Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

56°F

13°C

Humidity 79%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Last update 01 Apr 02:10 AM PDT
Extended Forecast for

2 Miles NNW Portola Valley CA

  • Overnight

    Overnight: A slight chance of rain between 3am and 5am.  Mostly cloudy, with a low around 51. South southwest wind around 7 mph.  Chance of precipitation is 20%.

    Low: 51 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Rain likely, mainly between 11am and 5pm.  Partly sunny, with a high near 66. South wind 7 to 15 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain, mainly before 2am.  Low around 45. Southwest wind 7 to 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Rain

  • Thursday

    Thursday: Sunny, with a high near 64. North northwest wind 7 to 14 mph, with gusts as high as 20 mph.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 44. Northwest wind 7 to 15 mph, with gusts as high as 23 mph.

    Low: 44 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Overnight
A slight chance of rain between 3am and 5am. Mostly cloudy, with a low around 51. South southwest wind around 7 mph. Chance of precipitation is 20%.
Wednesday
Rain likely, mainly between 11am and 5pm. Partly sunny, with a high near 66. South wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain, mainly before 2am. Low around 45. Southwest wind 7 to 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Sunny, with a high near 64. North northwest wind 7 to 14 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 44. Northwest wind 7 to 15 mph, with gusts as high as 23 mph.
Friday
Sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Mostly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Portola Valley CA
 37.42°N 122.23°W (Elev. 397 ft)
2:36 am PDT Apr 1, 2026
2am PDT Apr 1, 2026-6pm PDT Apr 7, 2026
 
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Additional Resources

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