National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

Dunn County Airport - Weydahl Field (K9Y1)

Lat: 47.39°NLon: 102.77°WElev: 2249ft.

Freezing Fog

25°F

-4°C

Humidity 100%
Wind Speed SE 2 mph
Barometer 29.65 in
Dewpoint 25°F (-4°C)
Visibility 0.25 mi
Last update 25 Dec 11:35 am MST
Extended Forecast for

Grassy Butte ND

  • Christmas Day

    Christmas Day: A slight chance of freezing rain before 3pm, then a slight chance of snow between 3pm and 4pm. Widespread fog, mainly before 1pm. Otherwise, mostly cloudy, with a high near 37. Southwest wind 6 to 11 mph becoming northwest. Winds could gust as high as 18 mph. Chance of precipitation is 20%.

    High: 37 °F

    Slight Chance
    Wintry Mix
    and Fog

  • Tonight

    Tonight: Areas of fog. Otherwise, cloudy, with a low around 22. Northwest wind 6 to 8 mph becoming south after midnight.

    Low: 22 °F

    Areas Fog

  • Friday

    Friday: Areas of fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 42. South wind around 9 mph.

    High: 42 °F

    Areas Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 22. South wind 8 to 10 mph becoming west after midnight.

    Low: 22 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after noon. Partly sunny, with a high near 30. West wind 8 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph.

    High: 30 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around -5. Blustery, with a northwest wind 18 to 22 mph, with gusts as high as 31 mph.

    Low: -5 °F

    Blustery.
    Slight Chance
    Snow then
    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny and cold, with a high near 2. Blustery, with a northwest wind 14 to 21 mph, with gusts as high as 31 mph.

    High: 2 °F

    Partly Sunny
    and Blustery
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -5. Northwest wind 7 to 13 mph becoming southwest after midnight. Winds could gust as high as 21 mph.

    Low: -5 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 24. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 24 °F

    Partly Sunny

Detailed Forecast

Christmas Day
A slight chance of freezing rain before 3pm, then a slight chance of snow between 3pm and 4pm. Widespread fog, mainly before 1pm. Otherwise, mostly cloudy, with a high near 37. Southwest wind 6 to 11 mph becoming northwest. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Tonight
Areas of fog. Otherwise, cloudy, with a low around 22. Northwest wind 6 to 8 mph becoming south after midnight.
Friday
Areas of fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 42. South wind around 9 mph.
Friday Night
Mostly cloudy, with a low around 22. South wind 8 to 10 mph becoming west after midnight.
Saturday
A 20 percent chance of snow after noon. Partly sunny, with a high near 30. West wind 8 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph.
Saturday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around -5. Blustery, with a northwest wind 18 to 22 mph, with gusts as high as 31 mph.
Sunday
Partly sunny and cold, with a high near 2. Blustery, with a northwest wind 14 to 21 mph, with gusts as high as 31 mph.
Sunday Night
Mostly clear, with a low around -5. Northwest wind 7 to 13 mph becoming southwest after midnight. Winds could gust as high as 21 mph.
Monday
Partly sunny, with a high near 24. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 18. West wind 10 to 14 mph, with gusts as high as 21 mph.
Tuesday
Partly sunny, with a high near 33. West wind 11 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly cloudy, with a low around 12. West wind around 10 mph.
Wednesday
Mostly cloudy, with a high near 20. West wind around 10 mph becoming north in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grassy Butte ND
 47.4°N 103.25°W
Last Update:
12:36 pm CST Dec 25, 2025
Forecast Valid:
12pm CST Dec 25, 2025-6pm CST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation