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

Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Many locations are likely to set records for the highest-ever March temperature. Periods of critical fire weather will persist from the central Rockies to the central Plains through Saturday as gusty winds and low relative humidity continue. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

73°F

23°C

Humidity 27%
Wind Speed NE 3 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 19 Mar 02:00 PM PDT
Extended Forecast for

Yreka CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 80. Light east southeast wind.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 42. West northwest wind around 5 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny during the morning, then sunny during the afternoon, with a high near 80. Calm wind becoming east around 5 mph in the afternoon.

    High: 80 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 48. Northwest wind 3 to 8 mph.

    Low: 48 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 68. Light north northeast wind becoming north 6 to 11 mph in the afternoon.

    High: 68 °F

    Partly Sunny

  • Saturday Night

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

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 70.

    High: 70 °F

    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

Detailed Forecast

This Afternoon
Sunny, with a high near 80. Light east southeast wind.
Tonight
Mostly clear, with a low around 42. West northwest wind around 5 mph becoming calm in the evening.
Friday
Partly sunny during the morning, then sunny during the afternoon, with a high near 80. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Increasing clouds, with a low around 48. Northwest wind 3 to 8 mph.
Saturday
Partly sunny, with a high near 68. Light north northeast wind becoming north 6 to 11 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 39.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 41.
Wednesday
Mostly sunny, with a high near 61.
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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:
2:06 pm PDT Mar 19, 2026
Forecast Valid:
2pm PDT Mar 19, 2026-6pm PDT Mar 25, 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