Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

Lat: 41.77375°NLon: 122.46817°WElev: 2644.0ft.

Clear

34°F

1°C

Humidity 93%
Wind Speed N 5 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 09 Dec 10:00 PM PST
Extended Forecast for

16 Miles NNE Weed CA

  • Tonight

    Tonight: Partly cloudy, with a low around 39. West northwest wind around 6 mph becoming calm  after midnight.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 50. West wind 5 to 8 mph.

    High: 50 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 38. West wind around 6 mph.

    Low: 38 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 47. Northwest wind 3 to 6 mph.

    High: 47 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 38. East wind 5 to 8 mph.

    Low: 38 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 39. West northwest wind around 6 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 50. West wind 5 to 8 mph.
Wednesday Night
Mostly clear, with a low around 38. West wind around 6 mph.
Thursday
Sunny, with a high near 47. Northwest wind 3 to 6 mph.
Thursday Night
Mostly clear, with a low around 38. East wind 5 to 8 mph.
Friday
Sunny, with a high near 48.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 43.
Sunday Night
A slight chance of rain and snow. Snow level 6800 feet. Mostly cloudy, with a low around 38.
Monday
A chance of rain and snow. Snow level 6900 feet rising to 7900 feet in the afternoon. Partly sunny, with a high near 41.
Monday Night
A chance of rain and snow. Snow level 7800 feet lowering to 7300 feet after midnight . Mostly cloudy, with a low around 38.
Tuesday
A chance of rain and snow. Snow level 6800 feet. Partly sunny, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NNE Weed CA
 41.63°N 122.23°W (Elev. 6667 ft)
9:41 pm PST Dec 9, 2025
10pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database