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

41°F

5°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 13 Apr 12:00 AM PDT
Extended Forecast for

16 Miles NNE Weed CA

  • Overnight

    Overnight: A slight chance of rain and snow showers between 1am and 2am.  Snow level 4900 feet. Mostly cloudy, with a low around 33. Southwest wind around 6 mph.  Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Rain/Snow

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 49. Light west southwest wind becoming west 5 to 9 mph in the morning.

    High: 49 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32. West wind 5 to 9 mph.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 55. West southwest wind 5 to 13 mph, with gusts as high as 18 mph.

    High: 55 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain showers before 2am, then a chance of rain and snow showers.  Snow level 6700 feet lowering to 5400 feet after midnight . Mostly cloudy, with a low around 37. West southwest wind 11 to 17 mph, with gusts as high as 23 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 37 °F

    Slight Chance
    Showers then
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A chance of rain and snow showers before 11am, then rain showers between 11am and 2pm, then rain, possibly mixed with snow showers after 2pm.  Snow level 5600 feet. High near 46. Breezy.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 46 °F

    Rain/Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain, possibly mixed with snow showers, becoming all snow after 8pm.  Low around 22. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Thursday

    Thursday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

  • Thursday Night

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

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Overnight
A slight chance of rain and snow showers between 1am and 2am. Snow level 4900 feet. Mostly cloudy, with a low around 33. Southwest wind around 6 mph. Chance of precipitation is 20%.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 49. Light west southwest wind becoming west 5 to 9 mph in the morning.
Monday Night
Mostly cloudy, with a low around 32. West wind 5 to 9 mph.
Tuesday
Mostly sunny, with a high near 55. West southwest wind 5 to 13 mph, with gusts as high as 18 mph.
Tuesday Night
A slight chance of rain showers before 2am, then a chance of rain and snow showers. Snow level 6700 feet lowering to 5400 feet after midnight . Mostly cloudy, with a low around 37. West southwest wind 11 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Wednesday
A chance of rain and snow showers before 11am, then rain showers between 11am and 2pm, then rain, possibly mixed with snow showers after 2pm. Snow level 5600 feet. High near 46. Breezy. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain, possibly mixed with snow showers, becoming all snow after 8pm. Low around 22. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
Sunny, with a high near 43.
Thursday Night
Mostly clear, with a low around 25.
Friday
Sunny, with a high near 55.
Friday Night
Partly cloudy, with a low around 34.
Saturday
Mostly sunny, with a high near 59.
Saturday Night
A slight chance of rain. Snow level 7000 feet lowering to 6200 feet after midnight . Mostly cloudy, with a low around 38.
Sunday
A chance of rain and snow. Snow level 5800 feet. Partly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NNE Weed CA
 41.61°N 122.23°W (Elev. 4816 ft)
11:51 pm PDT Apr 12, 2026
12am PDT Apr 13, 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