National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Rain

48°F

9°C

Humidity 81%
Wind Speed NE 5 MPH
Barometer 30.28 in (1025.4 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 07 Dec 03:00 PM PST
Extended Forecast for

4 Miles N Yreka CA

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 52. Light and variable wind.

    High: 52 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35. Southwest wind around 6 mph.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after 10am. Partly sunny, with a high near 54. Southwest wind around 6 mph.

    High: 54 °F

    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 39. Light southwest wind.

    Low: 39 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain before 10am. Partly sunny, with a high near 57.

    High: 57 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Wednesday Night

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

    Low: 37 °F

    Partly Cloudy

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 57.

    High: 57 °F

    Patchy Fog
    then Sunny

  • Thursday Night

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

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 34. Calm wind.
Monday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 52. Light and variable wind.
Monday Night
Partly cloudy, with a low around 35. Southwest wind around 6 mph.
Tuesday
A 20 percent chance of rain after 10am. Partly sunny, with a high near 54. Southwest wind around 6 mph.
Tuesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 39. Light southwest wind.
Wednesday
A 20 percent chance of rain before 10am. Partly sunny, with a high near 57.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 57.
Thursday Night
Mostly clear, with a low around 34.
Friday
Sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 33.
Saturday
Sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Yreka CA
 41.81°N 122.64°W (Elev. 3379 ft)
Last Update:
2:11 pm PST Dec 7, 2025
Forecast Valid:
3pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation