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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. 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 75%
Wind Speed N 0 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 20 Mar 05:53 AM PDT
Extended Forecast for

Yreka CA

  • Today

    Today: Mostly sunny, with a high near 80. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 47. North northwest wind around 6 mph becoming calm in the evening.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 68. Light north northwest wind becoming north 6 to 11 mph in the afternoon.

    High: 68 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32. North wind 6 to 11 mph becoming light in the evening.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 68. Light northeast wind.

    High: 68 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 80. Calm wind becoming northwest around 6 mph in the afternoon.
Tonight
Partly cloudy, with a low around 47. North northwest wind around 6 mph becoming calm in the evening.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 68. Light north northwest wind becoming north 6 to 11 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 32. North wind 6 to 11 mph becoming light in the evening.
Sunday
Mostly sunny, with a high near 68. Light northeast wind.
Sunday Night
Partly cloudy, with a low around 39.
Monday
Mostly sunny, with a high near 72.
Monday Night
Mostly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Yreka CA
 41.75°N 122.62°W (Elev. 2726 ft)
Last Update:
4:41 am PDT Mar 20, 2026
Forecast Valid:
6am PDT Mar 20, 2026-6pm PDT Mar 26, 2026
 
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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