934
CDUS45 KTFX 182240
CLILWT
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MDT TUE AUG 18 2026
...............................
..THE LEWISTOWN MT CLIMATE SUMMARY FOR AUGUST 18 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 97 1964 81 MM 86
MINIMUM MM MM 33 1902 49 MM 50
AVERAGE MM 65 MM 68
PRECIPITATION (IN)
TODAY 0.00 0.90 2016 0.05 -0.05 T
MONTH TO DATE T 0.98 -0.98 1.73
SINCE OCT 1 16.10 15.07 1.03 14.24
SINCE JAN 1 13.51 12.62 0.89 12.87
DEGREE DAYS
HEATING
TODAY MM 3 MM 0
MONTH TO DATE 24 29 -5 18
SINCE JUN 1 326 320 6 263
SINCE JUL 1 39 94 -55 69
COOLING
TODAY MM 3 MM 3
MONTH TO DATE 42 66 -24 44
SINCE JUN 1 252 184 68 123
SINCE JAN 1 265 185 80 126
...............................................................
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) 81 97 2008
MINIMUM TEMPERATURE (F) 49 31 1907
SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE 619 AM MDT SUNSET 823 PM MDT
AUGUST 19 2026........SUNRISE 620 AM MDT SUNSET 822 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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