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As of 23:34 MDT

Weather in Garrison, MT

34°Current weather

Garrison, Saturday, 10 October, 23:34

Light snow. Feels like 28°. High 50°, low 34°.

Pressure29.97 inHg
Wind7.2 mph SE
Humidity91%
Visibility3.6 mi
Dew point32°
Sun, 1135° / 30°0.37Snow
35 °Snow

Garrison, Sunday, 11 October

Snow. High 35°, low 30°.

Pressure30.00 inHg
Wind7.3 mph E
Humidity94%
Visibility6.2 mi
Dew point25°
Mon, 1237° / 26°0.12Snow
37 °Snow

Garrison, Monday, 12 October

Snow. High 37°, low 26°.

Pressure30.12 inHg
Wind5.4 mph E
Humidity91%
Visibility6.2 mi
Dew point26°
Tue, 1344° / 25°0Clear
44 °Clear

Garrison, Tuesday, 13 October

Clear. High 44°, low 25°.

Pressure30.15 inHg
Wind2.6 mph W
Humidity75%
Visibility6.2 mi
Dew point28°
Wed, 1449° / 27°0Clear
49 °Clear

Garrison, Wednesday, 14 October

Clear. High 49°, low 27°.

Pressure30.27 inHg
Wind0.9 mph S
Humidity60%
Visibility6.2 mi
Dew point21°
Thu, 1554° / 34°0Clear
54 °Clear

Garrison, Thursday, 15 October

Clear. High 54°, low 34°.

Pressure30.47 inHg
Wind7.6 mph E
Humidity51%
Visibility—
Dew point30°
Fri, 1659° / 34°0Partly cloudy
59 °Partly cloudy

Garrison, Friday, 16 October

Partly cloudy. High 59°, low 34°.

Pressure30.39 inHg
Wind6.5 mph E
Humidity51%
Visibility—
Dew point32°
Sat, 1765° / 40°0Overcast
65 °Overcast

Garrison, Saturday, 17 October

Overcast. High 65°, low 40°.

Pressure30.15 inHg
Wind7.4 mph W
Humidity41%
Visibility—
Dew point31°
Sun, 1869° / 47°0Overcast
69 °Overcast

Garrison, Sunday, 18 October

Overcast. High 69°, low 47°.

Pressure30.06 inHg
Wind11.8 mph W
Humidity34%
Visibility—
Dew point32°
Mon, 1968° / 47°0Overcast
68 °Overcast

Garrison, Monday, 19 October

Overcast. High 68°, low 47°.

Pressure30.03 inHg
Wind11 mph W
Humidity34%
Visibility—
Dew point31°
Tue, 2056° / 44°0Partly cloudy
56 °Partly cloudy

Garrison, Tuesday, 20 October

Partly cloudy. High 56°, low 44°.

Pressure30.03 inHg
Wind20.6 mph W
Humidity45%
Visibility—
Dew point32°
Wed, 2156° / 38°0Overcast
56 °Overcast

Garrison, Wednesday, 21 October

Overcast. High 56°, low 38°.

Pressure30.12 inHg
Wind4.3 mph NW
Humidity36%
Visibility—
Dew point23°
Thu, 2262° / 41°0Partly cloudy
62 °Partly cloudy

Garrison, Thursday, 22 October

Partly cloudy. High 62°, low 41°.

Pressure30.15 inHg
Wind4 mph S
Humidity33%
Visibility—
Dew point25°
Fri, 2365° / 44°0Overcast
65 °Overcast

Garrison, Friday, 23 October

Overcast. High 65°, low 44°.

Pressure30.15 inHg
Wind2.8 mph N
Humidity39%
Visibility—
Dew point32°
Sat, 2465° / 44°0Clear
65 °Clear

Garrison, Saturday, 24 October

Clear. High 65°, low 44°.

Pressure30.09 inHg
Wind3.5 mph NW
Humidity33%
Visibility—
Dew point28°
Sun, 2566° / 47°0Overcast
66 °Overcast

Garrison, Sunday, 25 October

Overcast. High 66°, low 47°.

Pressure29.97 inHg
Wind9.8 mph NW
Humidity29%
Visibility—
Dew point26°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Garrison, MT are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Garrison, MT since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.