National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. 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 86%
Wind Speed N 0 MPH
Barometer 29.76 in (1007.79 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 11 Apr 04:20 AM PDT
Extended Forecast for

Yreka CA

  • Overnight

    Overnight: A 40 percent chance of rain. Mostly cloudy, with a low around 42. Light north wind.

    Low: 42 °F

    Chance Rain

  • Saturday

    Saturday: Rain and thunderstorms likely before 2pm, then showers and possibly a thunderstorm between 2pm and 5pm, then rain and possibly a thunderstorm after 5pm. High near 55. Light and variable wind becoming south southeast 10 to 15 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 55 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Rain, mainly before 10pm. Snow level 5600 feet lowering to 4100 feet after midnight . Low around 36. Southeast wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Rain then
    Chance Rain

  • Sunday

    Sunday: A chance of rain, then showers likely and possibly a thunderstorm after 11am. Snow level 3800 feet rising to 5000 feet in the afternoon. Mostly cloudy, with a high near 53. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 53 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of rain before 11pm. Snow level 5200 feet lowering to 4400 feet after midnight . Mostly cloudy, with a low around 37. West southwest wind around 6 mph becoming calm in the evening.

    Low: 37 °F

    Chance Rain
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of rain. Mostly cloudy, with a low around 42. Light north wind.
Saturday
Rain and thunderstorms likely before 2pm, then showers and possibly a thunderstorm between 2pm and 5pm, then rain and possibly a thunderstorm after 5pm. High near 55. Light and variable wind becoming south southeast 10 to 15 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Rain, mainly before 10pm. Snow level 5600 feet lowering to 4100 feet after midnight . Low around 36. Southeast wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A chance of rain, then showers likely and possibly a thunderstorm after 11am. Snow level 3800 feet rising to 5000 feet in the afternoon. Mostly cloudy, with a high near 53. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 30 percent chance of rain before 11pm. Snow level 5200 feet lowering to 4400 feet after midnight . Mostly cloudy, with a low around 37. West southwest wind around 6 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 55.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 62.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
A chance of rain. Snow level 4500 feet rising to 5400 feet in the afternoon. Mostly cloudy, with a high near 55.
Wednesday Night
A slight chance of rain. Snow level 5200 feet lowering to 3200 feet after midnight . Mostly cloudy, with a low around 32.
Thursday
Sunny, with a high near 58.
Thursday Night
Mostly clear, with a low around 29.
Friday
Sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
Yreka CA
 41.75°N 122.62°W (Elev. 2726 ft)
Last Update:
2:06 am PDT Apr 11, 2026
Forecast Valid:
4am PDT Apr 11, 2026-6pm PDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation