Hourly Weather Forecast - Plains, MT

12 AM
34°F
30%
6mph
WSW
30% Chance Frozen Mix
Humidity
87%
Feels like
28°F
Dew Point
30°F
1 AM
33°F
30%
6mph
WSW
30% Chance Snow Showers
Humidity
86%
Feels like
28°F
Dew Point
29°F
2 AM
33°F
30%
6mph
WSW
30% Chance Frozen Mix
Humidity
84%
Feels like
27°F
Dew Point
28°F
3 AM
32°F
30%
5mph
WSW
30% Chance Frozen Mix
Humidity
82%
Feels like
27°F
Dew Point
27°F

Rain And Snow Totals Through Monday

Atmospheric River Impacts Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California through Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

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Today's Weather Outlook

Today's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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