406  
FNUS55 KSLC 130756  
FWFSLC  
 
FIRE WEATHER PLANNING FORECAST FOR UTAH  
NATIONAL WEATHER SERVICE SALT LAKE CITY UT  
156 AM MDT THU AUG 13 2026  
   
..MONSOON SURGE CONTINUES THROUGH FRIDAY THEN DRIER THIS WEEKEND
 
 
   
BROADCAST DISCUSSION
 
A MONSOON SURGE WILL CONTINUE TO BRING THE  
THREAT OF THUNDERSTORMS TO MUCH OF THE REGION THROUGH FRIDAY. A  
DRIER PATTERN WILL SET UP THIS WEEKEND INTO EARLY NEXT WEEK.  
   
DISCUSSION
 
A MONSOON SURGE WILL CONTINUE TO BRING THE THREAT OF  
SHOWERS AND THUNDERSTORMS AND ASSOCIATED GUSTY AND ERRATIC WINDS  
THROUGH THE NEXT FEW DAYS. BY THIS WEEKEND, DRIER AIR WILL WORK  
INTO THE REGION AS HIGH PRESSURE SHIFTS EASTWARD. HUMIDITIES WILL  
QUICKLY FALL ACROSS THE REGION OVER THE WEEKEND, WITH WIDESPREAD  
MINIMUM HUMIDITIES NEAR 15 TO 20 PERCENT FOR VALLEYS AND 30 TO 45  
PERCENT FOR MOUNTAINS BY SUNDAY. THOSE LOW DAYTIME HUMIDITIES WILL  
REMAIN IN PLACE THROUGH AT LEAST EARLY NEXT WEEK. ANY RELIEF FROM  
THESE LOW HUMIDITIES WILL BE TIED TO WHETHER HIGH PRESSURE WILL  
SHIFT INTO A MORE BENEFICIAL LOCATION FOR ANOTHER MONSOON SURGE.  
 
***THUNDERSTORMS IMPLY STRONG, GUSTY AND ERRATIC WINDS***  
***ALL WINDS ARE 20 FOOT, 10-MINUTE AVERAGES***  
 
UTZ478-140030-  
SALT LAKE DESERT-  
156 AM MDT THU AUG 13 2026  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). NORTH OF I-80,  
ISOLATED THUNDERSTORMS UNTIL 1200. NUMEROUS  
RAIN SHOWERS. SCATTERED THUNDERSTORMS AFTER  
1200. SOUTH OF I-80, SCATTERED RAIN SHOWERS AND  
ISOLATED THUNDERSTORMS UNTIL 1200, THEN RAIN  
SHOWERS AND SCATTERED THUNDERSTORMS.  
CHANCE LIGHTNING....20% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................60% NORTH OF I-80 AND 70% SOUTH OF I-80.  
MAX TEMPERATURE.....73-83 NEAR 5000 FEET.  
59-67 NEAR 8000 FEET.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........45-55% NEAR 5000 FEET.  
61-71% NEAR 8000 FEET.  
24 HR TREND......16% WETTER NEAR 5000 FEET.  
24% WETTER NEAR 8000 FEET.  
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH BECOMING NORTHWEST IN  
THE AFTERNOON.  
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH BECOMING AROUND 30 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......6400 FT AGL (30-40TH PERCENTILE).  
CLEARING INDEX......560.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). NORTH OF I-80,  
SCATTERED THUNDERSTORMS UNTIL 2400. SCATTERED  
RAIN SHOWERS. ISOLATED THUNDERSTORMS AFTER  
2400. SOUTH OF I-80, NUMEROUS RAIN SHOWERS AND  
SCATTERED THUNDERSTORMS UNTIL 2400, THEN  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS.  
CHANCE LIGHTNING....40% DECREASING TO 20% AFTER MIDNIGHT.  
CWR.................20% NORTH OF I-80 AND 30% SOUTH OF I-80.  
MIN TEMPERATURE.....50-60.  
24 HR TREND......5 DEGREES COOLER.  
MAX HUMIDITY........72-82%.  
24 HR TREND......11% WETTER NEAR 5000 FEET.  
4% WETTER NEAR 8000 FEET.  
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH BECOMING SOUTH AFTER  
MIDNIGHT.  
12K FT MSL WINDS....SOUTHWEST 20-25 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). NORTH OF  
I-80, ISOLATED THUNDERSTORMS UNTIL 1200.  
SCATTERED RAIN SHOWERS. SCATTERED THUNDERSTORMS  
AFTER 1200. SOUTH OF I-80, SCATTERED SHOWERS  
AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 40% IN THE AFTERNOON.  
CWR.................20%.  
MAX TEMPERATURE.....75-83 NEAR 5000 FEET.  
61-68 NEAR 8000 FEET.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........37-47% NEAR 5000 FEET.  
50-60% NEAR 8000 FEET.  
24 HR TREND......8% DRIER.  
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 25 MPH.  
MIXING HEIGHT.......10400 FT AGL (70-80TH PERCENTILE).  
CLEARING INDEX......1000.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS. LOWS IN THE UPPER 50S. 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 AROUND 60. HIGHS IN THE MID 80S IN  
THE VALLEYS AND AROUND 70 IN THE MOUNTAINS. WINDS GENERALLY LESS  
THAN 15 MPH.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 60S. HIGHS IN THE  
UPPER 80S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.  
WINDS GENERALLY LESS THAN 15 MPH.    
TUESDAY
 
MOSTLY CLOUDY. ISOLATED RAIN SHOWERS. LOWS IN THE MID  
60S. HIGHS IN THE UPPER 80S IN THE VALLEYS AND IN THE MID 70S IN  
THE MOUNTAINS.    
WEDNESDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 80S IN THE VALLEYS AND  
IN THE LOWER 70S IN THE MOUNTAINS.  
=  
 

 
 
UTZ479-140030-  
WASATCH MOUNTAINS-  
156 AM MDT THU AUG 13 2026  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). NORTH OF I-80,  
NUMEROUS RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 1200, THEN RAIN SHOWERS AND  
SCATTERED THUNDERSTORMS. SOUTH OF I-80,  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS UNTIL 1200, THEN RAIN SHOWERS  
WITH NUMEROUS THUNDERSTORMS.  
CHANCE LIGHTNING....20% INCREASING TO 60% IN THE AFTERNOON.  
CWR.................80%.  
MAX TEMPERATURE.....72-81 NEAR 5000 FEET.  
64-74 NEAR 8000 FEET.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........52-62% NEAR 5000 FEET.  
63-73% NEAR 8000 FEET.  
24 HR TREND......19% WETTER NEAR 5000 FEET.  
24% WETTER NEAR 8000 FEET.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH. GUSTS UP TO 20 MPH  
IN THE AFTERNOON.  
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH BECOMING AROUND 30 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......5300 FT AGL (30-40TH PERCENTILE).  
CLEARING INDEX......630.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). NORTH OF I-80,  
SCATTERED THUNDERSTORMS UNTIL 2400. SCATTERED  
RAIN SHOWERS. ISOLATED THUNDERSTORMS AFTER  
2400. SOUTH OF I-80, NUMEROUS RAIN SHOWERS AND  
SCATTERED THUNDERSTORMS UNTIL 2400, THEN  
SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS.  
CHANCE LIGHTNING....30% DECREASING TO 20% AFTER MIDNIGHT.  
CWR.................30% NORTH OF I-80 AND 50% SOUTH OF I-80.  
MIN TEMPERATURE.....46-56.  
24 HR TREND......3 DEGREES COOLER.  
MAX HUMIDITY........87-97% NEAR 5000 FEET.  
78-88% NEAR 8000 FEET.  
24 HR TREND......5% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 5 MPH.  
12K FT MSL WINDS....WEST 25-30 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). NORTH OF  
I-80, ISOLATED THUNDERSTORMS UNTIL 1200.  
SCATTERED RAIN SHOWERS. SCATTERED THUNDERSTORMS  
AFTER 1200. SOUTH OF I-80, ISOLATED SHOWERS AND  
THUNDERSTORMS UNTIL 1200, THEN SCATTERED  
SHOWERS AND THUNDERSTORMS.  
CHANCE LIGHTNING....20% INCREASING TO 40% IN THE AFTERNOON.  
CWR.................20% NORTH OF I-80 AND 30% SOUTH OF I-80.  
MAX TEMPERATURE.....74-82 NEAR 5000 FEET.  
64-74 NEAR 8000 FEET.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........37-47% NEAR 5000 FEET.  
47-57% NEAR 8000 FEET.  
24 HR TREND......14% DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO  
AROUND 25 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 25 MPH.  
MIXING HEIGHT.......9200 FT AGL (60-70TH PERCENTILE).  
CLEARING INDEX......1000+.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED  
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
 
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE  
LOWER 80S IN THE VALLEYS AND AROUND 70 IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE MID  
80S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
TUESDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S. HIGHS IN THE MID 80S IN THE VALLEYS AND IN  
THE MID 70S IN THE MOUNTAINS.    
WEDNESDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S. HIGHS IN THE MID 80S IN THE VALLEYS AND IN  
THE MID 70S IN THE MOUNTAINS.  
=  
 

 
 
UTZ480-140030-  
UINTA MOUNTAINS-  
156 AM MDT THU AUG 13 2026  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). NUMEROUS RAIN  
SHOWERS AND ISOLATED THUNDERSTORMS UNTIL 1200,  
THEN RAIN SHOWERS WITH NUMEROUS THUNDERSTORMS.  
CHANCE LIGHTNING....20% INCREASING TO 70% IN THE AFTERNOON.  
CWR.................80%.  
MAX TEMPERATURE.....68-74 NEAR 7000 FEET.  
60-66 NEAR 9000 FEET.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........65-75%.  
24 HR TREND......29% WETTER NEAR 7000 FEET.  
21% WETTER NEAR 9000 FEET.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 5 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH BECOMING AROUND 30 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......4800 FT AGL (30-40TH PERCENTILE).  
CLEARING INDEX......670.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). SCATTERED  
SHOWERS AND THUNDERSTORMS UNTIL 2400, THEN  
ISOLATED RAIN SHOWERS.  
CHANCE LIGHTNING....30% DECREASING TO 10% AFTER MIDNIGHT.  
CWR.................40%.  
MIN TEMPERATURE.....46-54 NEAR 7000 FEET.  
38-48 NEAR 9000 FEET.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........83-93%.  
24 HR TREND......1% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....SOUTHWEST 20-25 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 1200, THEN  
SCATTERED SHOWERS AND THUNDERSTORMS.  
CHANCE LIGHTNING....10% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................40%.  
MAX TEMPERATURE.....69-75 NEAR 7000 FEET.  
61-67 NEAR 9000 FEET.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........50-60%.  
24 HR TREND......15% DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......7800 FT AGL (50-60TH PERCENTILE).  
CLEARING INDEX......1000+.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.  
LOWS AROUND 50 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.    
SUNDAY
 
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.  
LOWS AROUND 50 IN THE VALLEYS AND IN THE LOWER 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.    
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 UPPER 70S IN THE VALLEYS AND IN THE UPPER  
60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
TUESDAY
 
MOSTLY CLOUDY. SCATTERED 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 LOWER  
70S IN THE MOUNTAINS.    
WEDNESDAY
 
MOSTLY CLOUDY. SCATTERED 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 AROUND 70 IN  
THE MOUNTAINS.  
=  
 

 
 
UTZ481-140030-  
WESTERN ASHLEY NATIONAL FOREST-  
156 AM MDT THU AUG 13 2026  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). NUMEROUS RAIN  
SHOWERS AND ISOLATED THUNDERSTORMS UNTIL 1200,  
THEN RAIN SHOWERS WITH NUMEROUS THUNDERSTORMS.  
CHANCE LIGHTNING....20% INCREASING TO 70% IN THE AFTERNOON.  
CWR.................80%.  
MAX TEMPERATURE.....68-74 NEAR 7000 FEET.  
56-62 NEAR 10000 FEET.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........52-62% NEAR 7000 FEET.  
63-73% NEAR 10000 FEET.  
24 HR TREND......15% WETTER NEAR 7000 FEET.  
21% WETTER NEAR 10000 FEET.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH BECOMING AROUND 25 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......4200 FT AGL (30-40TH PERCENTILE).  
CLEARING INDEX......540.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). SCATTERED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....30% DECREASING TO 10% AFTER MIDNIGHT.  
CWR.................30%.  
MIN TEMPERATURE.....48-54 NEAR 7000 FEET.  
38-48 NEAR 10000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........73-83% NEAR 7000 FEET.  
84-94% NEAR 10000 FEET.  
24 HR TREND......13% DRIER NEAR 7000 FEET.  
6% DRIER NEAR 10000 FEET.  
20-FOOT WINDS.......WEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). SCATTERED  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................30%.  
MAX TEMPERATURE.....69-75 NEAR 7000 FEET.  
56-63 NEAR 10000 FEET.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........38-47% NEAR 7000 FEET.  
48-58% NEAR 10000 FEET.  
24 HR TREND......16% DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO  
AROUND 25 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......7100 FT AGL (50-60TH PERCENTILE).  
CLEARING INDEX......950.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S IN THE VALLEYS AND IN THE LOWER 40S IN THE  
MOUNTAINS. HIGHS IN THE MID 70S IN THE VALLEYS AND AROUND 60 IN  
THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
SUNDAY
 
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S IN THE VALLEYS AND IN THE LOWER 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.    
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 UPPER 70S IN THE VALLEYS AND IN THE MID  
60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
TUESDAY
 
MOSTLY CLOUDY. SCATTERED 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 MID  
60S IN THE MOUNTAINS.    
WEDNESDAY
 
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 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.  
=  
 

 
 
UTZ482-140030-  
WESTERN UINTAH BASIN-  
156 AM MDT THU AUG 13 2026  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). SCATTERED RAIN  
SHOWERS AND ISOLATED THUNDERSTORMS UNTIL 1200,  
THEN RAIN SHOWERS WITH NUMEROUS THUNDERSTORMS.  
CHANCE LIGHTNING....20% INCREASING TO 70% IN THE AFTERNOON.  
CWR.................70%.  
MAX TEMPERATURE.....74-80 NEAR 6000 FEET.  
65-71 NEAR 8000 FEET.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........45-53% NEAR 6000 FEET.  
51-61% NEAR 8000 FEET.  
24 HR TREND......13% WETTER NEAR 6000 FEET.  
18% WETTER NEAR 8000 FEET.  
20-FOOT WINDS.......WEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH BECOMING AROUND 25 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......6100 FT AGL (40-50TH PERCENTILE).  
CLEARING INDEX......800.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER). SCATTERED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....30% DECREASING TO 10% AFTER MIDNIGHT.  
CWR.................10%.  
MIN TEMPERATURE.....47-57.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........75-85%.  
24 HR TREND......11% DRIER.  
20-FOOT WINDS.......WEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....WEST 20-25 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). SCATTERED  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................30%.  
MAX TEMPERATURE.....74-80 NEAR 6000 FEET.  
65-71 NEAR 8000 FEET.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........36-43% NEAR 6000 FEET.  
39-49% NEAR 8000 FEET.  
24 HR TREND......10% DRIER.  
20-FOOT WINDS.......WEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.  
MIXING HEIGHT.......9300 FT AGL (60-70TH PERCENTILE).  
CLEARING INDEX......1000+.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S 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 IN THE LOWER 80S IN THE VALLEYS AND IN THE  
LOWER 70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE LOWER  
80S IN THE VALLEYS AND IN THE MID 70S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
TUESDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S IN THE VALLEYS AND IN  
THE UPPER 70S IN THE MOUNTAINS.    
WEDNESDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S IN THE VALLEYS AND IN  
THE UPPER 70S IN THE MOUNTAINS.  
=  
 

 
 
UTZ483-140030-  
SOUTHERN ASHLEY NATIONAL FOREST-  
156 AM MDT THU AUG 13 2026  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). SCATTERED RAIN  
SHOWERS AND ISOLATED THUNDERSTORMS UNTIL 1200,  
THEN RAIN SHOWERS WITH NUMEROUS THUNDERSTORMS.  
CHANCE LIGHTNING....20% INCREASING TO 70% IN THE AFTERNOON.  
CWR.................70%.  
MAX TEMPERATURE.....72-78 NEAR 7000 FEET.  
61-67 NEAR 9000 FEET.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........46-50% NEAR 7000 FEET.  
56-66% NEAR 9000 FEET.  
24 HR TREND......13% WETTER NEAR 7000 FEET.  
22% WETTER NEAR 9000 FEET.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....SOUTHWEST 20-25 MPH.  
MIXING HEIGHT.......5700 FT AGL (40-50TH PERCENTILE).  
CLEARING INDEX......800.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). SCATTERED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....30% DECREASING TO 10% AFTER MIDNIGHT.  
CWR.................20%.  
MIN TEMPERATURE.....48-58.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........63-73% NEAR 7000 FEET.  
67-77% NEAR 9000 FEET.  
24 HR TREND......14% DRIER.  
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH.  
12K FT MSL WINDS....WEST 20-25 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). SCATTERED  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................30%.  
MAX TEMPERATURE.....72-78 NEAR 7000 FEET.  
61-67 NEAR 9000 FEET.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........38-44% NEAR 7000 FEET.  
48-58% NEAR 9000 FEET.  
24 HR TREND......8% DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.  
MIXING HEIGHT.......8400 FT AGL (50-60TH PERCENTILE).  
CLEARING INDEX......1000+.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE MID 50S IN THE VALLEYS AND IN THE LOWER 50S 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 50S IN THE VALLEYS AND IN THE LOWER 50S 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.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S IN THE VALLEYS AND  
IN THE MID 50S IN THE MOUNTAINS. HIGHS AROUND 80 IN THE VALLEYS  
AND IN THE UPPER 60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN  
15 MPH.    
TUESDAY
 
MOSTLY CLOUDY. LOWS IN THE LOWER 60S IN THE VALLEYS  
AND IN THE UPPER 50S IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN  
THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS.    
WEDNESDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S IN THE VALLEYS AND IN  
THE LOWER 70S IN THE MOUNTAINS.  
=  
 

 
 
UTZ484-140030-  
TAVAPUTS PLATEAU-  
156 AM MDT THU AUG 13 2026  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). SCATTERED  
RAIN SHOWERS AND ISOLATED THUNDERSTORMS UNTIL  
1200, THEN NUMEROUS SHOWERS AND THUNDERSTORMS.  
CHANCE LIGHTNING....20% INCREASING TO 60% IN THE AFTERNOON.  
CWR.................50%.  
MAX TEMPERATURE.....78-84 NEAR 6000 FEET.  
66-72 NEAR 8000 FEET.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........40-50% NEAR 6000 FEET.  
49-59% NEAR 8000 FEET.  
24 HR TREND......10% WETTER NEAR 6000 FEET.  
17% WETTER NEAR 8000 FEET.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH BECOMING AROUND 25 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......7100 FT AGL (40-50TH PERCENTILE).  
CLEARING INDEX......860.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). SCATTERED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....30% DECREASING TO 10% AFTER MIDNIGHT.  
CWR.................20%.  
MIN TEMPERATURE.....56-62 NEAR 6000 FEET.  
49-58 NEAR 8000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........64-74% NEAR 6000 FEET.  
69-79% NEAR 8000 FEET.  
24 HR TREND......8% DRIER.  
20-FOOT WINDS.......WEST WINDS AROUND 5 MPH. GUSTS UP TO 20 MPH IN  
THE EVENING.  
12K FT MSL WINDS....WEST 15-20 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER). SCATTERED  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................20%.  
MAX TEMPERATURE.....77-83 NEAR 6000 FEET.  
66-72 NEAR 8000 FEET.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........35-45% NEAR 6000 FEET.  
40-50% NEAR 8000 FEET.  
24 HR TREND......7% DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 5 MPH.  
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.  
MIXING HEIGHT.......8800 FT AGL (50-60TH PERCENTILE).  
CLEARING INDEX......1000+.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
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 LOWER 80S IN THE VALLEYS AND IN THE LOWER  
70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 60 IN THE VALLEYS AND IN THE  
MID 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.    
MONDAY
 
PARTLY CLOUDY. 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.    
TUESDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 60S IN THE VALLEYS  
AND IN THE UPPER 50S IN THE MOUNTAINS. HIGHS IN THE UPPER 80S IN  
THE VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS.    
WEDNESDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE MID 60S IN THE VALLEYS AND IN THE UPPER 50S IN THE  
MOUNTAINS. HIGHS IN THE UPPER 80S IN THE VALLEYS AND IN THE UPPER  
70S IN THE MOUNTAINS.  
=  
 

 
 
UTZ488-140030-  
MANTI NATIONAL FOREST-  
156 AM MDT THU AUG 13 2026  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). SCATTERED  
RAIN SHOWERS AND ISOLATED THUNDERSTORMS UNTIL  
1200, THEN RAIN SHOWERS WITH NUMEROUS  
THUNDERSTORMS.  
CHANCE LIGHTNING....20% INCREASING TO 60% IN THE AFTERNOON.  
CWR.................60%.  
MAX TEMPERATURE.....70-79 NEAR 6500 FEET.  
59-68 NEAR 8500 FEET.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........44-54% NEAR 6500 FEET.  
58-68% NEAR 8500 FEET.  
24 HR TREND......17% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....SOUTHWEST 20-25 MPH.  
MIXING HEIGHT.......5500 FT AGL (40-50TH PERCENTILE).  
CLEARING INDEX......750.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). SCATTERED SHOWERS  
AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....30% DECREASING TO 10% AFTER MIDNIGHT.  
CWR.................30%.  
MIN TEMPERATURE.....48-58 NEAR 6500 FEET.  
42-52 NEAR 8500 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........75-85%.  
24 HR TREND......8% DRIER.  
20-FOOT WINDS.......WEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....WEST 20-25 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). SCATTERED SHOWERS  
AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 40% IN THE AFTERNOON.  
CWR.................40%.  
MAX TEMPERATURE.....69-78 NEAR 6500 FEET.  
58-67 NEAR 8500 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........41-49% NEAR 6500 FEET.  
49-59% NEAR 8500 FEET.  
24 HR TREND......6% DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.  
MIXING HEIGHT.......9100 FT AGL (60-70TH PERCENTILE).  
CLEARING INDEX......990.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
MOSTLY 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 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 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.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE MID 50S IN THE VALLEYS AND  
IN THE LOWER 50S IN THE MOUNTAINS. HIGHS AROUND 80 IN THE VALLEYS  
AND AROUND 70 IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.   
TUESDAY
 
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 LOWER 80S IN THE VALLEYS AND IN THE LOWER  
70S IN THE MOUNTAINS.    
WEDNESDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 50S IN THE VALLEYS AND IN THE MID 50S IN THE  
MOUNTAINS. HIGHS IN THE LOWER 80S IN THE VALLEYS AND IN THE LOWER  
70S IN THE MOUNTAINS.  
=  
 

 
 
UTZ489-140030-  
SAN RAFAEL SWELL-  
156 AM MDT THU AUG 13 2026  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 1200, THEN  
SCATTERED SHOWERS AND THUNDERSTORMS.  
CHANCE LIGHTNING....20% INCREASING TO 60% IN THE AFTERNOON.  
CWR.................40%.  
MAX TEMPERATURE.....84-90 NEAR 5000 FEET.  
72-78 NEAR 7000 FEET.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........29-39% NEAR 5000 FEET.  
40-50% NEAR 7000 FEET.  
24 HR TREND......11% WETTER.  
20-FOOT WINDS.......SOUTH WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.  
MIXING HEIGHT.......7900 FT AGL (40-50TH PERCENTILE).  
CLEARING INDEX......760.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER). SCATTERED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....30% DECREASING TO 10% AFTER MIDNIGHT.  
CWR.................10%.  
MIN TEMPERATURE.....59-65 NEAR 5000 FEET.  
54-63 NEAR 7000 FEET.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........71-81%.  
24 HR TREND......8% DRIER.  
20-FOOT WINDS.......NORTHWEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). SCATTERED  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 40% IN THE AFTERNOON.  
CWR.................20%.  
MAX TEMPERATURE.....84-90 NEAR 5000 FEET.  
72-78 NEAR 7000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........24-33% NEAR 5000 FEET.  
34-43% NEAR 7000 FEET.  
24 HR TREND......6% DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH. GUSTS UP TO 20 MPH  
IN THE AFTERNOON.  
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......9700 FT AGL (50-60TH PERCENTILE).  
CLEARING INDEX......1000+.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE  
UPPER 80S IN THE VALLEYS AND IN THE MID 70S IN THE MOUNTAINS.  
WINDS GENERALLY LESS THAN 15 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 60. HIGHS IN THE LOWER 90S  
IN THE VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 60S. HIGHS IN THE  
LOWER 90S IN THE VALLEYS AND IN THE LOWER 80S IN THE MOUNTAINS.  
WINDS GENERALLY LESS THAN 15 MPH.    
TUESDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 60S. HIGHS IN THE MID  
90S IN THE VALLEYS AND IN THE MID 80S IN THE MOUNTAINS.    
WEDNESDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE MID 60S. HIGHS IN THE MID 90S IN THE VALLEYS AND IN  
THE MID 80S IN THE MOUNTAINS.  
=  
 

 
 
UTZ492-140030-  
CENTRAL UTAH WEST DESERT-  
156 AM MDT THU AUG 13 2026  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 1200, THEN  
SCATTERED SHOWERS AND THUNDERSTORMS.  
CHANCE LIGHTNING....20% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................50%.  
MAX TEMPERATURE.....80-86 NEAR 5000 FEET.  
65-71 NEAR 8000 FEET.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........33-43% NEAR 5000 FEET.  
49-59% NEAR 8000 FEET.  
24 HR TREND......9% WETTER NEAR 5000 FEET.  
15% WETTER NEAR 8000 FEET.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 15 MPH WITH GUSTS TO  
AROUND 30 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 25 MPH.  
MIXING HEIGHT.......8000 FT AGL (40-50TH PERCENTILE).  
CLEARING INDEX......1000+.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). NUMEROUS RAIN  
SHOWERS AND SCATTERED THUNDERSTORMS UNTIL 2400,  
THEN ISOLATED RAIN SHOWERS.  
CHANCE LIGHTNING....40% DECREASING TO 10% AFTER MIDNIGHT.  
CWR.................40%.  
MIN TEMPERATURE.....49-59.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........73-83%.  
24 HR TREND......4% WETTER NEAR 5000 FEET.  
1% DRIER NEAR 8000 FEET.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH.  
12K FT MSL WINDS....SOUTHWEST 20-25 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). SCATTERED SHOWERS  
AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 40% IN THE AFTERNOON.  
CWR.................10%.  
MAX TEMPERATURE.....78-84 NEAR 5000 FEET.  
63-69 NEAR 8000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........30-40% NEAR 5000 FEET.  
45-55% NEAR 8000 FEET.  
24 HR TREND......2% DRIER.  
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH WITH GUSTS TO AROUND  
25 MPH.  
12K FT MSL WINDS....SOUTHWEST 20-25 MPH.  
MIXING HEIGHT.......10800 FT AGL (70-80TH PERCENTILE).  
CLEARING INDEX......1000+.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE MID 50S. 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. HIGHS IN THE MID  
80S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 60S IN THE VALLEYS AND  
IN THE MID 50S 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.    
TUESDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 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.    
WEDNESDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 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.  
=  
 

 
 
UTZ493-140030-  
CENTRAL UTAH MOUNTAINS-  
156 AM MDT THU AUG 13 2026  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). SCATTERED  
RAIN SHOWERS AND ISOLATED THUNDERSTORMS UNTIL  
1200, THEN NUMEROUS SHOWERS AND THUNDERSTORMS.  
CHANCE LIGHTNING....10% INCREASING TO 60% IN THE AFTERNOON.  
CWR.................50%.  
MAX TEMPERATURE.....78-84 NEAR 5000 FEET.  
67-73 NEAR 8000 FEET.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........40-46% NEAR 5000 FEET.  
48-58% NEAR 8000 FEET.  
24 HR TREND......10% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH. GUSTS UP TO 25 MPH  
IN THE AFTERNOON.  
12K FT MSL WINDS....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......6700 FT AGL (40-50TH PERCENTILE).  
CLEARING INDEX......840.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). SCATTERED  
THUNDERSTORMS UNTIL 2400. SCATTERED RAIN  
SHOWERS.  
CHANCE LIGHTNING....40% DECREASING TO 10% AFTER MIDNIGHT.  
CWR.................30%.  
MIN TEMPERATURE.....46-56.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........73-83%.  
24 HR TREND......8% DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). SCATTERED RAIN  
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................30%.  
MAX TEMPERATURE.....76-82 NEAR 5000 FEET.  
65-72 NEAR 8000 FEET.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........39-45% NEAR 5000 FEET.  
45-55% NEAR 8000 FEET.  
24 HR TREND......3% DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 5 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......8200 FT AGL (40-50TH PERCENTILE).  
CLEARING INDEX......810.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 40S. 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 LOWER 50S. HIGHS IN THE MID 80S IN THE VALLEYS AND IN THE  
LOWER 70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
MONDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS  
IN THE LOWER 50S. HIGHS IN THE UPPER 80S IN THE VALLEYS AND IN  
THE MID 70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH.    
TUESDAY
 
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS AROUND 90 IN  
THE VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS.    
WEDNESDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 50S. HIGHS IN THE LOWER 90S IN THE VALLEYS AND  
IN THE UPPER 70S IN THE MOUNTAINS.  
=  
 

 
 
UTZ494-140030-  
HENRY MOUNTAINS-  
156 AM MDT THU AUG 13 2026  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER). SCATTERED  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................30%.  
MAX TEMPERATURE.....84-90 NEAR 5000 FEET.  
69-79 NEAR 8000 FEET.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........25-34% NEAR 5000 FEET.  
40-50% NEAR 8000 FEET.  
24 HR TREND......5% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH.  
12K FT MSL WINDS....SOUTHWEST 15-20 MPH.  
MIXING HEIGHT.......8700 FT AGL (40-50TH PERCENTILE).  
CLEARING INDEX......1000+.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (65-75% CLOUD COVER). ISOLATED  
SHOWERS AND THUNDERSTORMS UNTIL 2400.  
CHANCE LIGHTNING....10%.  
CWR.................0%.  
MIN TEMPERATURE.....59-68 NEAR 5000 FEET.  
54-62 NEAR 8000 FEET.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........56-66%.  
24 HR TREND......9% DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....WEST AROUND 20 MPH BECOMING SOUTHWEST AROUND 10  
MPH AFTER MIDNIGHT.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). SCATTERED  
SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....10% INCREASING TO 40% IN THE AFTERNOON.  
CWR.................10%.  
MAX TEMPERATURE.....83-89 NEAR 5000 FEET.  
67-77 NEAR 8000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........23-30% NEAR 5000 FEET.  
36-46% NEAR 8000 FEET.  
24 HR TREND......3% DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....SOUTHWEST 10-15 MPH.  
MIXING HEIGHT.......9700 FT AGL (50-60TH PERCENTILE).  
CLEARING INDEX......1000+.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 60S IN THE VALLEYS  
AND IN THE MID 50S IN THE MOUNTAINS. HIGHS IN THE UPPER 80S IN  
THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS. WINDS  
GENERALLY LESS THAN 15 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE MID 60S IN THE VALLEYS AND  
IN THE UPPER 50S IN THE MOUNTAINS. HIGHS AROUND 90 IN THE VALLEYS  
AND IN THE MID 70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN  
15 MPH.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE MID 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.    
TUESDAY
 
PARTLY CLOUDY. LOWS IN THE MID 60S. HIGHS IN THE MID  
90S IN THE VALLEYS AND AROUND 80 IN THE MOUNTAINS.    
WEDNESDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 60S IN THE VALLEYS  
AND IN THE MID 60S IN THE MOUNTAINS. HIGHS IN THE MID 90S IN THE  
VALLEYS AND AROUND 80 IN THE MOUNTAINS.  
=  
 

 
 
UTZ495-140030-  
COLOR COUNTRY WEST DESERT-  
156 AM MDT THU AUG 13 2026  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). ISOLATED  
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN  
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....20% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................40%.  
MAX TEMPERATURE.....78-84 NEAR 5000 FEET.  
69-75 NEAR 7000 FEET.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........40-50% NEAR 5000 FEET.  
48-58% NEAR 7000 FEET.  
24 HR TREND......15% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 15 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 25 MPH.  
MIXING HEIGHT.......7300 FT AGL (40-50TH PERCENTILE).  
CLEARING INDEX......1000+.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). NUMEROUS RAIN  
SHOWERS AND SCATTERED THUNDERSTORMS UNTIL 2400,  
THEN SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS.  
CHANCE LIGHTNING....50% DECREASING TO 30% AFTER MIDNIGHT.  
CWR.................50%.  
MIN TEMPERATURE.....48-58.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........81-91% NEAR 5000 FEET.  
69-79% NEAR 7000 FEET.  
24 HR TREND......1% DRIER NEAR 5000 FEET.  
7% DRIER NEAR 7000 FEET.  
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 20 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). ISOLATED  
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN  
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....20% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................30%.  
MAX TEMPERATURE.....76-82 NEAR 5000 FEET.  
68-74 NEAR 7000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........40-50% NEAR 5000 FEET.  
47-57% NEAR 7000 FEET.  
24 HR TREND......3% DRIER.  
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH WITH GUSTS TO AROUND  
25 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......9900 FT AGL (70-80TH PERCENTILE).  
CLEARING INDEX......1000+.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 40S IN THE VALLEYS AND IN THE MID 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
 
PARTLY CLOUDY. LOWS IN THE LOWER 50S IN THE VALLEYS AND  
IN THE UPPER 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.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE MID 50S IN THE VALLEYS AND  
IN THE UPPER 50S IN THE MOUNTAINS. HIGHS IN THE UPPER 80S IN THE  
VALLEYS AND AROUND 80 IN THE MOUNTAINS. WINDS GENERALLY LESS THAN  
15 MPH.    
TUESDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S IN THE VALLEYS  
AND IN THE LOWER 60S IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN  
THE VALLEYS AND IN THE LOWER 80S IN THE MOUNTAINS.    
WEDNESDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S IN THE VALLEYS  
AND IN THE LOWER 60S IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN  
THE VALLEYS AND IN THE LOWER 80S IN THE MOUNTAINS.  
=  
 

 
 
UTZ496-140030-  
COLOR COUNTRY MOUNTAINS-  
156 AM MDT THU AUG 13 2026  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). ISOLATED  
THUNDERSTORMS UNTIL 1200. SCATTERED RAIN  
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....20% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................50%.  
MAX TEMPERATURE.....73-83 NEAR 6000 FEET.  
64-74 NEAR 8000 FEET.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........41-51% NEAR 6000 FEET.  
52-62% NEAR 8000 FEET.  
24 HR TREND......13% WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO  
AROUND 25 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......7000 FT AGL (30-40TH PERCENTILE).  
CLEARING INDEX......780.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). SCATTERED  
THUNDERSTORMS UNTIL 2400. SCATTERED RAIN  
SHOWERS. ISOLATED THUNDERSTORMS AFTER 2400.  
CHANCE LIGHTNING....40% DECREASING TO 20% AFTER MIDNIGHT.  
CWR.................40%.  
MIN TEMPERATURE.....48-58.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........73-83%.  
24 HR TREND......7% DRIER.  
20-FOOT WINDS.......WEST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). SCATTERED RAIN  
SHOWERS AND ISOLATED THUNDERSTORMS UNTIL 1200,  
THEN NUMEROUS RAIN SHOWERS AND SCATTERED  
THUNDERSTORMS.  
CHANCE LIGHTNING....20% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................50%.  
MAX TEMPERATURE.....72-82 NEAR 6000 FEET.  
63-73 NEAR 8000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........40-50% NEAR 6000 FEET.  
51-61% NEAR 8000 FEET.  
24 HR TREND......2% DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 5 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......8300 FT AGL (40-50TH PERCENTILE).  
CLEARING INDEX......730.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS IN THE MID 50S IN THE VALLEYS AND IN THE UPPER 40S IN THE  
MOUNTAINS. HIGHS AROUND 80 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 UPPER 50S 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.    
MONDAY
 
PARTLY CLOUDY. 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 MID 70S IN THE MOUNTAINS. WINDS GENERALLY LESS  
THAN 15 MPH.    
TUESDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 60S IN THE VALLEYS  
AND IN THE MID 50S IN THE MOUNTAINS. HIGHS IN THE UPPER 80S IN  
THE VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 60S IN THE VALLEYS  
AND IN THE MID 50S IN THE MOUNTAINS. HIGHS IN THE UPPER 80S IN  
THE VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS.  
=  
 

 
 
UTZ497-140030-  
MOJAVE DESERT-  
156 AM MDT THU AUG 13 2026  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85% CLOUD COVER). SCATTERED  
RAIN SHOWERS AND ISOLATED THUNDERSTORMS UNTIL  
1200, THEN NUMEROUS RAIN SHOWERS AND SCATTERED  
THUNDERSTORMS.  
CHANCE LIGHTNING....20% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................60%.  
MAX TEMPERATURE.....84-90 NEAR 3000 FEET.  
69-77 NEAR 6000 FEET.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........42-49% NEAR 3000 FEET.  
57-66% NEAR 6000 FEET.  
24 HR TREND......13% WETTER NEAR 3000 FEET.  
19% WETTER NEAR 6000 FEET.  
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 5 MPH BECOMING SOUTHWEST  
IN THE AFTERNOON.  
12K FT MSL WINDS....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......6700 FT AGL (20-30TH PERCENTILE).  
CLEARING INDEX......780.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY (85-95% CLOUD COVER). NUMEROUS RAIN  
SHOWERS AND SCATTERED THUNDERSTORMS.  
CHANCE LIGHTNING....40% DECREASING TO 30% AFTER MIDNIGHT.  
CWR.................50%.  
MIN TEMPERATURE.....68-76 NEAR 3000 FEET.  
57-67 NEAR 6000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........60-70% NEAR 3000 FEET.  
75-85% NEAR 6000 FEET.  
24 HR TREND......1% DRIER.  
20-FOOT WINDS.......EAST WINDS 5 TO 10 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). ISOLATED  
THUNDERSTORMS UNTIL 1200. NUMEROUS RAIN  
SHOWERS. SCATTERED THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....20% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................50%.  
MAX TEMPERATURE.....83-89 NEAR 3000 FEET.  
69-75 NEAR 6000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........41-49% NEAR 3000 FEET.  
53-63% NEAR 6000 FEET.  
24 HR TREND......1% DRIER.  
20-FOOT WINDS.......EAST WINDS AROUND 5 MPH BECOMING SOUTH IN THE  
AFTERNOON.  
12K FT MSL WINDS....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......8400 FT AGL (30-40TH PERCENTILE).  
CLEARING INDEX......1000+.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS. 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. WINDS GENERALLY LESS THAN 15 MPH.   
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 70S IN THE VALLEYS AND  
IN THE LOWER 60S IN THE MOUNTAINS. HIGHS IN THE MID 90S IN THE  
VALLEYS AND AROUND 80 IN THE MOUNTAINS. WINDS GENERALLY LESS THAN  
15 MPH.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 70S IN THE VALLEYS AND  
IN THE MID 60S IN THE MOUNTAINS. HIGHS IN THE UPPER 90S IN THE  
VALLEYS AND IN THE MID 80S IN THE MOUNTAINS. WINDS GENERALLY LESS  
THAN 15 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 70S IN THE VALLEYS AND  
IN THE UPPER 60S IN THE MOUNTAINS. HIGHS AROUND 101 IN THE  
VALLEYS AND IN THE UPPER 80S IN THE MOUNTAINS.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 70S IN THE VALLEYS  
AND IN THE UPPER 60S IN THE MOUNTAINS. HIGHS AROUND 101 IN THE  
VALLEYS AND IN THE UPPER 80S IN THE MOUNTAINS.  
=  
 

 
 
UTZ498-140030-  
GRAND STAIRCASE-  
156 AM MDT THU AUG 13 2026  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80% CLOUD COVER). SCATTERED  
RAIN SHOWERS. SCATTERED THUNDERSTORMS AFTER  
1200.  
CHANCE LIGHTNING....20% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................40%.  
MAX TEMPERATURE.....84-94 NEAR 4000 FEET.  
75-84 NEAR 6000 FEET.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........23-33% NEAR 4000 FEET.  
39-49% NEAR 6000 FEET.  
24 HR TREND......5% WETTER NEAR 4000 FEET.  
14% WETTER NEAR 6000 FEET.  
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO  
AROUND 30 MPH.  
12K FT MSL WINDS....WEST 15-20 MPH.  
MIXING HEIGHT.......9100 FT AGL (50-60TH PERCENTILE).  
CLEARING INDEX......1000+.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90% CLOUD COVER). SCATTERED  
THUNDERSTORMS UNTIL 2400. SCATTERED RAIN  
SHOWERS. ISOLATED THUNDERSTORMS AFTER 2400.  
CHANCE LIGHTNING....40% DECREASING TO 20% AFTER MIDNIGHT.  
CWR.................20%.  
MIN TEMPERATURE.....64-72 NEAR 4000 FEET.  
54-64 NEAR 6000 FEET.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........57-67% NEAR 4000 FEET.  
71-81% NEAR 6000 FEET.  
24 HR TREND......3% DRIER.  
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH.  
12K FT MSL WINDS....SOUTHWEST AROUND 15 MPH.  
   
FRIDAY
 
 
SKY/WEATHER.........CLOUDY (90-100% CLOUD COVER). NUMEROUS RAIN  
SHOWERS AND ISOLATED THUNDERSTORMS UNTIL 1200.  
SCATTERED SHOWERS AND THUNDERSTORMS AFTER 1200.  
CHANCE LIGHTNING....20% INCREASING TO 50% IN THE AFTERNOON.  
CWR.................40%.  
MAX TEMPERATURE.....82-92 NEAR 4000 FEET.  
73-83 NEAR 6000 FEET.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........22-32% NEAR 4000 FEET.  
39-49% NEAR 6000 FEET.  
24 HR TREND......1% DRIER.  
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH.  
12K FT MSL WINDS....SOUTHWEST 10-15 MPH.  
MIXING HEIGHT.......9700 FT AGL (50-60TH PERCENTILE).  
CLEARING INDEX......1000+.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY. SCATTERED RAIN SHOWERS. LOWS IN THE  
MID 60S IN THE VALLEYS AND IN THE MID 50S IN THE MOUNTAINS. HIGHS  
IN THE LOWER 90S IN THE VALLEYS AND AROUND 80 IN THE MOUNTAINS.  
WINDS GENERALLY LESS THAN 15 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 60S IN THE VALLEYS AND  
IN THE UPPER 50S IN THE MOUNTAINS. HIGHS IN THE MID 90S IN THE  
VALLEYS AND IN THE LOWER 80S IN THE MOUNTAINS. WINDS GENERALLY  
LESS THAN 15 MPH.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 60S IN THE VALLEYS AND  
IN THE UPPER 50S IN THE MOUNTAINS. HIGHS IN THE UPPER 90S IN THE  
VALLEYS AND IN THE MID 80S IN THE MOUNTAINS. WINDS GENERALLY LESS  
THAN 15 MPH.    
TUESDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 70S IN THE VALLEYS AND  
IN THE LOWER 60S IN THE MOUNTAINS. HIGHS IN THE UPPER 90S IN THE  
VALLEYS AND IN THE UPPER 80S IN THE MOUNTAINS.    
WEDNESDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 70S IN THE VALLEYS  
AND IN THE LOWER 60S IN THE MOUNTAINS. HIGHS IN THE UPPER 90S IN  
THE VALLEYS AND IN THE UPPER 80S IN THE MOUNTAINS.  
=  
 

 
 
.8-14 DAY OUTLOOK FOR THURSDAY AUGUST 20 TO WEDNESDAY AUGUST 26  
TEMPERATURE... ABOVE NORMAL  
PRECIPITATION... ABOVE NORMAL  
=  
 

 
 
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