Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

LA HONDA (LAHC1)

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

NA

52°F

11°C

Humidity 48%
Wind Speed ENE 3 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 18 Jan 09:07 PM PST
Extended Forecast for

4 Miles S Portola Valley CA

  • Tonight

    Tonight: Partly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 66. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 66. Calm wind.

    High: 66 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 58. Calm wind.
M.L.King Day
Sunny, with a high near 66. Calm wind becoming north northeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 51. Calm wind.
Tuesday
Mostly sunny, with a high near 66. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 50. Calm wind.
Wednesday
Partly sunny, with a high near 64.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 48.
Friday
Mostly sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Portola Valley CA
 37.3°N 122.23°W (Elev. 1447 ft)
12:26 pm PST Jan 18, 2026
10pm PST Jan 18, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database