Hourly Weather Forecast - Garrison, MT

12 AM
22°F
10%
5mph
SSW
Mostly Cloudy
Humidity
71%
Feels like
16°F
Dew Point
15°F
1 AM
22°F
10%
4mph
SSW
Partly Cloudy
Humidity
72%
Feels like
16°F
Dew Point
14°F
2 AM
22°F
10%
4mph
S
Clear
Humidity
73%
Feels like
16°F
Dew Point
14°F
3 AM
21°F
10%
4mph
S
Clear
Humidity
73%
Feels like
16°F
Dew Point
14°F
4 AM
21°F
10%
4mph
S
Mostly Clear
Humidity
74%
Feels like
16°F
Dew Point
14°F
5 AM
21°F
10%
3mph
S
Mostly Clear
Humidity
74%
Feels like
16°F
Dew Point
14°F
6 AM
20°F
10%
3mph
S
Mostly Clear
Humidity
76%
Feels like
16°F
Dew Point
14°F
7 AM
20°F
10%
3mph
S
Partly Cloudy
Humidity
77%
Feels like
20°F
Dew Point
15°F
8 AM
21°F
10%
3mph
S
Partly Cloudy
Humidity
78%
Feels like
21°F
Dew Point
15°F
8:12 AM
9 AM
23°F
10%
2mph
S
Partly Cloudy
Humidity
78%
Feels like
23°F
Dew Point
17°F
10 AM
25°F
10%
2mph
S
Partly Cloudy
Humidity
76%
Feels like
25°F
Dew Point
19°F
11 AM
27°F
10%
2mph
S
Partly Cloudy
Humidity
75%
Feels like
27°F
Dew Point
20°F
12 PM
29°F
10%
2mph
S
Partly Cloudy
Humidity
72%
Feels like
29°F
Dew Point
21°F
1 PM
32°F
10%
3mph
S
Mostly Cloudy
Humidity
68%
Feels like
32°F
Dew Point
22°F
2 PM
33°F
10%
3mph
S
Mostly Cloudy
Humidity
66%
Feels like
33°F
Dew Point
23°F
3 PM
33°F
20%
3mph
S
Mostly Cloudy
Humidity
67%
Feels like
31°F
Dew Point
24°F
4 PM
33°F
30%
4mph
S
30% Chance Snow Showers
Humidity
71%
Feels like
29°F
Dew Point
24°F
4:46 PM
5 PM
32°F
30%
4mph
SSW
30% Chance of Snow
Humidity
75%
Feels like
28°F
Dew Point
25°F
6 PM
32°F
30%
4mph
SSW
30 % Chance of Heavy Snow
Humidity
77%
Feels like
28°F
Dew Point
26°F
7 PM
32°F
30%
4mph
S
30 % Chance of Heavy Snow
Humidity
80%
Feels like
28°F
Dew Point
26°F
8 PM
32°F
30%
4mph
S
30 % Chance of Heavy Snow
Humidity
82%
Feels like
28°F
Dew Point
27°F
9 PM
32°F
30%
4mph
S
30% Chance of Snow
Humidity
83%
Feels like
28°F
Dew Point
27°F
10 PM
32°F
20%
4mph
S
Partly Cloudy
Humidity
83%
Feels like
28°F
Dew Point
27°F
11 PM
32°F
30%
4mph
S
30% Chance Snow Showers
Humidity
84%
Feels like
28°F
Dew Point
28°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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