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

39°F

4°C

Humidity 86%
Wind Speed SE 4 MPH
Barometer 30.3 in (1026.08 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 09 Dec 09:00 PM PST
Extended Forecast for

4 Miles N Yreka CA

  • Tonight

    Tonight: Patchy fog after 10pm.  Otherwise, partly cloudy, with a low around 35. Calm wind becoming north northwest around 5 mph after midnight.

    Low: 35 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy dense fog before 11am.  Otherwise, sunny, with a high near 58. Southeast wind around 5 mph becoming calm  in the morning.

    High: 58 °F

    Patchy Dense
    Fog then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Clear

  • Thursday

    Thursday: Patchy fog before 9am.  Otherwise, sunny, with a high near 56. Light east wind.

    High: 56 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32. Calm wind.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Saturday Night

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

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 35. Calm wind becoming north northwest around 5 mph after midnight.
Wednesday
Patchy dense fog before 11am. Otherwise, sunny, with a high near 58. Southeast wind around 5 mph becoming calm in the morning.
Wednesday Night
Mostly clear, with a low around 33. Calm wind.
Thursday
Patchy fog before 9am. Otherwise, sunny, with a high near 56. Light east wind.
Thursday Night
Mostly clear, with a low around 32. Calm wind.
Friday
Sunny, with a high near 55.
Friday Night
Mostly clear, with a low around 31.
Saturday
Sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 36.
Monday
A chance of rain. Mostly cloudy, with a high near 53.
Monday Night
A chance of rain. Mostly cloudy, with a low around 38.
Tuesday
A chance of rain. Partly sunny, with a high near 54.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Yreka CA
 41.81°N 122.64°W (Elev. 3379 ft)
3:41 pm PST Dec 9, 2025
9pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database