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

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

36°F

2°C

Humidity 86%
Wind Speed NE 5 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 18 Mar 05:35 AM PDT
Extended Forecast for

4 Miles NE Montague CA

  • Today

    Today: Sunny, with a high near 82. Calm wind becoming south around 6 mph in the afternoon.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 36. Southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 36 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Light and variable wind.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 39. West wind 5 to 7 mph becoming calm in the evening.

    Low: 39 °F

    Mostly Clear

  • Friday

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

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 82. Calm wind becoming south around 6 mph in the afternoon.
Tonight
Clear, with a low around 36. Southwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 81. Light and variable wind.
Thursday Night
Mostly clear, with a low around 39. West wind 5 to 7 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 80. Calm wind becoming west around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Partly sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 67.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 68.
Monday Night
Mostly cloudy, with a low around 39.
Tuesday
A chance of rain. Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Montague CA
 41.77°N 122.48°W (Elev. 2612 ft)
Last Update:
4:41 am PDT Mar 18, 2026
Forecast Valid:
5am PDT Mar 18, 2026-6pm PDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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Chance of Precipitation