Hourly Weather Forecast - Big Arm, MT

12 AM
39°F
30%
6mph
SSW
30% Chance of Light Rain
Humidity
67%
Feels like
35°F
Dew Point
29°F
1 AM
40°F
30%
6mph
SSW
30% Chance of Light Rain
Humidity
69%
Feels like
35°F
Dew Point
30°F
2 AM
39°F
20%
7mph
SSW
Cloudy
Humidity
71%
Feels like
35°F
Dew Point
31°F
3 AM
40°F
20%
7mph
SSW
Cloudy
Humidity
72%
Feels like
35°F
Dew Point
31°F
4 AM
40°F
20%
6mph
SSW
Cloudy
Humidity
73%
Feels like
35°F
Dew Point
32°F
5 AM
40°F
20%
6mph
SSW
Cloudy
Humidity
74%
Feels like
35°F
Dew Point
32°F
6 AM
40°F
20%
6mph
SSW
Cloudy
Humidity
75%
Feels like
35°F
Dew Point
32°F
7 AM
40°F
30%
6mph
SSW
30% Chance of Light Rain
Humidity
75%
Feels like
36°F
Dew Point
33°F
7:06 AM
8 AM
42°F
30%
6mph
SSW
30% Chance of Light Rain
Humidity
71%
Feels like
38°F
Dew Point
33°F
9 AM
43°F
30%
7mph
SSW
30% Chance of Light Rain
Humidity
67%
Feels like
39°F
Dew Point
33°F

Snow and Ice Accumulations through Tuesday AM

Wintry Disturbance Bisects U.S. Mid-Latitudes

A wintry disturbance will bring icing and light snow from the central Plains today through the Northeast on Tuesday.

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for February 26, 2026

Widespread Drought Degradation For South, Southeast; Mixed Results Elsewhere

Debris flies through the air as howling winds accompanied by a line of storms approach the old Tarrant County Courthouse in downtown Fort Worth, Texas, on March 2, 2023. (Tom Fox/The Dallas Morning News via AP)

Lightning Season Rapidly Approaching: Best Safety Practices

Rocky Mountain National Park at day in December. (NPS Natural Resources/Wikimedia Commons)

Snowmelt and Flooding

U.S. Route 52 near St. Donatus between Bellevue and Dubuque, Iowa. (Tony Webster from Portland, Oregon)

Winter Weather Driving Safety Tips

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