Isolated Severe Thunderstorms and Critical Fire Weather Tuesday

Isolated severe thunderstorms with strong wind gusts and hail will be possible Tuesday from parts of central Plains northeastward into the Midwest. Additional storms capable of damaging winds will be possible across the eastern Florida peninsula. Elevated to critical fire weather including gusty winds and low relative humidity is forecast again Tuesday over much of the northern Great Plains. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

58°F

14°C

Humidity 59%
Wind Speed N 0 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 12 May 12:53 AM PDT
Extended Forecast for

Montague CA

  • Overnight

    Overnight: Partly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89. Breezy, with a light and variable wind becoming south 19 to 24 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 89 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 11pm.  Mostly cloudy, with a low around 46. West southwest wind 7 to 15 mph becoming north northwest in the evening. Winds could gust as high as 29 mph.

    Low: 46 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers before 10am.  Mostly sunny, with a high near 72. Northwest wind 7 to 9 mph.

    High: 72 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39. North wind 8 to 13 mph becoming light north northeast  after midnight. Winds could gust as high as 25 mph.

    Low: 39 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 43.

    Low: 43 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 38. Breezy.

    Low: 38 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 54. Calm wind.
Tuesday
Mostly sunny, with a high near 89. Breezy, with a light and variable wind becoming south 19 to 24 mph in the afternoon. Winds could gust as high as 39 mph.
Tuesday Night
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 46. West southwest wind 7 to 15 mph becoming north northwest in the evening. Winds could gust as high as 29 mph.
Wednesday
A 20 percent chance of showers before 10am. Mostly sunny, with a high near 72. Northwest wind 7 to 9 mph.
Wednesday Night
Mostly clear, with a low around 39. North wind 8 to 13 mph becoming light north northeast after midnight. Winds could gust as high as 25 mph.
Thursday
Sunny, with a high near 80.
Thursday Night
Clear, with a low around 43.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 38. Breezy.
Saturday
Mostly sunny, with a high near 67. Breezy.
Saturday Night
Mostly clear, with a low around 34. Breezy.
Sunday
Sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 38.
Monday
Sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.72°N 122.53°W (Elev. 2598 ft)
11:26 pm PDT May 11, 2026
1am PDT May 12, 2026-6pm PDT May 18, 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