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

Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather 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 CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

Current conditions at

Alturas (KAAT)

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

Mostly Cloudy

36°F

2°C

Humidity 93%
Wind Speed WSW 3 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 14 Apr 04:35 AM PDT
Extended Forecast for

3 Miles ENE Alturas CA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 60. Light and variable wind becoming west southwest 8 to 13 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 60 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: A slight chance of rain before 2am, then a slight chance of rain after 4am. Snow level 7000 feet lowering to 6400 feet after midnight . Mostly cloudy, with a low around 37. South southwest wind 8 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 37 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Rain. Snow level 6300 feet. High near 52. Breezy, with a southwest wind 8 to 18 mph increasing to 18 to 28 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 80%.

    High: 52 °F

    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain before 8pm, then snow. Low around 19. Breezy, with a west southwest wind 21 to 26 mph becoming northwest 9 to 14 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Rain/Snow and
    Breezy then
    Chance Snow

  • Thursday

    Thursday: A 20 percent chance of snow before 11am. Mostly sunny, with a high near 46. Light northwest wind becoming north northwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 46 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 18.

    Low: 18 °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 27.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 60. Light and variable wind becoming west southwest 8 to 13 mph in the afternoon. Winds could gust as high as 18 mph.
Tonight
A slight chance of rain before 2am, then a slight chance of rain after 4am. Snow level 7000 feet lowering to 6400 feet after midnight . Mostly cloudy, with a low around 37. South southwest wind 8 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Wednesday
Rain. Snow level 6300 feet. High near 52. Breezy, with a southwest wind 8 to 18 mph increasing to 18 to 28 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 80%.
Wednesday Night
Rain before 8pm, then snow. Low around 19. Breezy, with a west southwest wind 21 to 26 mph becoming northwest 9 to 14 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
A 20 percent chance of snow before 11am. Mostly sunny, with a high near 46. Light northwest wind becoming north northwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 18.
Friday
Sunny, with a high near 57.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
A chance of rain. Snow level 6500 feet rising to 7100 feet in the afternoon. Partly sunny, with a high near 63. Breezy.
Sunday Night
A chance of rain and snow. Snow level 7100 feet lowering to 5300 feet after midnight . Mostly cloudy, with a low around 33.
Monday
A chance of rain and snow. Snow level 4700 feet rising to 5400 feet in the afternoon. Partly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Alturas CA
 41.5°N 120.5°W (Elev. 4406 ft)
Last Update:
4:41 am PDT Apr 14, 2026
Forecast Valid:
4am PDT Apr 14, 2026-6pm PDT Apr 20, 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