Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

LA HONDA (LAHC1)

Lat: 37.30523°NLon: 122.25525°WElev: 804.0ft.

NA

67°F

19°C

Humidity 34%
Wind Speed NE 4 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 08 Dec 03:07 PM PST
Extended Forecast for

3 Miles SSW Portola Valley CA

  • Tonight

    Tonight: Mostly clear, with a low around 49. Light northeast wind.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 63. North wind 3 to 6 mph.

    High: 63 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49. Calm wind.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65. North wind around 6 mph.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. Light north northeast wind.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 49.

    Low: 49 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 49. Light northeast wind.
Tuesday
Sunny, with a high near 63. North wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 49. Calm wind.
Wednesday
Sunny, with a high near 65. North wind around 6 mph.
Wednesday Night
Mostly clear, with a low around 51. Light north northeast wind.
Thursday
Sunny, with a high near 66.
Thursday Night
Clear, with a low around 49.
Friday
Sunny, with a high near 66.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 62.
Sunday Night
Mostly cloudy, with a low around 50.
Monday
A slight chance of rain. Partly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Portola Valley CA
 37.32°N 122.24°W (Elev. 997 ft)
12:26 pm PST Dec 8, 2025
3pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database