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

52°F

11°C

Humidity 66%
Wind Speed N 0 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 09 Dec 04:30 PM PST
Extended Forecast for

3 Miles W Yreka CA

  • Tonight

    Tonight: Partly cloudy, with a low around 39. Calm wind becoming northwest around 5 mph.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Patchy dense fog between 9am and 11am.  Otherwise, sunny, with a high near 56. Calm wind.

    High: 56 °F

    Patchy Dense
    Fog then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 55. Calm wind.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Friday Night

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

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 39. Calm wind becoming northwest around 5 mph.
Wednesday
Patchy dense fog between 9am and 11am. Otherwise, sunny, with a high near 56. Calm wind.
Wednesday Night
Mostly clear, with a low around 37. Calm wind.
Thursday
Sunny, with a high near 55. Calm wind.
Thursday Night
Mostly clear, with a low around 36. Calm wind.
Friday
Sunny, with a high near 54.
Friday Night
Partly cloudy, with a low around 36.
Saturday
Sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 39.
Monday
A chance of rain. Mostly cloudy, with a high near 51.
Monday Night
A chance of rain. Mostly cloudy, with a low around 41.
Tuesday
A chance of rain. Partly sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Yreka CA
 41.72°N 122.68°W (Elev. 3199 ft)
3:41 pm PST Dec 9, 2025
4pm 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