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

59°F

15°C

Humidity 54%
Wind Speed NNE 10 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 20 Mar 08:20 PM PDT
Extended Forecast for

7 Miles NNE Yreka CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. Light and variable wind.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 70. Light north wind increasing to 6 to 11 mph in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 26. North wind 5 to 13 mph, with gusts as high as 20 mph.

    Low: 26 °F

    Frost

  • Sunday

    Sunday: Widespread frost before 11am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming north around 5 mph.

    High: 74 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Widespread frost after 5am. Otherwise, partly cloudy, with a low around 33. Light north northwest wind.

    Low: 33 °F

    Partly Cloudy
    then Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, mostly sunny, with a high near 77.

    High: 77 °F

    Frost then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 39. Light and variable wind.
Saturday
Mostly sunny, with a high near 70. Light north wind increasing to 6 to 11 mph in the afternoon.
Saturday Night
Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 26. North wind 5 to 13 mph, with gusts as high as 20 mph.
Sunday
Widespread frost before 11am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming north around 5 mph.
Sunday Night
Widespread frost after 5am. Otherwise, partly cloudy, with a low around 33. Light north northwest wind.
Monday
Widespread frost before 8am. Otherwise, mostly sunny, with a high near 77.
Monday Night
Mostly cloudy, with a low around 39.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 34.
Friday
Sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NNE Yreka CA
 41.84°N 122.59°W (Elev. 2697 ft)
Last Update:
8:31 pm PDT Mar 20, 2026
Forecast Valid:
8pm PDT Mar 20, 2026-6pm PDT Mar 27, 2026
 
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Additional Resources

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Chance of Precipitation