Is this weather normal in Blaine County?

Montana · county records since 1895, through September 2026.

Weather › Montana › Blaine County

Blaine County has warmed about 0.4° per decade since 1970. September 2026 averaged 58.0° there, 1.5° above the usual for September (30th warmest of 132).

This week

Usual for Oct 28 to Nov 3: highs near 49°, lows near 25°

That is the 1991 to 2020 average for these dates in Blaine County. The Weather Service forecast fills in below.

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usual high for the datewarmercooler

The last 12 months

Oct: +2.5°OctNov: +2.9°NovDec: +2.3°DecJan 2026: +6.7°JanFeb: +9.5°FebMar: +5.0°MarApr: -1.1°AprMay: +3.2°MayJun: -3.2°JunJul: +4.7°JulAug: -0.1°AugSep: +1.5°Sepwarmercooler

Each bar is a month's average temperature against the usual for that month (1991 to 2020). Ranks compare the same month in every year since 1895.

Every year since 1895

18952025

Rain and drought

Oct: -0.6 inOctNov: +0.5 inNovDec: +1.2 inDecJan 2026: -0.5 inJanFeb: -0.3 inFebMar: +0.1 inMarApr: +0.2 inAprMay: -0.5 inMayJun: +1.3 inJunJul: -1.3 inJulAug: -0.2 inAugSep: +0.6 inSepwetterdrier

Rain and melted snow against the usual for each month. The drought reading is NOAA's Palmer index for the county.

Month by month in Blaine County

MonthUsual high / lowUsual rainWarmestColdest
January29° / 8°0.6 in32.3° 2006-12.9° 1950
February33° / 10°0.5 in35.0° 1991-13.2° 1936
March43° / 20°0.7 in43.2° 19107.1° 1899
April55° / 30°1.2 in52.6° 191032.8° 1907
May65° / 39°2.3 in60.6° 193643.8° 1899
June74° / 48°3.1 in71.0° 198853.6° 1951
July83° / 53°1.6 in76.8° 193658.8° 1993
August82° / 51°1.2 in73.0° 197160.4° 1977
September71° / 42°1.2 in63.0° 193844.9° 1965
October56° / 31°0.9 in51.3° 196331.8° 1925
November41° / 20°0.6 in40.6° 20166.5° 1896
December31° / 11°0.5 in32.4° 2023-2.9° 1983

Warmest and coldest are the month's whole-month average temperature, with the year it happened.

Towns in Blaine County

Nearby counties