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

54°F

12°C

Humidity 43%
Wind Speed S 3 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 22 Mar 12:00 PM PDT
Extended Forecast for

4 Miles NE Montague CA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 69. Southeast wind around 6 mph becoming northwest.

    High: 69 °F

    Partly Sunny

  • Tonight

    Tonight: Areas of frost after 5am.  Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 36. North northwest wind around 6 mph becoming calm  after midnight.

    Low: 36 °F

    Mostly Cloudy
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 8am.  Otherwise, mostly sunny, with a high near 72. Calm wind.

    High: 72 °F

    Areas Frost
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 43. West wind 5 to 9 mph becoming calm  in the evening.

    Low: 43 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. Light south wind becoming southwest 13 to 18 mph in the morning. Winds could gust as high as 28 mph.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 69. Southeast wind around 6 mph becoming northwest.
Tonight
Areas of frost after 5am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 36. North northwest wind around 6 mph becoming calm after midnight.
Monday
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 72. Calm wind.
Monday Night
Partly cloudy, with a low around 43. West wind 5 to 9 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 72. Light south wind becoming southwest 13 to 18 mph in the morning. Winds could gust as high as 28 mph.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Partly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
Sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 30.
Friday
Mostly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 34.
Saturday
Mostly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Montague CA
 41.77°N 122.48°W (Elev. 2612 ft)
10:41 am PDT Mar 22, 2026
12pm PDT Mar 22, 2026-6pm PDT Mar 28, 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