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

59°F

15°C

Humidity 74%
Wind Speed SSW 2 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 31 Mar 09:10 PM PDT
Extended Forecast for

Cupertino CA

  • Tonight

    Tonight: A slight chance of rain before 3am, then a slight chance of rain after 4am.  Partly cloudy, with a low around 50. Light south wind.  Chance of precipitation is 20%.

    Low: 50 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain, mainly after 11am.  Partly sunny, with a high near 65. Light and variable wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain, mainly after 11pm.  Low around 46. West southwest wind around 7 mph becoming northwest after midnight.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Rain

  • Thursday

    Thursday: Sunny, with a high near 64. North northwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 43. Northwest wind 8 to 13 mph becoming light north northwest  after midnight. Winds could gust as high as 21 mph.

    Low: 43 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Friday Night

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

    Low: 48 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

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

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of rain before 3am, then a slight chance of rain after 4am. Partly cloudy, with a low around 50. Light south wind. Chance of precipitation is 20%.
Wednesday
A 50 percent chance of rain, mainly after 11am. Partly sunny, with a high near 65. Light and variable wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain, mainly after 11pm. Low around 46. West southwest wind around 7 mph becoming northwest after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Sunny, with a high near 64. North northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 43. Northwest wind 8 to 13 mph becoming light north northwest after midnight. Winds could gust as high as 21 mph.
Friday
Sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 51.
Monday
Mostly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Cupertino CA
 37.31°N 122.06°W (Elev. 610 ft)
8:41 pm PDT Mar 31, 2026
9pm PDT Mar 31, 2026-6pm PDT Apr 7, 2026
 
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Additional Resources

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