Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Southern Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over the Northern Mariana Islands. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes through Tuesday. Heavy snow is expected in the Pacific Northwest. Read More >

Current conditions at

Alturas (KAAT)

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

Partly Cloudy

36°F

2°C

Humidity 86%
Wind Speed WSW 3 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 14 Apr 12:00 AM PDT
Extended Forecast for

11 Miles ENE Bieber CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 57. Light and variable wind becoming west southwest 9 to 14 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 57 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: A slight chance of rain between 11pm and 1am.  Snow level 6700 feet. Mostly cloudy, with a low around 38. West southwest wind 11 to 16 mph decreasing to 5 to 10 mph in the evening. Winds could gust as high as 24 mph.  Chance of precipitation is 20%.

    Low: 38 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 11am.  Snow level 6200 feet. Mostly cloudy, with a high near 50. Breezy, with a west southwest wind 5 to 10 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 34 mph.  Chance of precipitation is 70%.

    High: 50 °F

    Rain Likely
    and Breezy

  • Wednesday Night

    Wednesday Night: Rain before 8pm, then rain and snow between 8pm and 11pm, then a chance of snow after 11pm.  Low around 23. Breezy, with a west southwest wind 13 to 23 mph becoming north after midnight. Winds could gust as high as 34 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Rain/Snow and
    Breezy then
    Chance Snow

  • Thursday

    Thursday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 32. Calm wind.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 57. Light and variable wind becoming west southwest 9 to 14 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
A slight chance of rain between 11pm and 1am. Snow level 6700 feet. Mostly cloudy, with a low around 38. West southwest wind 11 to 16 mph decreasing to 5 to 10 mph in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 20%.
Wednesday
Rain likely, mainly after 11am. Snow level 6200 feet. Mostly cloudy, with a high near 50. Breezy, with a west southwest wind 5 to 10 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 70%.
Wednesday Night
Rain before 8pm, then rain and snow between 8pm and 11pm, then a chance of snow after 11pm. Low around 23. Breezy, with a west southwest wind 13 to 23 mph becoming north after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
Sunny, with a high near 47.
Thursday Night
Mostly clear, with a low around 23.
Friday
Sunny, with a high near 57.
Friday Night
Partly cloudy, with a low around 31.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
Mostly cloudy, with a low around 37.
Sunday
A chance of rain. Snow level 6400 feet rising to 7000 feet in the afternoon. Partly sunny, with a high near 60.
Sunday Night
A chance of rain and snow. Snow level 6900 feet lowering to 5100 feet after midnight . Mostly cloudy, with a low around 35.
Monday
Rain and snow likely. Snow level 4600 feet rising to 5400 feet in the afternoon. Partly sunny, with a high near 53.
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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 13, 2026
12am PDT Apr 14, 2026-6pm PDT Apr 20, 2026
 
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Additional Resources

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