Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

87°F

31°C

Humidity 19%
Wind Speed SW 10 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 11 Jul 01:53 PM PDT
Extended Forecast for

Montague CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 93. Light northwest wind.

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: Areas of smoke after 9pm. Mostly cloudy, with a low around 56. Northwest wind 12 to 17 mph becoming light west  after midnight. Winds could gust as high as 26 mph.

    Low: 56 °F

    Areas Smoke

  • Sunday

    Sunday: Patchy smoke before 1pm. Mostly sunny, with a high near 95. Light and variable wind.

    High: 95 °F

    Patchy Smoke

  • Sunday Night

    Sunday Night: Areas of smoke between 9pm and midnight. Partly cloudy, with a low around 58. Northwest wind 10 to 15 mph becoming light north northwest  after midnight. Winds could gust as high as 22 mph.

    Low: 58 °F

    Areas Smoke
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 94 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 11am.  Sunny, with a high near 94.

    High: 94 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 11pm.  Mostly clear, with a low around 57.

    Low: 57 °F

    Slight Chance
    T-storms then
    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 93. Light northwest wind.
Tonight
Areas of smoke after 9pm. Mostly cloudy, with a low around 56. Northwest wind 12 to 17 mph becoming light west after midnight. Winds could gust as high as 26 mph.
Sunday
Patchy smoke before 1pm. Mostly sunny, with a high near 95. Light and variable wind.
Sunday Night
Areas of smoke between 9pm and midnight. Partly cloudy, with a low around 58. Northwest wind 10 to 15 mph becoming light north northwest after midnight. Winds could gust as high as 22 mph.
Monday
Partly sunny, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
A 20 percent chance of showers and thunderstorms after 11am. Sunny, with a high near 94.
Tuesday Night
A slight chance of showers and thunderstorms before 11pm. Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Clear, with a low around 54.
Thursday
Sunny, with a high near 94.
Thursday Night
Clear, with a low around 56.
Friday
Sunny and hot, with a high near 98.
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ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.74°N 122.53°W (Elev. 2589 ft)
12:56 pm PDT Jul 11, 2026
2pm PDT Jul 11, 2026-6pm PDT Jul 17, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database