Critical Fire Weather in the High Plains and Midwest; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central/southern High Plains and portions of the Midwest. Two Pacific storms will continue to bring heavy mountain snow and gusty winds to the western U.S. through Thursday. A swath of wintry weather, including heavy snow and a wintry mix, is expected from the Northern Plains to New England. Read More >

Current conditions at

LOS ALTOS (LOAC1)

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

NA

39°F

4°C

Humidity 92%
Wind Speed WNW 2 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 18 Feb 07:10 AM PST
Extended Forecast for

5 Miles WSW Cupertino CA

Cold Weather Advisory until February 18, 09:00am
Click here for hazard details and duration
...
  •  
    Cold Weather Advisory until February 18, 09:00am

    NOW until 9:00am Wed

    Cold Weather Advisory

  • Today

    High: 44 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Tonight

    Tonight: Rain, mainly after midnight.  Low around 37. South southwest wind 11 to 16 mph becoming west northwest 5 to 10 mph after midnight. Winds could gust as high as 29 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 37 °F

    Chance Rain
    then Rain

  • Thursday

    Thursday: Rain.  High near 44. West northwest wind 13 to 16 mph, with gusts as high as 37 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 44 °F

    Rain then
    Rain Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of rain.  Partly cloudy, with a low around 38. West northwest wind 7 to 13 mph, with gusts as high as 32 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance Rain

  • Friday

    Friday: Mostly sunny, with a high near 48. Northwest wind around 5 mph.

    High: 48 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 10 percent chance of rain after 4am.  Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A 30 percent chance of rain, mainly after 10am.  Partly sunny, with a high near 52.

    High: 52 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly after 10pm.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Rain Likely

Detailed Forecast

Today
Rain and snow before 1pm, then a chance of rain. High near 44. North northwest wind 5 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tonight
Rain, mainly after midnight. Low around 37. South southwest wind 11 to 16 mph becoming west northwest 5 to 10 mph after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Rain. High near 44. West northwest wind 13 to 16 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A 30 percent chance of rain. Partly cloudy, with a low around 38. West northwest wind 7 to 13 mph, with gusts as high as 32 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly sunny, with a high near 48. Northwest wind around 5 mph.
Friday Night
A 10 percent chance of rain after 4am. Partly cloudy, with a low around 39.
Saturday
A 30 percent chance of rain, mainly after 10am. Partly sunny, with a high near 52.
Saturday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 48.
Sunday
Rain. Mostly cloudy, with a high near 56.
Sunday Night
Rain. Cloudy, with a low around 53.
Monday
Rain. Cloudy, with a high near 56.
Monday Night
Rain. Cloudy, with a low around 50.
Tuesday
Rain. Mostly cloudy, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Cupertino CA
 37.29°N 122.14°W (Elev. 1798 ft)
2:29 am PST Feb 18, 2026
7am PST Feb 18, 2026-6pm PST Feb 24, 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