Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Mostly Cloudy

52°F

11°C

Humidity 50%
Wind Speed N 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 13 Apr 12:35 PM PDT
Extended Forecast for

15 Miles ESE Happy Camp CA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 42. West northwest wind around 7 mph.

    High: 42 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 32. West wind 3 to 8 mph.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 48. Light west wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 48 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow after 11pm.  Mostly cloudy, with a low around 36. West southwest wind 9 to 13 mph, with gusts as high as 23 mph.  New snow accumulation of less than a half inch possible.

    Low: 36 °F

    Chance Snow

  • Wednesday

    Wednesday: Snow.  High near 37. Southwest wind 9 to 16 mph, with gusts as high as 31 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Snow

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow showers before 11pm.  Partly cloudy, with a low around 26. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 42. West northwest wind around 7 mph.
Tonight
Partly cloudy, with a low around 32. West wind 3 to 8 mph.
Tuesday
Increasing clouds, with a high near 48. Light west wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.
Tuesday Night
A 30 percent chance of snow after 11pm. Mostly cloudy, with a low around 36. West southwest wind 9 to 13 mph, with gusts as high as 23 mph. New snow accumulation of less than a half inch possible.
Wednesday
Snow. High near 37. Southwest wind 9 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday Night
A 50 percent chance of snow showers before 11pm. Partly cloudy, with a low around 26. New snow accumulation of less than a half inch possible.
Thursday
Sunny, with a high near 39.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 51.
Friday Night
Partly cloudy, with a low around 36.
Saturday
Partly sunny, with a high near 54.
Saturday Night
A chance of rain and snow. Snow level 6900 feet lowering to 6000 feet after midnight . Mostly cloudy, with a low around 39.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ESE Happy Camp CA
 41.74°N 123.07°W (Elev. 5745 ft)
11:26 am PDT Apr 13, 2026
12pm PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database