Hourly Weather Forecast - Big Arm, MT

12 AM
34°F
10%
11mph
SW
Mostly Cloudy
Humidity
57%
Feels like
26°F
Dew Point
20°F
1 AM
34°F
30%
11mph
SW
30% Chance of Snow
Humidity
57%
Feels like
26°F
Dew Point
21°F
2 AM
34°F
10%
11mph
SW
Mostly Cloudy
Humidity
57%
Feels like
26°F
Dew Point
20°F
3 AM
34°F
10%
11mph
SW
Mostly Cloudy
Humidity
57%
Feels like
26°F
Dew Point
20°F
4 AM
34°F
10%
11mph
SW
Mostly Cloudy
Humidity
56%
Feels like
26°F
Dew Point
20°F
5 AM
34°F
10%
11mph
SW
Cloudy
Humidity
57%
Feels like
26°F
Dew Point
21°F
6 AM
34°F
10%
10mph
SW
Cloudy
Humidity
56%
Feels like
26°F
Dew Point
20°F
7 AM
35°F
10%
10mph
SSW
Cloudy
Humidity
56%
Feels like
27°F
Dew Point
21°F
8 AM
35°F
10%
10mph
SSW
Cloudy
Humidity
56%
Feels like
28°F
Dew Point
21°F
8:22 AM
9 AM
36°F
10%
10mph
SSW
Mostly Cloudy
Humidity
56%
Feels like
28°F
Dew Point
22°F
10 AM
36°F
30%
11mph
SSW
30% Chance of Snow
Humidity
56%
Feels like
29°F
Dew Point
22°F
11 AM
37°F
30%
11mph
SSW
30% Chance of Snow
Humidity
56%
Feels like
30°F
Dew Point
23°F
12 PM
37°F
10%
11mph
SSW
Partly Cloudy
Humidity
56%
Feels like
30°F
Dew Point
23°F
1 PM
38°F
10%
12mph
SW
Partly Cloudy
Humidity
57%
Feels like
30°F
Dew Point
24°F
2 PM
37°F
10%
13mph
SW
Partly Cloudy
Humidity
58%
Feels like
29°F
Dew Point
24°F
3 PM
37°F
30%
12mph
SW
30% Chance of Snow
Humidity
58%
Feels like
29°F
Dew Point
24°F
4 PM
37°F
0%
10mph
SW
Partly Cloudy
Humidity
59%
Feels like
29°F
Dew Point
24°F
4:46 PM
5 PM
36°F
30%
9mph
SSW
30% Chance of Snow
Humidity
60%
Feels like
29°F
Dew Point
24°F
6 PM
36°F
0%
9mph
SSW
Partly Cloudy
Humidity
61%
Feels like
29°F
Dew Point
24°F
7 PM
35°F
0%
9mph
SSW
Partly Cloudy
Humidity
61%
Feels like
28°F
Dew Point
23°F
8 PM
35°F
0%
9mph
SSW
Partly Cloudy
Humidity
61%
Feels like
28°F
Dew Point
23°F
9 PM
35°F
10%
8mph
SSW
Partly Cloudy
Humidity
61%
Feels like
28°F
Dew Point
23°F
10 PM
34°F
10%
8mph
S
Partly Cloudy
Humidity
61%
Feels like
28°F
Dew Point
22°F
11 PM
34°F
10%
8mph
S
Partly Cloudy
Humidity
60%
Feels like
27°F
Dew Point
22°F

Forecast Wind Gusts For Today

Storm Pummels Eastern U.S.

A strong disturbance will sweep across the eastern U.S. today bringing various impacts including rain and thunderstorms, snow and even strong wind gusts.

Rain And Snow Totals Through Tonight

Atmospheric River Impacts Northwest into Northern California

NOAA, NCDC

White Christmas? What Are The Odds

Today's Weather Outlook

Today's Weather Outlook

Friday's Weather Outlook

Weekend Weather Preview

Flu Update Valid For Week Ending December 6, 2025

Weekly Flu Update: Flu Exceeds Annual Baseline

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide