Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

LOS ALTOS (LOAC1)

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

NA

91°F

33°C

Humidity 21%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Heat Index87°F (31°C)
Last update 20 Mar 02:10 PM PDT
Extended Forecast for

2 Miles SSW Los Altos Hills CA

Heat Advisory March 20, 02:22pm until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 20, 02:22pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 74. Calm wind becoming west northwest 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 49. West northwest wind 5 to 7 mph becoming calm  after midnight. Winds could gust as high as 20 mph.

    Low: 49 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 73 °F

    Sunny

  • Sunday Night

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

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 88. North northwest wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 58. Calm wind.
Saturday
Mostly sunny, with a high near 74. Calm wind becoming west northwest 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.
Saturday Night
Mostly clear, with a low around 49. West northwest wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 73. Calm wind becoming northwest around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 48.
Monday
Sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 51.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Mostly sunny, with a high near 72.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Los Altos Hills CA
 37.34°N 122.15°W (Elev. 1506 ft)
2:07 pm PDT Mar 20, 2026
2pm PDT Mar 20, 2026-6pm PDT Mar 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