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.

Overcast

52°F

11°C

Humidity 53%
Wind Speed SSE 12 MPH
Barometer 29.74 in (1007.11 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 11 Apr 01:00 PM PDT
Extended Forecast for

11 Miles ENE Bieber CA

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm.  Snow level 6700 feet. Steady temperature around 49. South wind 9 to 14 mph, with gusts as high as 30 mph.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 49 °F

    Showers

  • Tonight

    Tonight: Showers, mainly before 1am.  Snow level 6300 feet lowering to 4400 feet after midnight . Low around 31. South southwest wind 6 to 9 mph becoming southeast in the evening. Winds could gust as high as 20 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 31 °F

    Showers

  • Sunday

    Sunday: Rain, possibly mixed with snow showers. Some thunder is also possible.  Snow level rising to 5000 feet in the afternoon. High near 47. South southeast wind 5 to 9 mph becoming west southwest in the afternoon. Winds could gust as high as 22 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 47 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow showers likely, mainly before 11pm.  Snow level 4700 feet. Mostly cloudy, with a low around 31. Southwest wind 5 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 31 °F

    Rain/Snow
    Likely

  • Monday

    Monday: Rain and snow showers likely before 11am, then a chance of rain showers.  Snow level 4400 feet rising to 5500 feet in the afternoon. Mostly cloudy, with a high near 50. Southwest wind around 6 mph becoming calm.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 50 °F

    Rain/Snow
    Likely then
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Tuesday Night

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

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain.  Snow level 6500 feet. Mostly cloudy, with a high near 53.

    High: 53 °F

    Chance Rain

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Snow level 6700 feet. Steady temperature around 49. South wind 9 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers, mainly before 1am. Snow level 6300 feet lowering to 4400 feet after midnight . Low around 31. South southwest wind 6 to 9 mph becoming southeast in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain, possibly mixed with snow showers. Some thunder is also possible. Snow level rising to 5000 feet in the afternoon. High near 47. South southeast wind 5 to 9 mph becoming west southwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday Night
Rain and snow showers likely, mainly before 11pm. Snow level 4700 feet. Mostly cloudy, with a low around 31. Southwest wind 5 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday
Rain and snow showers likely before 11am, then a chance of rain showers. Snow level 4400 feet rising to 5500 feet in the afternoon. Mostly cloudy, with a high near 50. Southwest wind around 6 mph becoming calm. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
Partly sunny, with a high near 56.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
A chance of rain. Snow level 6500 feet. Mostly cloudy, with a high near 53.
Wednesday Night
Rain likely before 11pm, then a chance of rain and snow between 11pm and 2am, then a chance of snow after 2am. Snow level 6700 feet lowering to 4200 feet after midnight . Mostly cloudy, with a low around 27.
Thursday
A slight chance of snow. Sunny, with a high near 51.
Thursday Night
Clear, with a low around 25.
Friday
Sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles ENE Bieber CA
 41.19°N 120.96°W (Elev. 4199 ft)
12:26 pm PDT Apr 11, 2026
1pm PDT Apr 11, 2026-6pm PDT Apr 17, 2026
 
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