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As of 05:47 MDT

Weather in Garrison, MT

33°Current weather

Garrison, Sunday, 11 October, 05:47

Snow. Feels like 29°. High 34°, low 29°.

Pressure29.97 inHg
Wind4.2 mph SE
Humidity94%
Visibility3.3 mi
Dew point31°
Mon, 1238° / 25°0.07Snow
38 °Snow

Garrison, Monday, 12 October

Snow. High 38°, low 25°.

Pressure30.12 inHg
Wind5.5 mph E
Humidity92%
Visibility6.2 mi
Dew point26°
Tue, 1345° / 25°0Clear
45 °Clear

Garrison, Tuesday, 13 October

Clear. High 45°, low 25°.

Pressure30.12 inHg
Wind2.6 mph W
Humidity73%
Visibility6.2 mi
Dew point28°
Wed, 1449° / 26°0Clear
49 °Clear

Garrison, Wednesday, 14 October

Clear. High 49°, low 26°.

Pressure30.24 inHg
Wind1.2 mph SW
Humidity62%
Visibility6.2 mi
Dew point22°
Thu, 1553° / 34°0Clear
53 °Clear

Garrison, Thursday, 15 October

Clear. High 53°, low 34°.

Pressure30.53 inHg
Wind8.5 mph E
Humidity53%
Visibility—
Dew point30°
Fri, 1661° / 34°0Clear
61 °Clear

Garrison, Friday, 16 October

Clear. High 61°, low 34°.

Pressure30.39 inHg
Wind6.9 mph E
Humidity42%
Visibility—
Dew point29°
Sat, 1763° / 39°0Overcast
63 °Overcast

Garrison, Saturday, 17 October

Overcast. High 63°, low 39°.

Pressure30.12 inHg
Wind6.6 mph SW
Humidity44%
Visibility—
Dew point32°
Sun, 1864° / 47°0Overcast
64 °Overcast

Garrison, Sunday, 18 October

Overcast. High 64°, low 47°.

Pressure30.00 inHg
Wind5.7 mph SW
Humidity38%
Visibility—
Dew point31°
Mon, 1960° / 43°0Partly cloudy
60 °Partly cloudy

Garrison, Monday, 19 October

Partly cloudy. High 60°, low 43°.

Pressure29.94 inHg
Wind12.8 mph NW
Humidity47%
Visibility—
Dew point34°
Tue, 2051° / 36°0Overcast
51 °Overcast

Garrison, Tuesday, 20 October

Overcast. High 51°, low 36°.

Pressure30.00 inHg
Wind12.5 mph NW
Humidity51%
Visibility—
Dew point28°
Wed, 2152° / 33°0Overcast
52 °Overcast

Garrison, Wednesday, 21 October

Overcast. High 52°, low 33°.

Pressure30.15 inHg
Wind4.4 mph N
Humidity40%
Visibility—
Dew point22°
Thu, 2259° / 40°0.06Light rain
59 °Light rain

Garrison, Thursday, 22 October

Light rain. High 59°, low 40°.

Pressure29.94 inHg
Wind4.2 mph SE
Humidity32%
Visibility—
Dew point22°
Fri, 2354° / 39°0Mostly clear
54 °Mostly clear

Garrison, Friday, 23 October

Mostly clear. High 54°, low 39°.

Pressure30.24 inHg
Wind6.1 mph NW
Humidity61%
Visibility—
Dew point34°
Sat, 2456° / 37°0Overcast
56 °Overcast

Garrison, Saturday, 24 October

Overcast. High 56°, low 37°.

Pressure30.36 inHg
Wind4.1 mph NW
Humidity52%
Visibility—
Dew point31°
Sun, 2561° / 39°0Clear
61 °Clear

Garrison, Sunday, 25 October

Clear. High 61°, low 39°.

Pressure30.36 inHg
Wind3.3 mph S
Humidity43%
Visibility—
Dew point29°
Mon, 2663° / 41°0Clear
63 °Clear

Garrison, Monday, 26 October

Clear. High 63°, low 41°.

Pressure30.12 inHg
Wind4.1 mph S
Humidity28%
Visibility—
Dew point22°

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.