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 >

Current conditions at

Jamestown, Jamestown Municipal Airport (KJMS)

Lat: 46.93° N Lon: 98.68° W Elev: 1499 ft.

Fair

15°F

-9°C

Humidity 77%
Wind Speed NE 12 mph
Barometer 30.17 in (1024.9 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill1°F (-17°C)
Last update 24 Dec 5:56 pm CST
Detailed forecast for

Griggs County

Tonight
Mostly cloudy. Patchy fog after midnight. Lows zero to 5 above. Northeast winds 10 to 20 mph.
Christmas Day
Cloudy. Patchy fog in the morning. A slight chance of sleet in the afternoon. Highs in the mid 20s. Southeast winds 10 to 20 mph with gusts to around 30 mph. Chance of precipitation 20 percent.
Thursday Night
Mostly cloudy. A slight chance of light freezing drizzle in the evening. Lows 15 to 20. Southwest winds around 10 mph shifting to the northwest after midnight.
Friday
Mostly cloudy. Highs 25 to 30.
Friday Night
Mostly cloudy. Lows 20 to 25.
Saturday
Partly sunny. Highs 25 to 30.
Saturday Night
Mostly cloudy. Patchy blowing and drifting snow. A slight chance of light snow. Lows zero to 5 above.
Sunday
Mostly cloudy. Areas of blowing and drifting snow. Highs 5 to 10.
Sunday Night
Partly cloudy. Patchy blowing and drifting snow. Lows 5 to 10 below.
Monday
Mostly sunny. Highs 15 to 20.
Monday Night And Tuesday
Mostly cloudy. A slight chance of light snow. Highs 25 to 30. Lows zero to 5 above.
Tuesday Night
Mostly cloudy. A slight chance of light snow. Lows zero to 5 below.
Wednesday
Mostly cloudy in the morning, then mostly sunny. Highs 5 to 10.



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637 PM CST Wed Dec 24 2025
 
 

Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database