Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

LOS ALTOS (LOAC1)

Lat: 37.35472°NLon: 122.14167°WElev: 539.0ft.

NA

46°F

8°C

Humidity 97%
Wind Speed WSW 1 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 09 Dec 06:10 PM PST
Extended Forecast for

Los Altos Hills CA

  • Tonight

    Tonight: Mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68. Calm wind.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 70. Calm wind.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 47. Calm wind.

    Low: 47 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 46. Calm wind.
Wednesday
Sunny, with a high near 68. Calm wind.
Wednesday Night
Mostly clear, with a low around 47. Calm wind.
Thursday
Sunny, with a high near 70. Calm wind.
Thursday Night
Clear, with a low around 47. Calm wind.
Friday
Sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 46.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 47.
Monday
A slight chance of rain. Partly sunny, with a high near 66.
Monday Night
A chance of rain. Mostly cloudy, with a low around 50.
Tuesday
A slight chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
Los Altos Hills CA
 37.36°N 122.13°W (Elev. 397 ft)
12:26 pm PST Dec 9, 2025
6pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database