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As of 02:10 MDT

Weather in Garrison, MT

47°Current weather

Garrison, Friday, 9 October, 02:10

Overcast. Feels like 47°. High 75°, low 44°.

Pressure29.88 inHg
Wind0.7 mph E
Humidity55%
Visibility6.2 mi
Dew point31°
Sat, 1047° / 32°0.42Snow
47 °Snow

Garrison, Saturday, 10 October

Snow. High 47°, low 32°.

Pressure29.77 inHg
Wind5 mph NW
Humidity96%
Visibility2.1 mi
Dew point39°
Sun, 1132° / 28°0.31Snow
32 °Snow

Garrison, Sunday, 11 October

Snow. High 32°, low 28°.

Pressure30.06 inHg
Wind8.1 mph E
Humidity94%
Visibility6.2 mi
Dew point24°
Mon, 1237° / 27°0.16Snow
37 °Snow

Garrison, Monday, 12 October

Snow. High 37°, low 27°.

Pressure30.12 inHg
Wind5.7 mph E
Humidity90%
Visibility6.2 mi
Dew point25°
Tue, 1343° / 24°0Partly cloudy
43 °Partly cloudy

Garrison, Tuesday, 13 October

Partly cloudy. High 43°, low 24°.

Pressure30.12 inHg
Wind0.8 mph SW
Humidity76%
Visibility—
Dew point29°
Wed, 1452° / 30°0.01Light rain
52 °Light rain

Garrison, Wednesday, 14 October

Light rain. High 52°, low 30°.

Pressure30.00 inHg
Wind11.6 mph NW
Humidity61%
Visibility—
Dew point30°
Thu, 1542° / 28°0.24Snow
42 °Snow

Garrison, Thursday, 15 October

Snow. High 42°, low 28°.

Pressure30.50 inHg
Wind11.3 mph NE
Humidity62%
Visibility—
Dew point26°
Fri, 1648° / 22°0Clear
48 °Clear

Garrison, Friday, 16 October

Clear. High 48°, low 22°.

Pressure30.59 inHg
Wind4 mph S
Humidity39%
Visibility—
Dew point15°
Sat, 1758° / 35°0Overcast
58 °Overcast

Garrison, Saturday, 17 October

Overcast. High 58°, low 35°.

Pressure30.27 inHg
Wind4.3 mph NW
Humidity33%
Visibility—
Dew point20°
Sun, 1859° / 37°0Mostly clear
59 °Mostly clear

Garrison, Sunday, 18 October

Mostly clear. High 59°, low 37°.

Pressure30.27 inHg
Wind5.2 mph SE
Humidity42%
Visibility—
Dew point28°
Mon, 1964° / 38°0Clear
64 °Clear

Garrison, Monday, 19 October

Clear. High 64°, low 38°.

Pressure30.06 inHg
Wind6.4 mph NW
Humidity34%
Visibility—
Dew point25°
Tue, 2060° / 38°0Mostly clear
60 °Mostly clear

Garrison, Tuesday, 20 October

Mostly clear. High 60°, low 38°.

Pressure30.06 inHg
Wind4.2 mph NW
Humidity30%
Visibility—
Dew point21°
Wed, 2157° / 41°0Partly cloudy
57 °Partly cloudy

Garrison, Wednesday, 21 October

Partly cloudy. High 57°, low 41°.

Pressure30.18 inHg
Wind5 mph NW
Humidity38%
Visibility—
Dew point26°
Thu, 2261° / 37°0Clear
61 °Clear

Garrison, Thursday, 22 October

Clear. High 61°, low 37°.

Pressure30.24 inHg
Wind4.4 mph NW
Humidity30%
Visibility—
Dew point21°
Fri, 2368° / 42°0Clear
68 °Clear

Garrison, Friday, 23 October

Clear. High 68°, low 42°.

Pressure29.94 inHg
Wind16.3 mph W
Humidity22%
Visibility—
Dew point20°
Sat, 2458° / 42°0Mostly clear
58 °Mostly clear

Garrison, Saturday, 24 October

Mostly clear. High 58°, low 42°.

Pressure30.06 inHg
Wind3.2 mph SW
Humidity31%
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.