Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains tonight, crossing the Midwest and reaching the Gulf Coast Friday night. Dangerously cold temperatures will persist across the eastern U.S. into early February. There is increasing confidence for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

54°F

12°C

Humidity 67%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 29 Jan 09:10 AM PST
Extended Forecast for

5 Miles WSW Cupertino CA

  • Today

    Today: Sunny, with a high near 63. Light northeast wind.

    High: 63 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a steady temperature around 53. Northeast wind 3 to 5 mph.

    Low: 53 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 64. North northeast wind 3 to 5 mph.

    High: 64 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 51. East wind 3 to 6 mph.

    Low: 51 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 67. East wind around 6 mph becoming calm  in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 63. Light northeast wind.
Tonight
Partly cloudy, with a steady temperature around 53. Northeast wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 64. North northeast wind 3 to 5 mph.
Friday Night
Mostly cloudy, with a low around 51. East wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 67. East wind around 6 mph becoming calm in the afternoon.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Partly sunny, with a high near 61.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Sunny, with a high near 61.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 64.
Tuesday Night
Clear, with a low around 48.
Wednesday
Sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Cupertino CA
 37.29°N 122.14°W (Elev. 1798 ft)
12:26 am PST Jan 29, 2026
9am PST Jan 29, 2026-6pm PST Feb 4, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database