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As of 14:47 MDT

Weather in Garrison, MT

41°Current weather

Garrison, Monday, 12 October, 14:47

Overcast. Feels like 41°. High 41°, low 28°.

Pressure30.00 inHg
Wind0.5 mph S
Humidity77%
Visibility6.2 mi
Dew point34°
Tue, 1345° / 27°0Clear
45 °Clear

Garrison, Tuesday, 13 October

Clear. High 45°, low 27°.

Pressure30.18 inHg
Wind3.5 mph W
Humidity75%
Visibility4.6 mi
Dew point27°
Wed, 1450° / 30°0Overcast
50 °Overcast

Garrison, Wednesday, 14 October

Overcast. High 50°, low 30°.

Pressure30.24 inHg
Wind4 mph W
Humidity61%
Visibility6.2 mi
Dew point25°
Thu, 1555° / 31°0Clear
55 °Clear

Garrison, Thursday, 15 October

Clear. High 55°, low 31°.

Pressure30.56 inHg
Wind5.7 mph E
Humidity53%
Visibility6.2 mi
Dew point32°
Fri, 1663° / 35°0Clear
63 °Clear

Garrison, Friday, 16 October

Clear. High 63°, low 35°.

Pressure30.39 inHg
Wind3.4 mph SE
Humidity40%
Visibility6.2 mi
Dew point26°
Sat, 1765° / 36°0Partly cloudy
65 °Partly cloudy

Garrison, Saturday, 17 October

Partly cloudy. High 65°, low 36°.

Pressure30.03 inHg
Wind7 mph W
Humidity36%
Visibility—
Dew point29°
Sun, 1859° / 40°0Partly cloudy
59 °Partly cloudy

Garrison, Sunday, 18 October

Partly cloudy. High 59°, low 40°.

Pressure30.03 inHg
Wind3.4 mph NW
Humidity55%
Visibility—
Dew point35°
Mon, 1971° / 43°0Overcast
71 °Overcast

Garrison, Monday, 19 October

Overcast. High 71°, low 43°.

Pressure29.77 inHg
Wind10.4 mph S
Humidity34%
Visibility—
Dew point31°
Tue, 2054° / 44°0.21Rain
54 °Rain

Garrison, Tuesday, 20 October

Rain. High 54°, low 44°.

Pressure29.71 inHg
Wind7.6 mph W
Humidity63%
Visibility—
Dew point38°
Wed, 2143° / 36°0.57Snow
43 °Snow

Garrison, Wednesday, 21 October

Snow. High 43°, low 36°.

Pressure29.97 inHg
Wind5.6 mph NE
Humidity97%
Visibility—
Dew point38°
Thu, 2243° / 32°0Overcast
43 °Overcast

Garrison, Thursday, 22 October

Overcast. High 43°, low 32°.

Pressure30.09 inHg
Wind5.5 mph NW
Humidity82%
Visibility—
Dew point34°
Fri, 2353° / 31°0Mostly clear
53 °Mostly clear

Garrison, Friday, 23 October

Mostly clear. High 53°, low 31°.

Pressure30.15 inHg
Wind8.1 mph NW
Humidity62%
Visibility—
Dew point30°
Sat, 2456° / 39°0.08Light rain
56 °Light rain

Garrison, Saturday, 24 October

Light rain. High 56°, low 39°.

Pressure30.03 inHg
Wind5.1 mph NW
Humidity59%
Visibility—
Dew point36°
Sun, 2549° / 40°0.02Light rain
49 °Light rain

Garrison, Sunday, 25 October

Light rain. High 49°, low 40°.

Pressure30.12 inHg
Wind12.3 mph W
Humidity75%
Visibility—
Dew point38°
Mon, 2649° / 38°0.01Light rain
49 °Light rain

Garrison, Monday, 26 October

Light rain. High 49°, low 38°.

Pressure29.97 inHg
Wind10.4 mph W
Humidity66%
Visibility—
Dew point36°
Tue, 2748° / 34°0.02Light rain
48 °Light rain

Garrison, Tuesday, 27 October

Light rain. High 48°, low 34°.

Pressure30.06 inHg
Wind13.1 mph W
Humidity52%
Visibility—
Dew point28°

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.