Is this weather normal in Lake County?

Montana · county records since 1895, through September 2026.

Weather › Montana › Lake County

The last 12 months brought 31.3 inches of rain and snow to Lake County, 126% of the usual 24.8. Lake County has warmed about 0.6° per decade since 1970.

This week

Usual for Oct 28 to Nov 3: highs near 46°, lows near 29°

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

Loading the forecast...

usual high for the datewarmercooler

The last 12 months

Oct: -0.1°OctNov: +4.5°NovDec: +7.4°DecJan 2026: +3.3°JanFeb: +6.3°FebMar: +3.2°MarApr: +0.9°AprMay: +2.5°MayJun: -0.3°JunJul: +3.9°JulAug: +1.8°AugSep: -0.7°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: +1.0 inOctNov: +0.9 inNovDec: +2.5 inDecJan 2026: -1.1 inJanFeb: -0.2 inFebMar: +1.9 inMarApr: +0.3 inAprMay: +1.2 inMayJun: +0.5 inJunJul: -1.0 inJulAug: -0.6 inAugSep: +1.2 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 Lake County

MonthUsual high / lowUsual rainWarmestColdest
January32° / 20°2.4 in35.0° 19530.9° 1937
February35° / 20°1.9 in34.9° 19255.1° 1936
March45° / 26°2.0 in40.7° 199224.1° 1917
April53° / 31°2.3 in48.9° 201636.3° 1975
May63° / 39°2.5 in58.0° 189744.3° 1916
June69° / 45°3.0 in65.2° 201550.3° 1901
July80° / 51°1.1 in72.5° 200755.5° 1993
August79° / 50°1.0 in68.8° 202257.5° 1899
September69° / 42°1.5 in62.5° 202545.0° 1965
October53° / 33°2.2 in49.1° 201536.0° 1919
November39° / 25°2.4 in39.1° 201618.2° 1985
December31° / 20°2.4 in33.0° 192512.4° 1983

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

Towns in Lake County

Crime Radar: Polson

Nearby counties