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

Alturas (KAAT)

Lat: 41.48362°NLon: 120.5615°WElev: 4383.0ft.

Rain

43°F

6°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 29.83 in (1010.16 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 11 Apr 01:00 AM PDT
Extended Forecast for

11 Miles ENE Bieber CA

  • Overnight

    Overnight: A chance of rain before 3am, then a slight chance of rain after 5am.  Snow level 6300 feet. Mostly cloudy, with a steady temperature around 40. Light south southeast wind.  Chance of precipitation is 30%.

    Low: 40 °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.  Snow level 6100 feet rising to 6600 feet in the afternoon. High near 52. Southeast wind 7 to 17 mph becoming southwest in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 52 °F

    Showers

  • Saturday Night

    Saturday Night: Rain, possibly mixing with snow after 3am, then gradually ending.  Snow level 6200 feet lowering to 4300 feet after midnight . Low around 31. Southeast wind 3 to 8 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 31 °F

    Rain then
    Rain/Snow
    Likely

  • Sunday

    Sunday: Snow likely before 11am, then rain, possibly mixed with snow showers between 11am and 2pm, then rain showers after 2pm. Some thunder is also possible.  Snow level rising to 5000 feet in the afternoon. High near 47. Light and variable wind becoming southwest 5 to 8 mph in the afternoon.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 47 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Rain likely, possibly mixed with snow before 11pm, then a chance of rain between 11pm and 2am, then a chance of rain and snow after 2am.  Snow level 4900 feet. Mostly cloudy, with a low around 32. West southwest wind 5 to 10 mph becoming light  in the evening.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

  • Monday

    Monday: A chance of rain and snow before 11am, then a chance of rain.  Snow level 4500 feet rising to 5400 feet in the afternoon. Mostly cloudy, with a high near 49. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 49 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of rain before 3am, then a slight chance of rain after 5am. Snow level 6300 feet. Mostly cloudy, with a steady temperature around 40. Light south southeast wind. Chance of precipitation is 30%.
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. Snow level 6100 feet rising to 6600 feet in the afternoon. High near 52. Southeast wind 7 to 17 mph becoming southwest in the afternoon. Winds could gust as high as 30 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, possibly mixing with snow after 3am, then gradually ending. Snow level 6200 feet lowering to 4300 feet after midnight . Low around 31. Southeast wind 3 to 8 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Sunday
Snow likely before 11am, then rain, possibly mixed with snow showers between 11am and 2pm, then rain showers after 2pm. Some thunder is also possible. Snow level rising to 5000 feet in the afternoon. High near 47. Light and variable wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.
Sunday Night
Rain likely, possibly mixed with snow before 11pm, then a chance of rain between 11pm and 2am, then a chance of rain and snow after 2am. Snow level 4900 feet. Mostly cloudy, with a low around 32. West southwest wind 5 to 10 mph becoming light in the evening. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday
A chance of rain and snow before 11am, then a chance of rain. Snow level 4500 feet rising to 5400 feet in the afternoon. Mostly cloudy, with a high near 49. Chance of precipitation is 50%. Little or no snow accumulation expected.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Mostly sunny, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
A chance of rain, mainly after 11am. Snow level 6200 feet. Partly sunny, with a high near 53.
Wednesday Night
A chance of rain. Snow level 6300 feet lowering to 4200 feet after midnight . Mostly cloudy, with a low around 28.
Thursday
A slight chance of snow. Mostly sunny, with a high near 53.
Thursday Night
Mostly clear, with a low around 26.
Friday
Sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles ENE Bieber CA
 41.19°N 120.96°W (Elev. 4199 ft)
11:26 pm PDT Apr 10, 2026
1am PDT Apr 11, 2026-6pm PDT Apr 17, 2026
 
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