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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

45°F

7°C

Humidity 60%
Wind Speed N 0 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 04 Oct 07:53 AM PDT
Extended Forecast for

Yreka CA

  • Today

    Today: Mostly sunny, with a high near 88. Light and variable wind.

    High: 88 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 55. North northwest wind around 6 mph becoming calm after midnight.

    Low: 55 °F

    Gradual
    Clearing

  • Monday

    Monday: Sunny, with a high near 90. Calm wind.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 54. Light and variable wind.

    Low: 54 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. Calm wind.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 55.

    Low: 55 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 54.

    Low: 54 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 88. Light and variable wind.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 55. North northwest wind around 6 mph becoming calm after midnight.
Monday
Sunny, with a high near 90. Calm wind.
Monday Night
Clear, with a low around 54. Light and variable wind.
Tuesday
Sunny, with a high near 90. Calm wind.
Tuesday Night
Clear, with a low around 55.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Clear, with a low around 54.
Thursday
Sunny, with a high near 90.
Thursday Night
Clear, with a low around 54.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Yreka CA
 41.72°N 122.62°W (Elev. 2959 ft)
Last Update:
4:40 am PDT Oct 4, 2026
Forecast Valid:
8am PDT Oct 4, 2026-6pm PDT Oct 10, 2026
 
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