Major Winter Storm in the North-Central U.S.; Severe Weather from the Mid-South to Ohio Valley

A major winter storm will bring a swath of heavy snowfall, strong winds, blizzard conditions and freezing rain to the Northern Plains into the Great Lakes region. A line of storms will be capable of producing widespread damaging winds, tornadoes, and some large hail from the Mid-south to the Ohio Valley and the Southeast. Critical fire weather concerns shift to the southern Rockies and Plains. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

83°F

28°C

Humidity 23%
Wind Speed WNW 2 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Heat Index81°F (27°C)
Last update 15 Mar 04:10 PM PDT
Extended Forecast for

2 Miles S Cupertino CA

Heat Advisory March 16, 10:00am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: Partly cloudy, with a low around 55. North northwest wind around 6 mph becoming calm  in the evening.

    Low: 55 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 86. Calm wind becoming north around 6 mph in the afternoon.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 58. Light and variable wind.

    Low: 58 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92. Light and variable wind.

    High: 92 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 61. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 61 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 55. North northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 86. Calm wind becoming north around 6 mph in the afternoon.
Monday Night
Clear, with a low around 58. Light and variable wind.
Tuesday
Sunny, with a high near 92. Light and variable wind.
Tuesday Night
Clear, with a low around 61. North northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Clear, with a low around 60.
Thursday
Sunny, with a high near 91.
Thursday Night
Clear, with a low around 61.
Friday
Sunny, with a high near 92.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Mostly cloudy, with a low around 53.
Sunday
Mostly sunny, with a high near 77.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Cupertino CA
 37.28°N 122.06°W (Elev. 666 ft)
1:25 pm PDT Mar 15, 2026
4pm PDT Mar 15, 2026-6pm PDT Mar 22, 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