Hourly Weather Forecast - Garrison, MT

5 AM
43°F
70%
11mph
SSW
70% Chance of Light Rain
Humidity
72%
Feels like
37°F
Dew Point
35°F
6 AM
43°F
70%
13mph
SSW
70% Chance Rain Showers
Humidity
77%
Feels like
36°F
Dew Point
36°F
7 AM
43°F
90%
14mph
SW
Light Rain
Humidity
82%
Feels like
35°F
Dew Point
38°F
8 AM
41°F
80%
16mph
SW
80% Chance Rain Showers
Humidity
84%
Feels like
33°F
Dew Point
37°F
8:09 AM
9 AM
39°F
50%
20mph
WSW
50% Chance of Snow
Humidity
79%
Feels like
29°F
Dew Point
33°F
10 AM
35°F
30%
26mph
W
30% Chance of Heavy Snow
Humidity
71%
Feels like
22°F
Dew Point
27°F
11 AM
32°F
30%
28mph
W
30% Chance of Heavy Snow
Humidity
64%
Feels like
18°F
Dew Point
21°F
12 PM
31°F
30%
30mph
W
30% Chance of Snow
Humidity
61%
Feels like
16°F
Dew Point
19°F
1 PM
30°F
30%
31mph
W
30% Chance of Snow
Humidity
58%
Feels like
14°F
Dew Point
17°F
2 PM
29°F
10%
30mph
W
Windy
Humidity
57%
Feels like
13°F
Dew Point
16°F
3 PM
28°F
30%
30mph
W
30% Chance of Snow
Humidity
57%
Feels like
12°F
Dew Point
15°F
4 PM
27°F
0%
29mph
W
Windy
Humidity
59%
Feels like
12°F
Dew Point
15°F
4:45 PM
5 PM
27°F
10%
26mph
W
Windy
Humidity
61%
Feels like
11°F
Dew Point
15°F
6 PM
27°F
10%
25mph
WNW
Windy
Humidity
63%
Feels like
12°F
Dew Point
16°F
7 PM
27°F
10%
23mph
WNW
Windy
Humidity
66%
Feels like
12°F
Dew Point
17°F
8 PM
27°F
10%
22mph
WNW
Windy
Humidity
67%
Feels like
13°F
Dew Point
18°F
9 PM
27°F
10%
20mph
WNW
Partly Cloudy
Humidity
68%
Feels like
14°F
Dew Point
18°F
10 PM
27°F
0%
18mph
WNW
Partly Cloudy
Humidity
69%
Feels like
14°F
Dew Point
18°F
11 PM
27°F
0%
16mph
WNW
Partly Cloudy
Humidity
69%
Feels like
14°F
Dew Point
18°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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