Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring elevated to critical fire weather conditions to the southern High Plains through the weekend. A winter storm will track across the Great Lakes and Northeast U.S. into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

39°F

4°C

Humidity 88%
Wind Speed W 2 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 20 Feb 05:10 AM PST
Extended Forecast for

5 Miles WSW Cupertino CA

Cold Weather Advisory until February 20, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until February 20, 09:00am

    NOW until 9:00am Fri

    Cold Weather Advisory

  • Overnight

    Low: 38 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 48. Light and variable wind.

    High: 48 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Increasing clouds, with a low around 39. South wind 3 to 7 mph.

    Low: 39 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 51. South wind 9 to 13 mph, with gusts as high as 30 mph.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly after 4am.  Partly cloudy, with a low around 46. South southeast wind around 14 mph, with gusts as high as 36 mph.

    Low: 46 °F

    Chance Rain

  • Sunday

    Sunday: A 30 percent chance of rain, mainly before 10am.  Partly sunny, with a high near 59.

    High: 59 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A 20 percent chance of rain.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Slight Chance
    Rain

  • Monday

    Monday: A chance of rain, mainly after 4pm.  Partly sunny, with a high near 62.

    High: 62 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 38. North northwest wind around 6 mph.
Friday
Mostly cloudy, with a high near 48. Light and variable wind.
Friday Night
Increasing clouds, with a low around 39. South wind 3 to 7 mph.
Saturday
Mostly sunny, with a high near 51. South wind 9 to 13 mph, with gusts as high as 30 mph.
Saturday Night
A 30 percent chance of rain, mainly after 4am. Partly cloudy, with a low around 46. South southeast wind around 14 mph, with gusts as high as 36 mph.
Sunday
A 30 percent chance of rain, mainly before 10am. Partly sunny, with a high near 59.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 50.
Monday
A chance of rain, mainly after 4pm. Partly sunny, with a high near 62.
Monday Night
Rain likely, mainly after 10pm. Cloudy, with a low around 54.
Tuesday
Rain. Cloudy, with a high near 56.
Tuesday Night
Rain. Cloudy, with a low around 52.
Wednesday
Rain likely. Mostly cloudy, with a high near 60.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 51.
Thursday
A chance of rain. Partly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Cupertino CA
 37.29°N 122.14°W (Elev. 1798 ft)
12:32 am PST Feb 20, 2026
5am PST Feb 20, 2026-6pm PST Feb 26, 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