October Heat Wave in California; Tropical Cyclone Possible in the Gulf

Much higher than typical October temperatures will continue across coastal southern California up through the Bay Area and Central Valley through midweek resulting in result in Major to Extreme HeatRisk. A tropical depression is likely to form over the Gulf of America during the middle part of this week with further strengthening possible as it moves northeastward later this week. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

79°F

26°C

Humidity 24%
Wind Speed W 3 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 06 Oct 12:30 PM PDT
Extended Forecast for

10 Miles NNE Montague CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 91. Light and variable wind.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 53. Calm wind.

    Low: 53 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93. Calm wind.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 53. Calm wind.

    Low: 53 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 93. Calm wind.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 52.

    Low: 52 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Friday Night

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

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 91. Light and variable wind.
Tonight
Clear, with a low around 53. Calm wind.
Wednesday
Sunny, with a high near 93. Calm wind.
Wednesday Night
Clear, with a low around 53. Calm wind.
Thursday
Sunny, with a high near 93. Calm wind.
Thursday Night
Clear, with a low around 52.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 42.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 33.
Columbus Day
Sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNE Montague CA
 41.86°N 122.45°W (Elev. 2598 ft)
11:26 am PDT Oct 6, 2026
12pm PDT Oct 6, 2026-6pm PDT Oct 12, 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