270  
CDUS45 KTFX 272240  
CLILWT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
440 PM MDT SUN SEP 27 2026  
   
...............................
 
 
   
..THE LEWISTOWN MT CLIMATE SUMMARY FOR SEPTEMBER 27 2026
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1896 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM MM MM 88 1963 65 MM 82  
MINIMUM MM MM 17 1900 38 MM 37  
AVERAGE MM 52 MM 60  
 
PRECIPITATION (IN)  
TODAY 0.00 0.98 2014 0.05 -0.05 0.00  
MONTH TO DATE 0.93 1.25 -0.32 0.95  
SINCE OCT 1 17.49 17.03 0.46 15.84  
SINCE JAN 1 14.90 14.58 0.32 14.47  
 
DEGREE DAYS  
HEATING  
TODAY MM 14 MM 5  
MONTH TO DATE 155 248 -93 126  
SINCE SEP 1 155 248 -93 126  
SINCE JUL 1 219 394 -175 200  
 
COOLING  
TODAY MM 0 MM 0  
MONTH TO DATE 17 14 3 11  
SINCE SEP 1 17 14 3 11  
SINCE JAN 1 338 224 114 163    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED MM HIGHEST WIND DIRECTION MM  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED MM  
 
SKY COVER  
AVERAGE SKY COVER MM  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................
 
 
THE LEWISTOWN MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 87 1910  
MINIMUM TEMPERATURE (F) 38 17 1984  
 
SUNRISE AND SUNSET  
SEPTEMBER 27 2026.....SUNRISE 711 AM MDT SUNSET 705 PM MDT  
SEPTEMBER 28 2026.....SUNRISE 713 AM MDT SUNSET 703 PM MDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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