Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

57°F

14°C

Humidity 54%
Wind Speed N 9 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 05 Jun 10:00 PM PDT
Extended Forecast for

Montague CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. North wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 34 mph.

    Low: 46 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 72. North wind 6 to 14 mph, with gusts as high as 24 mph.

    High: 72 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38. Breezy, with a north wind 18 to 23 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 41 mph.

    Low: 38 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 76. Calm wind.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 48. Northwest wind 3 to 8 mph.

    Low: 48 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of rain after 11am.  Partly sunny, with a high near 71.

    High: 71 °F

    Slight Chance
    Rain

  • Monday Night

    Monday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

  • Tuesday

    Tuesday: A chance of rain, mainly before 11am.  Mostly sunny, with a high near 74.

    High: 74 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 46. North wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 34 mph.
Saturday
Sunny, with a high near 72. North wind 6 to 14 mph, with gusts as high as 24 mph.
Saturday Night
Mostly clear, with a low around 38. Breezy, with a north wind 18 to 23 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 41 mph.
Sunday
Sunny, with a high near 76. Calm wind.
Sunday Night
Mostly cloudy, with a low around 48. Northwest wind 3 to 8 mph.
Monday
A 20 percent chance of rain after 11am. Partly sunny, with a high near 71.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 46.
Tuesday
A chance of rain, mainly before 11am. Mostly sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Clear, with a low around 42.
Thursday
Sunny, with a high near 80.
Thursday Night
Clear, with a low around 45.
Friday
Sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.74°N 122.53°W (Elev. 2589 ft)
9:31 pm PDT Jun 5, 2026
10pm PDT Jun 5, 2026-6pm PDT Jun 12, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database