTERED
RAIN SHOWERS, SNOW SHOWERS AND ISOLATED
THUNDERSTORMS UNTIL 1200, THEN NUMEROUS RAIN
SHOWERS, SCATTERED THUNDERSTORMS AND NUMEROUS
SNOW SHOWERS.
CHANCE LIGHTNING....10% INCREASING TO 40% IN THE AFTERNOON.
CWR.................70%.
MAX TEMPERATURE.....60-66 NEAR 7000 FEET.
49-55 NEAR 10000 FEET.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........56-66% NEAR 7000 FEET.
67-77% NEAR 10000 FEET.
24 HR TREND......35% WETTER.
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
30 MPH.
12K FT MSL WINDS....SOUTH 20-25 MPH.
MIXING HEIGHT.......5000 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......880.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (35-45% CLOUD COVER).
SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS UNTIL 2400.
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.
CWR.................10%.
MIN TEMPERATURE.....41-47 NEAR 7000 FEET.
32-39 NEAR 10000 FEET.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........70-80% NEAR 7000 FEET.
77-87% NEAR 10000 FEET.
24 HR TREND......1% WETTER.
20-FOOT WINDS.......WEST WINDS 5 TO 10 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 20 MPH.
WEDNESDAY
SKY/WEATHER.........PARTLY SUNNY (55-65% CLOUD COVER). ISOLATED
SHOWERS AND THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....0% INCREASING TO 20% IN THE AFTERNOON.
CWR.................0%.
MAX TEMPERATURE.....65-71 NEAR 7000 FEET.
52-58 NEAR 10000 FEET.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........34-44% NEAR 7000 FEET.
45-55% NEAR 10000 FEET.
24 HR TREND......24% DRIER.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 5 MPH BECOMING SOUTHWEST
IN THE AFTERNOON.
12K FT MSL WINDS....WEST AROUND 15 MPH IN THE MORNING BECOMING
LIGHT AND VARIABLE.
MIXING HEIGHT.......7300 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......620.
FORECAST DAYS 3 THROUGH 7
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S IN THE VALLEYS AND IN THE UPPER 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. SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 40S IN THE VALLEYS AND IN THE
UPPER 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.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 40S IN THE VALLEYS AND AROUND 40 IN THE
MOUNTAINS. HIGHS IN THE MID 60S IN THE VALLEYS AND IN THE MID 50S
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 AROUND
40 IN THE MOUNTAINS. HIGHS IN THE MID 60S IN THE VALLEYS AND IN
THE LOWER 50S IN THE MOUNTAINS.
MONDAY
MOSTLY CLOUDY. SCATTERED RAIN SHOWERS, SNOW SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS IN THE MID 40S IN THE VALLEYS AND IN
THE UPPER 30S IN THE MOUNTAINS. HIGHS IN THE LOWER 60S IN THE
VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS.
=
UTZ482-221230-
WESTERN UINTAH BASIN-
1249 PM MDT MON SEP 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MIN TEMPERATURE.....43-53.
24 HR TREND......6 DEGREES WARMER.
MAX HUMIDITY........65-75% NEAR 6000 FEET.
70-80% NEAR 8000 FEET.
24 HR TREND......7% DRIER NEAR 6000 FEET.
6% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......EAST WINDS AROUND 5 MPH BECOMING NORTHWEST
AFTER MIDNIGHT.
12K FT MSL WINDS....SOUTHWEST AROUND 10 MPH BECOMING AROUND 20 MPH
AFTER MIDNIGHT.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (60-70% CLOUD COVER) UNTIL 1200,
THEN CLOUDY (85-95% CLOUD COVER). ISOLATED
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....10% INCREASING TO 40% IN THE AFTERNOON.
CWR.................50%.
MAX TEMPERATURE.....67-73 NEAR 6000 FEET.
57-63 NEAR 8000 FEET.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........48-58% NEAR 6000 FEET.
56-66% NEAR 8000 FEET.
24 HR TREND......16% WETTER NEAR 6000 FEET.
26% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 5 MPH BECOMING SOUTHWEST
WITH GUSTS TO AROUND 20 MPH IN THE AFTERNOON.
12K FT MSL WINDS....SOUTH AROUND 25 MPH.
MIXING HEIGHT.......6000 FT AGL (30-40TH PERCENTILE).
CLEARING INDEX......830.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (35-45% CLOUD COVER).
SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS UNTIL 2400.
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.
CWR.................10%.
MIN TEMPERATURE.....39-49.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........77-87%.
24 HR TREND......12% WETTER NEAR 6000 FEET.
1% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 5 MPH.
12K FT MSL WINDS....SOUTHWEST 25-30 MPH.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY (35-45% CLOUD COVER) UNTIL 1200,
THEN PARTLY SUNNY (45-55% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....68-74 NEAR 6000 FEET.
61-67 NEAR 8000 FEET.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........41-48% NEAR 6000 FEET.
34-44% NEAR 8000 FEET.
24 HR TREND......8% DRIER NEAR 6000 FEET.
23% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 5 MPH BECOMING SOUTHEAST
IN THE AFTERNOON.
12K FT MSL WINDS....WEST 10-15 MPH.
MIXING HEIGHT.......7400 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......530.
FORECAST DAYS 3 THROUGH 7
THURSDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE
LOWER 70S IN THE VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS.
WINDS GENERALLY LESS THAN 15 MPH.
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 40S. 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. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S IN THE VALLEYS AND
IN THE MID 60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN
15 MPH.
SUNDAY
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S IN
THE VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS.
MONDAY
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S IN
THE VALLEYS AND IN THE LOWER 60S IN THE MOUNTAINS.
=
UTZ483-221230-
SOUTHERN ASHLEY NATIONAL FOREST-
1249 PM MDT MON SEP 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MIN TEMPERATURE.....48-54 NEAR 7000 FEET.
44-50 NEAR 9000 FEET.
24 HR TREND......5 DEGREES WARMER.
MAX HUMIDITY........63-69% NEAR 7000 FEET.
68-78% NEAR 9000 FEET.
24 HR TREND......4% WETTER.
20-FOOT WINDS.......SOUTH WINDS AROUND 5 MPH.
12K FT MSL WINDS....SOUTH AROUND 15 MPH BECOMING AROUND 25 MPH
AFTER MIDNIGHT.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (60-70% CLOUD COVER) UNTIL 1200,
THEN CLOUDY (85-95% CLOUD COVER). SCATTERED
RAIN SHOWERS AND ISOLATED THUNDERSTORMS UNTIL
1200, THEN NUMEROUS RAIN SHOWERS AND SCATTERED
THUNDERSTORMS.
CHANCE LIGHTNING....10% INCREASING TO 40% IN THE AFTERNOON.
CWR.................60%.
MAX TEMPERATURE.....64-70 NEAR 7000 FEET.
54-60 NEAR 9000 FEET.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........49-53% NEAR 7000 FEET.
57-67% NEAR 9000 FEET.
24 HR TREND......18% WETTER NEAR 7000 FEET.
25% WETTER NEAR 9000 FEET.
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH. GUSTS UP TO 25 MPH
IN THE AFTERNOON.
12K FT MSL WINDS....SOUTH 25-30 MPH.
MIXING HEIGHT.......6900 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (30-40% CLOUD COVER).
SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS UNTIL 2400.
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.
CWR.................10%.
MIN TEMPERATURE.....39-49.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........71-78% NEAR 7000 FEET.
74-84% NEAR 9000 FEET.
24 HR TREND......6% WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 5 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 25 MPH.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY (45-55% CLOUD COVER) UNTIL 1200,
THEN PARTLY SUNNY (55-65% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....65-71 NEAR 7000 FEET.
56-62 NEAR 9000 FEET.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........37-47% NEAR 7000 FEET.
44-54% NEAR 9000 FEET.
24 HR TREND......UNCHANGED NEAR 7000 FEET.
17% DRIER NEAR 9000 FEET.
20-FOOT WINDS.......WEST WINDS AROUND 5 MPH BECOMING SOUTH IN THE
AFTERNOON.
12K FT MSL WINDS....WEST 10-15 MPH.
MIXING HEIGHT.......8300 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......670.
FORECAST DAYS 3 THROUGH 7
THURSDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S IN THE VALLEYS
AND IN THE MID 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN
THE VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
FRIDAY
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 60S IN THE VALLEYS AND IN THE UPPER
50S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S IN THE VALLEYS
AND IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN
THE VALLEYS AND IN THE UPPER 50S 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 UPPER 60S IN THE VALLEYS AND IN THE UPPER
50S IN THE MOUNTAINS.
MONDAY
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS AROUND 50 IN THE VALLEYS AND IN THE MID 40S
IN THE MOUNTAINS. HIGHS IN THE MID 60S IN THE VALLEYS AND IN THE
MID 50S IN THE MOUNTAINS.
=
UTZ484-221230-
TAVAPUTS PLATEAU-
1249 PM MDT MON SEP 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MIN TEMPERATURE.....50-56 NEAR 6000 FEET.
46-54 NEAR 8000 FEET.
24 HR TREND......5 DEGREES WARMER.
MAX HUMIDITY........58-68%.
24 HR TREND......6% DRIER NEAR 6000 FEET.
1% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......SOUTH WINDS AROUND 5 MPH.
12K FT MSL WINDS....SOUTH AROUND 15 MPH BECOMING AROUND 25 MPH
AFTER MIDNIGHT.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (60-70% CLOUD COVER) UNTIL 1200,
THEN CLOUDY (85-95% CLOUD COVER). ISOLATED
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....10% INCREASING TO 30% IN THE AFTERNOON.
CWR.................40%.
MAX TEMPERATURE.....70-76 NEAR 6000 FEET.
59-67 NEAR 8000 FEET.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........38-48% NEAR 6000 FEET.
43-53% NEAR 8000 FEET.
24 HR TREND......11% WETTER NEAR 6000 FEET.
19% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......SOUTH WINDS 5 TO 10 MPH. GUSTS UP TO 25 MPH IN
THE AFTERNOON.
12K FT MSL WINDS....SOUTH 25-30 MPH.
MIXING HEIGHT.......7300 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (45-55% CLOUD COVER).
SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS UNTIL 2400.
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.
CWR.................30%.
MIN TEMPERATURE.....42-52.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........72-82%.
24 HR TREND......15% WETTER NEAR 6000 FEET.
9% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......WEST WINDS 5 TO 10 MPH. GUSTS UP TO 20 MPH IN
THE EVENING.
12K FT MSL WINDS....SOUTHWEST 25-30 MPH.
WEDNESDAY
SKY/WEATHER.........PARTLY SUNNY (50-60% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MAX TEMPERATURE.....70-76 NEAR 6000 FEET.
62-68 NEAR 8000 FEET.
24 HR TREND......4 DEGREES COOLER NEAR 6000 FEET.
3 DEGREES WARMER NEAR 8000 FEET.
MIN HUMIDITY........38-48%.
24 HR TREND......15% WETTER NEAR 6000 FEET.
10% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......WEST WINDS AROUND 5 MPH BECOMING SOUTHEAST IN
THE AFTERNOON.
12K FT MSL WINDS....WEST 10-15 MPH.
MIXING HEIGHT.......7500 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......540.
FORECAST DAYS 3 THROUGH 7
THURSDAY
PARTLY CLOUDY. 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 MID 60S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
FRIDAY
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 MID 70S IN THE VALLEYS AND IN THE LOWER
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 MID 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 AROUND 50 IN THE MOUNTAINS.
HIGHS IN THE MID 70S IN THE VALLEYS AND IN THE LOWER 60S IN THE
MOUNTAINS.
MONDAY
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED
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.
=
UTZ488-221230-
MANTI NATIONAL FOREST-
1249 PM MDT MON SEP 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER). ISOLATED
RAIN SHOWERS. ISOLATED THUNDERSTORMS AFTER
2400.
CHANCE LIGHTNING....10%.
CWR.................10%.
MIN TEMPERATURE.....45-54 NEAR 6500 FEET.
40-50 NEAR 8500 FEET.
24 HR TREND......4 DEGREES WARMER.
MAX HUMIDITY........64-74% NEAR 6500 FEET.
69-79% NEAR 8500 FEET.
24 HR TREND......22% WETTER.
20-FOOT WINDS.......SOUTH WINDS 5 TO 10 MPH.
12K FT MSL WINDS....SOUTH AROUND 15 MPH BECOMING AROUND 25 MPH
AFTER MIDNIGHT.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). SCATTERED
RAIN SHOWERS AND ISOLATED THUNDERSTORMS UNTIL
1200, THEN NUMEROUS RAIN SHOWERS AND SCATTERED
THUNDERSTORMS.
CHANCE LIGHTNING....10% INCREASING TO 40% IN THE AFTERNOON.
CWR.................60%.
MAX TEMPERATURE.....64-74 NEAR 6500 FEET.
55-63 NEAR 8500 FEET.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........42-52% NEAR 6500 FEET.
52-62% NEAR 8500 FEET.
24 HR TREND......22% WETTER NEAR 6500 FEET.
30% WETTER NEAR 8500 FEET.
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH.
12K FT MSL WINDS....SOUTH AROUND 25 MPH.
MIXING HEIGHT.......5900 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......860.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (50-60% CLOUD COVER) UNTIL 2400,
THEN PARTLY CLOUDY (25-35% CLOUD COVER).
ISOLATED SHOWERS AND THUNDERSTORMS UNTIL 2400.
CHANCE LIGHTNING....20% DECREASING TO 0% AFTER MIDNIGHT.
CWR.................10%.
MIN TEMPERATURE.....41-51 NEAR 6500 FEET.
37-47 NEAR 8500 FEET.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........72-82%.
24 HR TREND......2% DRIER.
20-FOOT WINDS.......WEST WINDS AROUND 5 MPH.
12K FT MSL WINDS....SOUTHWEST AROUND 20 MPH.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40% CLOUD COVER) UNTIL 1200,
THEN PARTLY SUNNY (45-55% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....67-77 NEAR 6500 FEET.
58-66 NEAR 8500 FEET.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........31-41% NEAR 6500 FEET.
35-45% NEAR 8500 FEET.
24 HR TREND......5% DRIER NEAR 6500 FEET.
20% DRIER NEAR 8500 FEET.
20-FOOT WINDS.......SOUTH WINDS AROUND 5 MPH.
12K FT MSL WINDS....WEST AROUND 10 MPH IN THE MORNING BECOMING
LIGHT AND VARIABLE.
MIXING HEIGHT.......7700 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......550.
FORECAST DAYS 3 THROUGH 7
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
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.
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. 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 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.
SUNDAY
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 LOWER 70S IN THE VALLEYS AND IN THE LOWER
60S IN THE MOUNTAINS.
MONDAY
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 40S IN THE VALLEYS AND IN THE
MID 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 60S IN THE VALLEYS
AND AROUND 60 IN THE MOUNTAINS.
=
UTZ489-221230-
SAN RAFAEL SWELL-
1249 PM MDT MON SEP 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65% CLOUD COVER). ISOLATED
SHOWERS AND THUNDERSTORMS AFTER 2400.
CHANCE LIGHTNING....10%.
CWR.................0%.
MIN TEMPERATURE.....55-61 NEAR 5000 FEET.
49-57 NEAR 7000 FEET.
24 HR TREND......5 DEGREES WARMER.
MAX HUMIDITY........47-57% NEAR 5000 FEET.
52-62% NEAR 7000 FEET.
24 HR TREND......5% DRIER NEAR 5000 FEET.
5% WETTER NEAR 7000 FEET.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 5 MPH BECOMING WEST
AFTER MIDNIGHT.
12K FT MSL WINDS....SOUTH AROUND 15 MPH BECOMING AROUND 25 MPH
AFTER MIDNIGHT.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER). ISOLATED
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....10% INCREASING TO 30% IN THE AFTERNOON.
CWR.................30%.
MAX TEMPERATURE.....78-84 NEAR 5000 FEET.
65-72 NEAR 7000 FEET.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........24-34% NEAR 5000 FEET.
35-45% NEAR 7000 FEET.
24 HR TREND......8% WETTER NEAR 5000 FEET.
14% WETTER NEAR 7000 FEET.
20-FOOT WINDS.......SOUTHEAST WINDS 5 TO 10 MPH. GUSTS UP TO 25 MPH
IN THE AFTERNOON.
12K FT MSL WINDS....SOUTH AROUND 30 MPH.
MIXING HEIGHT.......7800 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65% CLOUD COVER). ISOLATED
SHOWERS AND THUNDERSTORMS UNTIL 2400.
CHANCE LIGHTNING....20% DECREASING TO 10% AFTER MIDNIGHT.
CWR.................10%.
MIN TEMPERATURE.....53-59 NEAR 5000 FEET.
44-54 NEAR 7000 FEET.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........65-75%.
24 HR TREND......17% WETTER NEAR 5000 FEET.
9% WETTER NEAR 7000 FEET.
20-FOOT WINDS.......NORTH WINDS 5 TO 10 MPH.
12K FT MSL WINDS....SOUTHWEST 20-25 MPH.
WEDNESDAY
SKY/WEATHER.........PARTLY SUNNY (55-65% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MAX TEMPERATURE.....76-82 NEAR 5000 FEET.
66-72 NEAR 7000 FEET.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........30-38% NEAR 5000 FEET.
36-46% NEAR 7000 FEET.
24 HR TREND......2% DRIER.
20-FOOT WINDS.......NORTH WINDS AROUND 5 MPH BECOMING SOUTHEAST IN
THE AFTERNOON.
12K FT MSL WINDS....WEST AROUND 10 MPH IN THE MORNING BECOMING
LIGHT AND VARIABLE.
MIXING HEIGHT.......7000 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......410.
FORECAST DAYS 3 THROUGH 7
THURSDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. 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. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE MID 50S. HIGHS IN THE UPPER 70S IN THE VALLEYS AND IN THE
UPPER 60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE
LOWER 80S IN THE VALLEYS AND AROUND 70 IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE MID 50S. HIGHS AROUND 80 IN THE VALLEYS AND AROUND 70 IN
THE MOUNTAINS.
MONDAY
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 70S IN THE
VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS.
=
UTZ492-221230-
CENTRAL UTAH WEST DESERT-
1249 PM MDT MON SEP 21 2026
TONIGHT
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). SCATTERED RAIN
SHOWERS UNTIL 2400. ISOLATED THUNDERSTORMS.
NUMEROUS RAIN SHOWERS AFTER 2400.
CHANCE LIGHTNING....20%.
CWR.................60%.
MIN TEMPERATURE.....48-57 NEAR 5000 FEET.
42-52 NEAR 8000 FEET.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........76-86%.
24 HR TREND......27% WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH.
12K FT MSL WINDS....SOUTH AROUND 15 MPH BECOMING AROUND 25 MPH
AFTER MIDNIGHT.
TUESDAY
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). ISOLATED
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....10% INCREASING TO 30% IN THE AFTERNOON.
CWR.................30%.
MAX TEMPERATURE.....73-80 NEAR 5000 FEET.
60-66 NEAR 8000 FEET.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........29-39% NEAR 5000 FEET.
42-52% NEAR 8000 FEET.
24 HR TREND......15% WETTER NEAR 5000 FEET.
26% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 5 MPH BECOMING SOUTHWEST
IN THE AFTERNOON.
12K FT MSL WINDS....SOUTHWEST AROUND 25 MPH.
MIXING HEIGHT.......8000 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......970.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER).
CHANCE LIGHTNING....10% DECREASING TO 0% AFTER MIDNIGHT.
CWR.................0%.
MIN TEMPERATURE.....45-55 NEAR 5000 FEET.
40-50 NEAR 8000 FEET.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........71-81%.
24 HR TREND......8% DRIER.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 5 MPH BECOMING NORTHEAST
AFTER MIDNIGHT.
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY (20-30% CLOUD COVER) UNTIL 1200,
THEN SUNNY (15-25% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....77-83 NEAR 5000 FEET.
63-69 NEAR 8000 FEET.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........18-28% NEAR 5000 FEET.
27-37% NEAR 8000 FEET.
24 HR TREND......12% DRIER NEAR 5000 FEET.
28% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......EAST WINDS AROUND 5 MPH BECOMING NORTH IN THE
AFTERNOON.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......8000 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......620.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. 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.
FRIDAY
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. WINDS GENERALLY LESS THAN
15 MPH.
SATURDAY
MOSTLY CLEAR. 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 UPPER 60S IN THE MOUNTAINS. WINDS GENERALLY
LESS THAN 15 MPH.
SUNDAY
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.
MONDAY
PARTLY CLOUDY. ISOLATED RAIN SHOWERS. 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 LOWER 60S IN THE
MOUNTAINS.
=
UTZ493-221230-
CENTRAL UTAH MOUNTAINS-
1249 PM MDT MON SEP 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). SCATTERED
RAIN SHOWERS AND ISOLATED THUNDERSTORMS.
CHANCE LIGHTNING....20%.
CWR.................20%.
MIN TEMPERATURE.....48-54 NEAR 5000 FEET.
41-51 NEAR 8000 FEET.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........73-79% NEAR 5000 FEET.
75-85% NEAR 8000 FEET.
24 HR TREND......19% WETTER NEAR 5000 FEET.
26% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......SOUTH WINDS 5 TO 10 MPH.
12K FT MSL WINDS....SOUTH 20-25 MPH.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). ISOLATED
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....20% INCREASING TO 30% IN THE AFTERNOON.
CWR.................40%.
MAX TEMPERATURE.....76-82 NEAR 5000 FEET.
61-68 NEAR 8000 FEET.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........35-39% NEAR 5000 FEET.
40-50% NEAR 8000 FEET.
24 HR TREND......16% WETTER.
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
30 MPH.
12K FT MSL WINDS....SOUTH 25-30 MPH.
MIXING HEIGHT.......8600 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MIN TEMPERATURE.....44-50 NEAR 5000 FEET.
39-49 NEAR 8000 FEET.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........69-79%.
24 HR TREND......10% DRIER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH BECOMING SOUTH AFTER
MIDNIGHT.
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY (45-55% CLOUD COVER) UNTIL 1200,
THEN PARTLY SUNNY (55-65% CLOUD COVER).
SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....0% INCREASING TO 20% IN THE AFTERNOON.
CWR.................10%.
MAX TEMPERATURE.....78-84 NEAR 5000 FEET.
61-71 NEAR 8000 FEET.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........24-28% NEAR 5000 FEET.
34-44% NEAR 8000 FEET.
24 HR TREND......10% DRIER NEAR 5000 FEET.
1% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 5 MPH BECOMING NORTHEAST
IN THE AFTERNOON.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......9000 FT AGL (60-70TH PERCENTILE).
CLEARING INDEX......690.
FORECAST DAYS 3 THROUGH 7
THURSDAY
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED
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.
FRIDAY
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED
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 IN THE LOWER 80S 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 LOWER 80S IN THE VALLEYS AND IN
THE UPPER 60S IN THE MOUNTAINS.
MONDAY
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.
=
UTZ494-221230-
HENRY MOUNTAINS-
1249 PM MDT MON SEP 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER). ISOLATED
SHOWERS AND THUNDERSTORMS AFTER 2400.
CHANCE LIGHTNING....10%.
CWR.................0%.
MIN TEMPERATURE.....55-62 NEAR 5000 FEET.
50-56 NEAR 8000 FEET.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........43-53% NEAR 5000 FEET.
51-61% NEAR 8000 FEET.
24 HR TREND......7% WETTER NEAR 5000 FEET.
15% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......SOUTH WINDS 5 TO 10 MPH.
12K FT MSL WINDS....SOUTH 20-25 MPH.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (55-65% CLOUD COVER). ISOLATED
RAIN SHOWERS UNTIL 1200. ISOLATED
THUNDERSTORMS. SCATTERED RAIN SHOWERS AFTER
1200.
CHANCE LIGHTNING....10% INCREASING TO 30% IN THE AFTERNOON.
CWR.................20%.
MAX TEMPERATURE.....79-85 NEAR 5000 FEET.
63-73 NEAR 8000 FEET.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........21-27% NEAR 5000 FEET.
33-43% NEAR 8000 FEET.
24 HR TREND......8% WETTER.
20-FOOT WINDS.......SOUTH WINDS AROUND 5 MPH BECOMING AROUND 15 MPH
IN THE AFTERNOON.
12K FT MSL WINDS....SOUTH AROUND 30 MPH.
MIXING HEIGHT.......9200 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MIN TEMPERATURE.....53-62 NEAR 5000 FEET.
48-54 NEAR 8000 FEET.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........61-71%.
24 HR TREND......12% WETTER.
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH BECOMING NORTH AFTER
MIDNIGHT.
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.
WEDNESDAY
SKY/WEATHER.........PARTLY SUNNY (60-70% CLOUD COVER). ISOLATED
SHOWERS AND THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....10% INCREASING TO 20% IN THE AFTERNOON.
CWR.................0%.
MAX TEMPERATURE.....76-82 NEAR 5000 FEET.
61-71 NEAR 8000 FEET.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........27-33% NEAR 5000 FEET.
42-52% NEAR 8000 FEET.
24 HR TREND......3% WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 5 MPH BECOMING SOUTHEAST IN
THE AFTERNOON.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......7300 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......470.
FORECAST DAYS 3 THROUGH 7
THURSDAY
PARTLY CLOUDY. ISOLATED RAIN SHOWERS. LOWS IN THE
UPPER 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.
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 50S IN THE VALLEYS AND IN THE LOWER 50S IN THE
MOUNTAINS. 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 UPPER 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.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
AROUND 60 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.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 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.
=
UTZ495-221230-
COLOR COUNTRY WEST DESERT-
1249 PM MDT MON SEP 21 2026
TONIGHT
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). SCATTERED SHOWERS
AND THUNDERSTORMS UNTIL 2400, THEN NUMEROUS
RAIN SHOWERS AND ISOLATED THUNDERSTORMS.
CHANCE LIGHTNING....30%.
CWR.................50%.
MIN TEMPERATURE.....45-55.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........83-93% NEAR 5000 FEET.
75-85% NEAR 7000 FEET.
24 HR TREND......46% WETTER.
20-FOOT WINDS.......NORTH WINDS 5 TO 10 MPH.
12K FT MSL WINDS....SOUTH 25-30 MPH.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (60-70% CLOUD COVER). SCATTERED
RAIN SHOWERS AND ISOLATED THUNDERSTORMS.
CHANCE LIGHTNING....20%.
CWR.................20%.
MAX TEMPERATURE.....76-82 NEAR 5000 FEET.
66-72 NEAR 7000 FEET.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........24-28% NEAR 5000 FEET.
27-37% NEAR 7000 FEET.
24 HR TREND......6% WETTER.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 5 MPH BECOMING SOUTHWEST
WITH GUSTS TO AROUND 25 MPH IN THE AFTERNOON.
12K FT MSL WINDS....SOUTH 25-30 MPH.
MIXING HEIGHT.......9500 FT AGL (60-70TH PERCENTILE).
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....45-55.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........64-74% NEAR 5000 FEET.
54-64% NEAR 7000 FEET.
24 HR TREND......21% DRIER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH BECOMING NORTH AFTER
MIDNIGHT.
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY (25-35% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....78-84 NEAR 5000 FEET.
69-75 NEAR 7000 FEET.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........19-25% NEAR 5000 FEET.
21-31% NEAR 7000 FEET.
24 HR TREND......3% DRIER.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 5 MPH.
12K FT MSL WINDS....SOUTH AROUND 10 MPH IN THE MORNING BECOMING
LIGHT AND VARIABLE.
MIXING HEIGHT.......8700 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......720.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. 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.
FRIDAY
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.
SATURDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 80S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
SOUTH WINDS AROUND 15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 80S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE LOWER 50S. HIGHS IN THE UPPER 70S IN THE VALLEYS AND
AROUND 70 IN THE MOUNTAINS.
=
UTZ496-221230-
COLOR COUNTRY MOUNTAINS-
1249 PM MDT MON SEP 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). SCATTERED
RAIN SHOWERS AND ISOLATED THUNDERSTORMS.
CHANCE LIGHTNING....20%.
CWR.................20%.
MIN TEMPERATURE.....46-56.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........72-82% NEAR 6000 FEET.
78-88% NEAR 8000 FEET.
24 HR TREND......34% WETTER NEAR 6000 FEET.
45% WETTER NEAR 8000 FEET.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 5 MPH. GUSTS UP TO 20
MPH IN THE EVENING.
12K FT MSL WINDS....SOUTH 20-25 MPH.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (65-75% CLOUD COVER). ISOLATED
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....20% INCREASING TO 30% IN THE AFTERNOON.
CWR.................20%.
MAX TEMPERATURE.....71-78 NEAR 6000 FEET.
62-68 NEAR 8000 FEET.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........26-36% NEAR 6000 FEET.
30-40% NEAR 8000 FEET.
24 HR TREND......4% WETTER.
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH WITH GUSTS TO AROUND
30 MPH.
12K FT MSL WINDS....SOUTH 25-30 MPH.
MIXING HEIGHT.......9200 FT AGL (60-70TH PERCENTILE).
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50% CLOUD COVER) UNTIL 2400,
THEN MOSTLY CLOUDY (50-60% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....44-54.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........65-75%.
24 HR TREND......10% DRIER NEAR 6000 FEET.
18% DRIER NEAR 8000 FEET.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH BECOMING
NORTHEAST AFTER MIDNIGHT.
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.
WEDNESDAY
SKY/WEATHER.........PARTLY SUNNY (55-65% CLOUD COVER). ISOLATED
SHOWERS AND THUNDERSTORMS AFTER 1200.
CHANCE LIGHTNING....0% INCREASING TO 20% IN THE AFTERNOON.
CWR.................0%.
MAX TEMPERATURE.....73-79 NEAR 6000 FEET.
64-71 NEAR 8000 FEET.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........26-36% NEAR 6000 FEET.
32-42% NEAR 8000 FEET.
24 HR TREND......3% WETTER.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 5 MPH BECOMING SOUTH IN
THE AFTERNOON.
12K FT MSL WINDS....LIGHT AND VARIABLE.
MIXING HEIGHT.......9400 FT AGL (60-70TH PERCENTILE).
CLEARING INDEX......690.
FORECAST DAYS 3 THROUGH 7
THURSDAY
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED
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 MID 60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN
15 MPH.
FRIDAY
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED
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 MID 60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN
15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 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.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE MID 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.
MONDAY
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.
=
UTZ497-221230-
MOJAVE DESERT-
1249 PM MDT MON SEP 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). SCATTERED
THUNDERSTORMS UNTIL 2400. SCATTERED RAIN
SHOWERS. ISOLATED THUNDERSTORMS AFTER 2400.
CHANCE LIGHTNING....20%.
CWR.................20%.
MIN TEMPERATURE.....62-71 NEAR 3000 FEET.
52-62 NEAR 6000 FEET.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........55-65% NEAR 3000 FEET.
69-79% NEAR 6000 FEET.
24 HR TREND......38% WETTER NEAR 3000 FEET.
46% WETTER NEAR 6000 FEET.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH BECOMING
NORTHEAST AFTER MIDNIGHT.
12K FT MSL WINDS....SOUTH AROUND 30 MPH.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (65-75% CLOUD COVER) UNTIL 1200,
THEN SUNNY (20-30% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MAX TEMPERATURE.....84-91 NEAR 3000 FEET.
70-77 NEAR 6000 FEET.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........18-22% NEAR 3000 FEET.
24-30% NEAR 6000 FEET.
24 HR TREND......1% WETTER.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 10 MPH BECOMING
SOUTHWEST IN THE AFTERNOON.
12K FT MSL WINDS....SOUTH 25-30 MPH.
MIXING HEIGHT.......9700 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MIN TEMPERATURE.....61-71 NEAR 3000 FEET.
52-61 NEAR 6000 FEET.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........34-44% NEAR 3000 FEET.
45-55% NEAR 6000 FEET.
24 HR TREND......22% DRIER.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH BECOMING
NORTHEAST AFTER MIDNIGHT.
12K FT MSL WINDS....SOUTH 15-20 MPH.
WEDNESDAY
SKY/WEATHER.........SUNNY (15-25% CLOUD COVER).
CHANCE LIGHTNING....0%.
CWR.................0%.
MAX TEMPERATURE.....88-94 NEAR 3000 FEET.
73-80 NEAR 6000 FEET.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........14-18% NEAR 3000 FEET.
18-24% NEAR 6000 FEET.
24 HR TREND......3% DRIER.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 10 MPH BECOMING SOUTH IN
THE AFTERNOON.
12K FT MSL WINDS....SOUTH AROUND 10 MPH IN THE MORNING BECOMING
LIGHT AND VARIABLE.
MIXING HEIGHT.......9400 FT AGL (40-50TH PERCENTILE).
CLEARING INDEX......850.
FORECAST DAYS 3 THROUGH 7
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 60S IN THE VALLEYS
AND AROUND 60 IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN THE
VALLEYS AND IN THE MID 70S IN THE MOUNTAINS. WINDS GENERALLY LESS
THAN 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 60S IN THE VALLEYS AND
AROUND 60 IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN THE VALLEYS
AND IN THE MID 70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN
15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 60S IN THE VALLEYS
AND IN THE LOWER 60S IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN
THE VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS. WINDS
GENERALLY LESS THAN 15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS AROUND 70 IN THE VALLEYS AND IN THE
LOWER 60S IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN THE VALLEYS
AND IN THE MID 70S IN THE MOUNTAINS.
MONDAY
MOSTLY CLEAR. ISOLATED RAIN SHOWERS. LOWS IN THE UPPER
60S IN THE VALLEYS AND IN THE UPPER 50S IN THE MOUNTAINS. HIGHS
IN THE UPPER 80S IN THE VALLEYS AND IN THE MID 70S IN THE
MOUNTAINS.
=
UTZ498-221230-
GRAND STAIRCASE-
1249 PM MDT MON SEP 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER). SCATTERED
RAIN SHOWERS AND ISOLATED THUNDERSTORMS.
CHANCE LIGHTNING....20%.
CWR.................10%.
MIN TEMPERATURE.....60-66 NEAR 4000 FEET.
49-59 NEAR 6000 FEET.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........46-56% NEAR 4000 FEET.
61-71% NEAR 6000 FEET.
24 HR TREND......14% WETTER NEAR 4000 FEET.
36% WETTER NEAR 6000 FEET.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 5 MPH.
12K FT MSL WINDS....SOUTH 20-25 MPH.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY (55-65% CLOUD COVER). ISOLATED
RAIN SHOWERS UNTIL 1200. ISOLATED
THUNDERSTORMS. SCATTERED RAIN SHOWERS AFTER
1200.
CHANCE LIGHTNING....10% INCREASING TO 20% IN THE AFTERNOON.
CWR.................20%.
MAX TEMPERATURE.....83-89 NEAR 4000 FEET.
74-80 NEAR 6000 FEET.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........17-27% NEAR 4000 FEET.
23-31% NEAR 6000 FEET.
24 HR TREND......4% WETTER.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 5 MPH BECOMING SOUTH
WITH GUSTS TO AROUND 25 MPH IN THE AFTERNOON.
12K FT MSL WINDS....SOUTH AROUND 30 MPH.
MIXING HEIGHT.......9300 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......1000+.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MIN TEMPERATURE.....58-67 NEAR 4000 FEET.
48-58 NEAR 6000 FEET.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........45-55% NEAR 4000 FEET.
57-67% NEAR 6000 FEET.
24 HR TREND......10% WETTER NEAR 4000 FEET.
9% DRIER NEAR 6000 FEET.
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH BECOMING NORTHEAST
AFTER MIDNIGHT.
12K FT MSL WINDS....SOUTHWEST AROUND 20 MPH BECOMING SOUTH AROUND
10 MPH AFTER MIDNIGHT.
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER).
CHANCE LIGHTNING....10%.
CWR.................0%.
MAX TEMPERATURE.....80-88 NEAR 4000 FEET.
73-82 NEAR 6000 FEET.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........25-35%.
24 HR TREND......6% WETTER.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 5 MPH BECOMING SOUTHEAST
IN THE AFTERNOON.
12K FT MSL WINDS....LIGHT AND VARIABLE BECOMING NORTHEAST AROUND 10
MPH IN THE AFTERNOON.
MIXING HEIGHT.......8800 FT AGL (50-60TH PERCENTILE).
CLEARING INDEX......680.
FORECAST DAYS 3 THROUGH 7
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 60S IN THE VALLEYS AND IN THE MID 50S 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
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE LOWER 60S IN THE VALLEYS AND IN THE MID 50S IN THE
MOUNTAINS. HIGHS IN THE MID 80S IN THE VALLEYS AND IN THE MID 70S
IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S IN THE VALLEYS
AND IN THE MID 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.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE MID 60S IN THE VALLEYS AND IN THE MID 50S IN THE
MOUNTAINS. HIGHS IN THE MID 80S IN THE VALLEYS AND IN THE MID 70S
IN THE MOUNTAINS.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
IN THE LOWER 60S IN THE VALLEYS AND IN THE MID 50S IN THE
MOUNTAINS. HIGHS IN THE LOWER 80S IN THE VALLEYS AND IN THE MID
70S IN THE MOUNTAINS.
=
.8-14 DAY OUTLOOK FOR TUESDAY SEPTEMBER 29 TO MONDAY OCTOBER 05
TEMPERATURE... ABOVE NORMAL
PRECIPITATION... ABOVE NORMAL
=
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