National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Overcast

57°F

14°C

Humidity 30%
Wind Speed W 10 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 14 Apr 06:30 PM PDT
Extended Forecast for

Montague CA

  • Tonight

    Tonight: A slight chance of rain before 2am, then a chance of rain after 4am. Snow level 6100 feet lowering to 4700 feet after midnight . Cloudy, with a low around 42. West northwest wind 9 to 14 mph becoming light and variable. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

    Low: 42 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain, mainly after 10am. Snow level 4900 feet rising to 5600 feet in the afternoon. High near 55. North northeast wind 5 to 10 mph becoming west southwest 11 to 16 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Chance Rain
    then Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain before 11pm. Widespread frost after 2am. Snow level 4600 feet lowering to 2600 feet after midnight . Otherwise, partly cloudy, with a low around 28. West northwest wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.

    Low: 28 °F

    Chance Rain
    then Frost

  • Thursday

    Thursday: Widespread frost before 11am. Otherwise, sunny, with a high near 52. Light north wind increasing to 8 to 13 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 52 °F

    Frost then
    Sunny

  • Thursday Night

    Thursday Night: Widespread frost after 11pm. Otherwise, clear, with a low around 25. North wind 9 to 14 mph becoming light in the evening. Winds could gust as high as 23 mph.

    Low: 25 °F

    Frost

  • Friday

    Friday: Widespread frost before 11am. Otherwise, sunny, with a high near 62.

    High: 62 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of rain after 11pm. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

Detailed Forecast

Tonight
A slight chance of rain before 2am, then a chance of rain after 4am. Snow level 6100 feet lowering to 4700 feet after midnight . Cloudy, with a low around 42. West northwest wind 9 to 14 mph becoming light and variable. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Wednesday
Rain, mainly after 10am. Snow level 4900 feet rising to 5600 feet in the afternoon. High near 55. North northeast wind 5 to 10 mph becoming west southwest 11 to 16 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 30 percent chance of rain before 11pm. Widespread frost after 2am. Snow level 4600 feet lowering to 2600 feet after midnight . Otherwise, partly cloudy, with a low around 28. West northwest wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.
Thursday
Widespread frost before 11am. Otherwise, sunny, with a high near 52. Light north wind increasing to 8 to 13 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Widespread frost after 11pm. Otherwise, clear, with a low around 25. North wind 9 to 14 mph becoming light in the evening. Winds could gust as high as 23 mph.
Friday
Widespread frost before 11am. Otherwise, sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 32.
Saturday
Partly sunny, with a high near 68.
Saturday Night
A chance of rain after 11pm. Mostly cloudy, with a low around 40.
Sunday
A chance of rain. Snow level 5600 feet. Mostly cloudy, with a high near 60.
Sunday Night
A chance of rain. Snow level 5500 feet lowering to 4600 feet after midnight . Mostly cloudy, with a low around 35.
Monday
A chance of rain. Snow level 4300 feet rising to 5000 feet in the afternoon. Mostly cloudy, with a high near 56.
Monday Night
A slight chance of rain. Snow level 5300 feet lowering to 4700 feet after midnight . Mostly cloudy, with a low around 34.
Tuesday
Partly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.72°N 122.53°W (Elev. 2598 ft)
Last Update:
4:41 pm PDT Apr 14, 2026
Forecast Valid:
6pm PDT Apr 14, 2026-6pm PDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation