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

EUREKA (EURM8)

Lat: 48.89781°NLon: 115.05836°WElev: 2632.0ft.

NA

40°F

4°C

Humidity 89%
Wind Speed SE 4 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Wind Chill37°F (3°C)
Last update 26 Dec 01:15 AM MST
Extended Forecast for

15 Miles WSW Fortine MT

Winter Weather Advisory December 26, 12:00pm until December 27, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: A 20 percent chance of snow before 4am. Mostly cloudy, with a low around 25. South southwest wind 14 to 17 mph, with gusts as high as 22 mph.

    Low: 25 °F

    Slight Chance
    Snow

  • Friday

    Friday: Snow, mainly before 3pm. The snow could be heavy at times. Widespread blowing snow, mainly between 9am and 3pm. High near 26. Breezy, with a south southwest wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

    High: 26 °F

    Heavy Snow
    and Blowing
    Snow

  • Friday Night

    Friday Night: Snow, mainly before midnight. The snow could be heavy at times. Widespread blowing snow, mainly after 4am. Low around 10. Wind chill values as low as -5. Windy, with a southwest wind 28 to 36 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 10 °F

    Heavy Snow
    and Blowing
    Snow

  • Saturday

    Saturday: Snow likely, mainly before 11am. Areas of blowing snow before 11am. Mostly cloudy, with a high near 16. Wind chill values as low as -9. Breezy, with a southwest wind 21 to 26 mph becoming north northwest 10 to 15 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 16 °F

    Snow Likely
    and Areas
    Blowing Snow
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 3. North northwest wind 6 to 9 mph.

    Low: 3 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 12.

    High: 12 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 8.

    Low: 8 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 16.

    High: 16 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 13.

    Low: 13 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of snow before 4am. Mostly cloudy, with a low around 25. South southwest wind 14 to 17 mph, with gusts as high as 22 mph.
Friday
Snow, mainly before 3pm. The snow could be heavy at times. Widespread blowing snow, mainly between 9am and 3pm. High near 26. Breezy, with a south southwest wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
Friday Night
Snow, mainly before midnight. The snow could be heavy at times. Widespread blowing snow, mainly after 4am. Low around 10. Wind chill values as low as -5. Windy, with a southwest wind 28 to 36 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Saturday
Snow likely, mainly before 11am. Areas of blowing snow before 11am. Mostly cloudy, with a high near 16. Wind chill values as low as -9. Breezy, with a southwest wind 21 to 26 mph becoming north northwest 10 to 15 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Mostly cloudy, with a low around 3. North northwest wind 6 to 9 mph.
Sunday
Partly sunny, with a high near 12.
Sunday Night
Mostly cloudy, with a low around 8.
Monday
Mostly cloudy, with a high near 16.
Monday Night
Mostly cloudy, with a low around 13.
Tuesday
Mostly cloudy, with a high near 20.
Tuesday Night
Mostly cloudy, with a low around 17.
Wednesday
A slight chance of snow. Mostly cloudy, with a high near 23.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 20.
New Year's Day
A chance of snow. Mostly cloudy, with a high near 24.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles WSW Fortine MT
 48.68°N 115.2°W (Elev. 5883 ft)
Last Update:
1:03 am MST Dec 26, 2025
Forecast Valid:
2am MST Dec 26, 2025-6pm MST Jan 1, 2026
 
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Additional Resources

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Chance of Precipitation