Hourly Weather Forecast - Big Arm, MT

12 AM
36°F
10%
4mph
SSW
Partly Cloudy
Humidity
73%
Feels like
32°F
Dew Point
28°F
1 AM
35°F
10%
4mph
SSW
Partly Cloudy
Humidity
75%
Feels like
32°F
Dew Point
28°F
2 AM
35°F
10%
4mph
SSW
Partly Cloudy
Humidity
78%
Feels like
31°F
Dew Point
29°F
3 AM
35°F
10%
4mph
SSW
Partly Cloudy
Humidity
79%
Feels like
31°F
Dew Point
29°F
4 AM
34°F
10%
4mph
SSW
Mostly Cloudy
Humidity
81%
Feels like
31°F
Dew Point
29°F
5 AM
34°F
20%
4mph
SSW
Mostly Cloudy
Humidity
81%
Feels like
30°F
Dew Point
29°F
6 AM
34°F
20%
4mph
SSW
Mostly Cloudy
Humidity
82%
Feels like
30°F
Dew Point
29°F
7 AM
35°F
20%
5mph
SSW
Mostly Cloudy
Humidity
80%
Feels like
30°F
Dew Point
29°F
7:08 AM
8 AM
36°F
20%
6mph
SSW
Mostly Cloudy
Humidity
74%
Feels like
32°F
Dew Point
29°F
9 AM
39°F
20%
7mph
SSW
Mostly Cloudy
Humidity
66%
Feels like
34°F
Dew Point
29°F
10 AM
41°F
20%
8mph
SW
Cloudy
Humidity
60%
Feels like
36°F
Dew Point
28°F
11 AM
43°F
20%
9mph
SW
Cloudy
Humidity
56%
Feels like
37°F
Dew Point
28°F
12 PM
44°F
20%
9mph
SW
Mostly Cloudy
Humidity
52%
Feels like
39°F
Dew Point
27°F
1 PM
45°F
20%
10mph
WSW
Partly Cloudy
Humidity
49%
Feels like
40°F
Dew Point
27°F
2 PM
46°F
20%
11mph
WSW
Partly Cloudy
Humidity
46%
Feels like
40°F
Dew Point
26°F
3 PM
46°F
30%
11mph
WSW
30% Chance Rain Showers
Humidity
45%
Feels like
41°F
Dew Point
26°F
4 PM
46°F
30%
11mph
WSW
30% Chance Rain Showers
Humidity
46%
Feels like
40°F
Dew Point
26°F
5 PM
44°F
30%
10mph
WSW
30% Chance Rain Showers
Humidity
49%
Feels like
39°F
Dew Point
26°F
6 PM
42°F
20%
9mph
WSW
Partly Cloudy
Humidity
54%
Feels like
37°F
Dew Point
27°F
6:29 PM
7 PM
41°F
20%
8mph
WSW
Partly Cloudy
Humidity
58%
Feels like
36°F
Dew Point
27°F
8 PM
40°F
30%
7mph
SW
30% Chance Rain Showers
Humidity
60%
Feels like
36°F
Dew Point
28°F
9 PM
40°F
30%
6mph
SW
30% Chance Rain Showers
Humidity
62%
Feels like
36°F
Dew Point
28°F
10 PM
40°F
30%
6mph
SSW
30% Chance of Light Rain
Humidity
64%
Feels like
35°F
Dew Point
28°F
11 PM
40°F
30%
6mph
SSW
30% Chance of Light Rain
Humidity
65%
Feels like
35°F
Dew Point
29°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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide