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As of 15:25 MDT

Weather in Garrison, MT

34°Current weather

Garrison, Sunday, 11 October, 15:25

Snow. Feels like 28°. High 34°, low 29°.

Pressure29.91 inHg
Wind6.8 mph E
Humidity89%
Visibility2.2 mi
Dew point31°
Mon, 1237° / 25°0.07Snow
37 °Snow

Garrison, Monday, 12 October

Snow. High 37°, low 25°.

Pressure30.09 inHg
Wind4.9 mph E
Humidity93%
Visibility6.2 mi
Dew point26°
Tue, 1342° / 23°0Clear
42 °Clear

Garrison, Tuesday, 13 October

Clear. High 42°, low 23°.

Pressure30.18 inHg
Wind2.8 mph W
Humidity78%
Visibility6.2 mi
Dew point27°
Wed, 1447° / 27°0Clear
47 °Clear

Garrison, Wednesday, 14 October

Clear. High 47°, low 27°.

Pressure30.24 inHg
Wind2.8 mph W
Humidity67%
Visibility6.2 mi
Dew point24°
Thu, 1551° / 30°0Clear
51 °Clear

Garrison, Thursday, 15 October

Clear. High 51°, low 30°.

Pressure30.59 inHg
Wind6.8 mph E
Humidity60%
Visibility6.2 mi
Dew point32°
Fri, 1662° / 34°0Partly cloudy
62 °Partly cloudy

Garrison, Friday, 16 October

Partly cloudy. High 62°, low 34°.

Pressure30.42 inHg
Wind4.7 mph E
Humidity41%
Visibility—
Dew point28°
Sat, 1769° / 39°0Partly cloudy
69 °Partly cloudy

Garrison, Saturday, 17 October

Partly cloudy. High 69°, low 39°.

Pressure30.03 inHg
Wind8.1 mph SW
Humidity43%
Visibility—
Dew point34°
Sun, 1864° / 46°0Overcast
64 °Overcast

Garrison, Sunday, 18 October

Overcast. High 64°, low 46°.

Pressure29.97 inHg
Wind13.4 mph NW
Humidity44%
Visibility—
Dew point34°
Mon, 1969° / 44°0Overcast
69 °Overcast

Garrison, Monday, 19 October

Overcast. High 69°, low 44°.

Pressure29.85 inHg
Wind8.7 mph S
Humidity38%
Visibility—
Dew point32°
Tue, 2051° / 39°0Overcast
51 °Overcast

Garrison, Tuesday, 20 October

Overcast. High 51°, low 39°.

Pressure29.80 inHg
Wind22.5 mph W
Humidity49%
Visibility—
Dew point28°
Wed, 2149° / 33°0Overcast
49 °Overcast

Garrison, Wednesday, 21 October

Overcast. High 49°, low 33°.

Pressure29.85 inHg
Wind9.2 mph W
Humidity47%
Visibility—
Dew point23°
Thu, 2246° / 35°0.02Light rain
46 °Light rain

Garrison, Thursday, 22 October

Light rain. High 46°, low 35°.

Pressure30.09 inHg
Wind11.1 mph NW
Humidity72%
Visibility—
Dew point33°
Fri, 2347° / 35°0.02Light snow
47 °Light snow

Garrison, Friday, 23 October

Light snow. High 47°, low 35°.

Pressure30.56 inHg
Wind7.3 mph NW
Humidity61%
Visibility—
Dew point28°
Sat, 2452° / 30°0Clear
52 °Clear

Garrison, Saturday, 24 October

Clear. High 52°, low 30°.

Pressure30.50 inHg
Wind4.2 mph NW
Humidity45%
Visibility—
Dew point22°
Sun, 2554° / 34°0Mostly clear
54 °Mostly clear

Garrison, Sunday, 25 October

Mostly clear. High 54°, low 34°.

Pressure30.33 inHg
Wind12.3 mph NE
Humidity39%
Visibility—
Dew point23°
Mon, 2648° / 31°0Overcast
48 °Overcast

Garrison, Monday, 26 October

Overcast. High 48°, low 31°.

Pressure30.30 inHg
Wind3.9 mph E
Humidity57%
Visibility—
Dew point27°

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.