Glacier County climate

Glacier County Weather in October

NOAA 1991-2020 normals for St. Mary 1 Ssw, 32.4 km from Glacier County

Average highs run from 56°F on October 1 to 43°F on October 31, and lows from 35°F to 28°F. Normal precipitation for the month is 2.17 in over about 12 wet days.

October day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Glacier County, in °F, with the record for each date.-250255075100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
49°F
Average low
32°F
Precipitation
2.17 in
Record high
88°FOct 1, 1992
Record low
-14°FOct 26, 1919
Chance of a freeze
100%
Daylight
11 h 38 min to 9 h 56 min
Cloud cover
68%
Humidity
74%
Dew point
29°F
Wind
9.2 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
Oct 156°F35°F88°F 19921°F 201934%
Oct 255°F35°F85°F 19638°F 201934%
Oct 355°F35°F86°F 194310°F 195034%
Oct 454°F35°F85°F 194311°F 201735%
Oct 554°F34°F82°F 202111°F 200035%
Oct 653°F34°F85°F 19609°F 200035%
Oct 753°F34°F84°F 193311°F 197036%
Oct 852°F34°F83°F 19846°F 198536%
Oct 952°F33°F83°F 1971-2°F 193237%
Oct 1051°F33°F85°F 1991-3°F 201937%
Oct 1151°F33°F86°F 199112°F 192238%
Oct 1251°F33°F85°F 1964-3°F 200938%
Oct 1350°F32°F85°F 19649°F 202139%
Oct 1450°F32°F83°F 19618°F 196639%
Oct 1549°F32°F81°F 196111°F 193039%
Oct 1649°F32°F81°F 19279°F 193040%
Oct 1748°F31°F77°F 19633°F 193040%
Oct 1848°F31°F79°F 202210°F 193041%
Oct 1948°F31°F80°F 202312°F 198241%
Oct 2047°F31°F78°F 20142°F 193341%
Oct 2147°F30°F76°F 192710°F 195142%
Oct 2246°F30°F79°F 19656°F 190842%
Oct 2346°F30°F81°F 19655°F 202043%
Oct 2446°F30°F75°F 1929-10°F 202043%
Oct 2545°F30°F75°F 1924-12°F 191943%
Oct 2645°F29°F79°F 1944-14°F 191944%
Oct 2745°F29°F76°F 1912-2°F 192544%
Oct 2844°F29°F76°F 2008-5°F 192545%
Oct 2944°F29°F79°F 1912-14°F 199145%
Oct 3043°F29°F73°F 1983-14°F 199145%
Oct 3143°F28°F67°F 1958-12°F 198445%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Glacier County, in percent.010203040501102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (MDT).

October 1
sunrise 7:32 AM, sunset 7:10 PM
October 31
sunrise 8:17 AM, sunset 6:13 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00004130 (St. Mary 1 Ssw), public domain. Records: NOAA GHCN-Daily, station USW00024137, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.