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

36°F

2°C

Humidity 100%
Wind Speed N 4 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 09 Dec 11:00 PM PST
Extended Forecast for

6 Miles WSW Fort Jones CA

  • Tonight

    Tonight: Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy dense fog before 11am.  Otherwise, sunny, with a high near 61. Calm wind.

    High: 61 °F

    Patchy Dense
    Fog then
    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 34. Light west southwest wind.

    Low: 34 °F

    Clear

  • Thursday

    Thursday: Patchy fog before 9am.  Otherwise, sunny, with a high near 59. Calm wind.

    High: 59 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 36. Calm wind.
Wednesday
Patchy dense fog before 11am. Otherwise, sunny, with a high near 61. Calm wind.
Wednesday Night
Clear, with a low around 34. Light west southwest wind.
Thursday
Patchy fog before 9am. Otherwise, sunny, with a high near 59. Calm wind.
Thursday Night
Mostly clear, with a low around 34. Calm wind.
Friday
Sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 33.
Saturday
Sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Patchy fog between 10am and 11am. Otherwise, mostly sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 35.
Monday
Rain likely. Partly sunny, with a high near 54.
Monday Night
Rain likely. Mostly cloudy, with a low around 38.
Tuesday
A chance of rain. Partly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Fort Jones CA
 41.58°N 122.97°W (Elev. 2946 ft)
10:36 pm PST Dec 9, 2025
11pm 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