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

43°F

6°C

Humidity 75%
Wind Speed SW 3 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 13 Apr 01:00 AM PDT
Extended Forecast for

15 Miles ESE Happy Camp CA

  • Overnight

    Overnight: Partly cloudy, with a low around 32. West wind around 6 mph.

    Low: 32 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 42. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 42 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33. West wind 6 to 9 mph.

    Low: 33 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 48. Light west wind increasing to 5 to 10 mph in the afternoon.

    High: 48 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow showers, mainly after 11pm.  Mostly cloudy, with a low around 37. West southwest wind 13 to 15 mph, with gusts as high as 23 mph.  New snow accumulation of less than a half inch possible.

    Low: 37 °F

    Chance Snow
    Showers

  • Wednesday

    Wednesday: Snow showers.  High near 38. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Snow Showers

  • Wednesday Night

    Wednesday Night: Snow showers likely before 11pm.  Mostly cloudy, with a low around 25. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Snow Showers
    Likely 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

Detailed Forecast

Overnight
Partly cloudy, with a low around 32. West wind around 6 mph.
Monday
Partly sunny, with a high near 42. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 33. West wind 6 to 9 mph.
Tuesday
Partly sunny, with a high near 48. Light west wind increasing to 5 to 10 mph in the afternoon.
Tuesday Night
A 30 percent chance of snow showers, mainly after 11pm. Mostly cloudy, with a low around 37. West southwest wind 13 to 15 mph, with gusts as high as 23 mph. New snow accumulation of less than a half inch possible.
Wednesday
Snow showers. High near 38. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow showers likely before 11pm. Mostly cloudy, with a low around 25. Chance of precipitation is 60%. 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 37.
Saturday
Mostly sunny, with a high near 54.
Saturday Night
A slight chance of rain and snow. Snow level 6900 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 40.
Sunday
A chance of rain and snow. Partly sunny, with a high near 47.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ESE Happy Camp CA
 41.74°N 123.07°W (Elev. 5745 ft)
1:01 am PDT Apr 13, 2026
1am PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database