Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

88°F

31°C

Humidity 14%
Wind Speed WNW 3 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 26 Aug 05:35 PM PDT
Extended Forecast for

Yreka CA

  • Tonight

    Tonight: Partly cloudy, with a low around 56. West northwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 90. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 90 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. West northwest wind 5 to 9 mph becoming calm  in the evening.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 54. West northwest wind 6 to 11 mph becoming light northwest  after midnight.

    Low: 54 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 50.

    Low: 50 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 54.

    Low: 54 °F

    Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 56. West northwest wind 5 to 8 mph becoming calm in the evening.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 90. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 56. West northwest wind 5 to 9 mph becoming calm in the evening.
Friday
Sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Clear, with a low around 54. West northwest wind 6 to 11 mph becoming light northwest after midnight.
Saturday
Sunny, with a high near 84.
Saturday Night
Clear, with a low around 50.
Sunday
Sunny, with a high near 87.
Sunday Night
Clear, with a low around 54.
Monday
Sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Yreka CA
 41.72°N 122.62°W (Elev. 2959 ft)
4:40 pm PDT Aug 26, 2026
5pm PDT Aug 26, 2026-6pm PDT Sep 2, 2026
 
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