Hourly Weather Forecast - Sweet Grass, MT

12 AM
26°F
20%
9mph
SSW
Mostly Cloudy
Humidity
68%
Feels like
17°F
Dew Point
17°F
1 AM
24°F
20%
9mph
SW
Mostly Cloudy
Humidity
74%
Feels like
15°F
Dew Point
17°F
2 AM
23°F
20%
10mph
SW
Cloudy
Humidity
75%
Feels like
13°F
Dew Point
17°F
3 AM
22°F
10%
10mph
WSW
Cloudy
Humidity
72%
Feels like
12°F
Dew Point
15°F
4 AM
22°F
10%
10mph
WSW
Mostly Cloudy
Humidity
67%
Feels like
12°F
Dew Point
13°F
5 AM
22°F
10%
11mph
W
Partly Cloudy
Humidity
62%
Feels like
11°F
Dew Point
11°F
6 AM
22°F
10%
11mph
W
Partly Cloudy
Humidity
62%
Feels like
11°F
Dew Point
11°F
7 AM
23°F
20%
12mph
W
Mostly Clear
Humidity
62%
Feels like
11°F
Dew Point
11°F
8 AM
23°F
20%
12mph
WSW
Mostly Clear
Humidity
61%
Feels like
12°F
Dew Point
12°F
8:19 AM
9 AM
24°F
20%
12mph
WSW
Mostly Sunny
Humidity
58%
Feels like
13°F
Dew Point
11°F
10 AM
26°F
20%
11mph
W
Mostly Sunny
Humidity
55%
Feels like
15°F
Dew Point
12°F
11 AM
27°F
20%
11mph
W
Mostly Sunny
Humidity
51%
Feels like
17°F
Dew Point
11°F
12 PM
26°F
10%
11mph
W
Mostly Sunny
Humidity
49%
Feels like
16°F
Dew Point
10°F
1 PM
24°F
10%
10mph
W
Mostly Sunny
Humidity
47%
Feels like
14°F
Dew Point
7°F
2 PM
22°F
10%
10mph
W
Mostly Sunny
Humidity
50%
Feels like
11°F
Dew Point
6°F
3 PM
18°F
10%
9mph
W
Mostly Sunny
Humidity
58%
Feels like
7°F
Dew Point
6°F
4 PM
15°F
10%
9mph
WSW
Mostly Sunny
Humidity
68%
Feels like
3°F
Dew Point
6°F
4:33 PM
5 PM
12°F
10%
9mph
WSW
Partly Cloudy
Humidity
76%
Feels like
0°F
Dew Point
6°F
6 PM
11°F
10%
9mph
WSW
Partly Cloudy
Humidity
67%
Feels like
-1°F
Dew Point
2°F
7 PM
11°F
10%
9mph
WSW
Partly Cloudy
Humidity
70%
Feels like
-1°F
Dew Point
4°F
8 PM
13°F
10%
9mph
SW
Partly Cloudy
Humidity
69%
Feels like
1°F
Dew Point
5°F
9 PM
15°F
10%
10mph
SW
Partly Cloudy
Humidity
68%
Feels like
3°F
Dew Point
6°F
10 PM
16°F
10%
10mph
SW
Partly Cloudy
Humidity
68%
Feels like
4°F
Dew Point
8°F
11 PM
17°F
10%
10mph
SW
Partly Cloudy
Humidity
70%
Feels like
5°F
Dew Point
9°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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