Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. 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 61%
Wind Speed S 4 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 12 Apr 08:00 PM PDT
Extended Forecast for

Montague CA

  • Tonight

    Tonight: A 30 percent chance of rain between 10pm and midnight.  Snow level 4900 feet. Mostly cloudy, with a low around 36. South wind around 6 mph becoming calm  in the evening.

    Low: 36 °F

    Chance Rain
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 57. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 57 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37. North northwest wind around 6 mph becoming calm  in the evening.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 63. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    High: 63 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 11pm.  Snow level 6100 feet lowering to 4800 feet after midnight . Mostly cloudy, with a low around 38. West wind 6 to 11 mph becoming light west southwest  after midnight. Winds could gust as high as 21 mph.

    Low: 38 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Rain, mainly after 11am.  Snow level 4700 feet rising to 5600 feet in the afternoon. High near 54. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain before 11pm.  Snow level 5200 feet lowering to 2600 feet after midnight . Partly cloudy, with a low around 26.

    Low: 26 °F

    Chance Rain
    then Partly
    Cloudy

  • Thursday

    Thursday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Tonight
A 30 percent chance of rain between 10pm and midnight. Snow level 4900 feet. Mostly cloudy, with a low around 36. South wind around 6 mph becoming calm in the evening.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 57. Calm wind becoming north northwest around 6 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 37. North northwest wind around 6 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 63. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Tuesday Night
A 20 percent chance of rain after 11pm. Snow level 6100 feet lowering to 4800 feet after midnight . Mostly cloudy, with a low around 38. West wind 6 to 11 mph becoming light west southwest after midnight. Winds could gust as high as 21 mph.
Wednesday
Rain, mainly after 11am. Snow level 4700 feet rising to 5600 feet in the afternoon. High near 54. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 30 percent chance of rain before 11pm. Snow level 5200 feet lowering to 2600 feet after midnight . Partly cloudy, with a low around 26.
Thursday
Sunny, with a high near 53.
Thursday Night
Mostly clear, with a low around 25.
Friday
Sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 32.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
A chance of rain. Partly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.72°N 122.53°W (Elev. 2598 ft)
4:56 pm PDT Apr 12, 2026
8pm PDT Apr 12, 2026-6pm PDT Apr 19, 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