Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Grant Municipal Airport (KGGF)

Lat: 40.87° N Lon: 101.73° W Elev: 3425 ft.

Fair

36°F

2°C

Humidity 65%
Wind Speed SW 10 mph
Barometer 30.01 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 24 Dec 11:15 pm MST
Detailed forecast for

Perkins County

Tonight
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 30s. Light and variable winds.
Christmas Day
Partly sunny. Highs in the mid 60s. Light and variable winds.
Thursday Night
Mostly clear. Lows in the lower 30s. West winds around 10 mph.
Friday
Mostly sunny. Highs in the mid 60s. Southwest winds around 10 mph.
Friday Night
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 30s. South winds around 10 mph, becoming west after midnight.
Saturday
Mostly sunny. Highs in the upper 50s.
Saturday Night
Mostly cloudy. A slight chance of snow after midnight. Lows around 16. Chance of precipitation 20 percent.
Sunday
Sunny. Highs in the mid 30s.
Sunday Night
Mostly clear in the evening, then becoming mostly cloudy. Lows around 14.
Monday
Sunny. Highs in the lower 40s.
Monday Night
Mostly clear. Lows in the lower 20s. Temperature rising into the in the mid 20s after midnight.
Tuesday
Sunny. Highs in the lower 50s.
Tuesday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 20s.
Wednesday
Mostly sunny. Highs in the lower 50s.



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1234 PM MST Wed Dec 24 2025
 
 

Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database