Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

43°F

6°C

Humidity 52%
Wind Speed N 9 MPH
Barometer 29.76 in (1007.79 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 10 Oct 10:05 PM PDT
Extended Forecast for

Montague CA

Freeze Warning October 12, 02:00am until October 12, 09:00am
Freeze Warning October 11, 02:00am until October 11, 08:00am
Click here for hazard details and duration
Freeze Warning
Freeze Warning
  • Tonight

    Tonight: Widespread frost, mainly after 5am.  Otherwise, mostly clear, with a low around 30. North northwest wind 6 to 9 mph.

    Low: 30 °F

    Mostly Clear
    then Frost

  • Sunday

    Sunday: Widespread frost before 9am.  Otherwise, sunny, with a high near 62. North northeast wind 7 to 12 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 62 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 25. North wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 30 mph.

    Low: 25 °F

    Clear

  • Columbus Day

    Columbus Day: Widespread frost before 10am.  Otherwise, sunny, with a high near 62. Light and variable wind.

    High: 62 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 30. North wind 5 to 7 mph becoming calm  in the evening.

    Low: 30 °F

    Clear

  • Tuesday

    Tuesday: Widespread frost before 9am.  Otherwise, sunny, with a high near 69.

    High: 69 °F

    Frost then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

Detailed Forecast

Tonight
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 30. North northwest wind 6 to 9 mph.
Sunday
Widespread frost before 9am. Otherwise, sunny, with a high near 62. North northeast wind 7 to 12 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.
Sunday Night
Clear, with a low around 25. North wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 30 mph.
Columbus Day
Widespread frost before 10am. Otherwise, sunny, with a high near 62. Light and variable wind.
Monday Night
Clear, with a low around 30. North wind 5 to 7 mph becoming calm in the evening.
Tuesday
Widespread frost before 9am. Otherwise, sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 35.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Clear, with a low around 38.
Thursday
Sunny, with a high near 80.
Thursday Night
Clear, with a low around 41.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 80.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.74°N 122.53°W (Elev. 2589 ft)
4:41 pm PDT Oct 10, 2026
10pm PDT Oct 10, 2026-6pm PDT Oct 17, 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