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

46°F

8°C

Humidity 52%
Wind Speed NNE 4 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 15 Apr 05:00 AM PDT
Extended Forecast for

Montague CA

  • Overnight

    Overnight: A 20 percent chance of rain. Snow level 5300 feet. Mostly cloudy, with a steady temperature around 43. North northeast wind around 5 mph.

    Low: 43 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Rain, mainly between 1pm and 5pm. Snow level 6000 feet lowering to 5100 feet in the afternoon . High near 55. Light and variable wind becoming west southwest 11 to 16 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 80%.

    High: 55 °F

    Chance Rain
    then Rain

  • Wednesday Night

    Wednesday Night: A 10 percent chance of rain before 7pm. Widespread frost after 2am. 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

    Slight Chance
    Rain then
    Frost

  • Thursday

    Thursday: Widespread frost before 11am. Otherwise, sunny, with a high near 53. Light north wind increasing to 8 to 13 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 53 °F

    Frost then
    Sunny

  • Thursday Night

    Thursday Night: Widespread frost after 11pm. Otherwise, clear, with a low around 27. North wind 9 to 14 mph becoming light in the evening. Winds could gust as high as 21 mph.

    Low: 27 °F

    Frost

  • Friday

    Friday: Widespread frost before 11am. Otherwise, sunny, with a high near 63.

    High: 63 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain after 11pm. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

Detailed Forecast

Overnight
A 20 percent chance of rain. Snow level 5300 feet. Mostly cloudy, with a steady temperature around 43. North northeast wind around 5 mph.
Wednesday
Rain, mainly between 1pm and 5pm. Snow level 6000 feet lowering to 5100 feet in the afternoon . High near 55. Light and variable wind becoming west southwest 11 to 16 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 80%.
Wednesday Night
A 10 percent chance of rain before 7pm. Widespread frost after 2am. 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 53. 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 27. North wind 9 to 14 mph becoming light in the evening. Winds could gust as high as 21 mph.
Friday
Widespread frost before 11am. Otherwise, sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 33.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
A chance of rain after 11pm. Mostly cloudy, with a low around 41.
Sunday
A chance of rain. Mostly cloudy, with a high near 64.
Sunday Night
A chance of rain. Snow level 6000 feet lowering to 5200 feet after midnight . Mostly cloudy, with a low around 39.
Monday
A slight chance of rain. Snow level 5100 feet rising to 5800 feet in the afternoon. Partly sunny, with a high near 65.
Monday Night
A slight chance of rain. Snow level 6100 feet lowering to 5500 feet after midnight . Mostly cloudy, with a low around 39.
Tuesday
A slight chance of rain. Snow level 5400 feet rising to 6300 feet in the afternoon. Partly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.72°N 122.53°W (Elev. 2598 ft)
Last Update:
4:56 am PDT Apr 15, 2026
Forecast Valid:
5am PDT Apr 15, 2026-6pm PDT Apr 21, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation