Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Many locations are likely to set records for the highest-ever March temperature. Periods of critical fire weather will persist from the central Rockies to the central Plains through Saturday as gusty winds and low relative humidity continue. Read More >

Hazardous Weather Conditions

Current conditions at

LOS ALTOS (LOAC1)

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

NA

89°F

32°C

Humidity 34%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 57°F (14°C)
Visibility NA
Heat Index88°F (31°C)
Last update 19 Mar 03:10 PM PDT
Extended Forecast for

4 Miles S Los Altos Hills CA

Heat Advisory March 19, 03:34pm until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 19, 03:34pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 70 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 84. Light and variable wind becoming north northwest around 6 mph in the afternoon.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64. West wind around 6 mph.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 71. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53. West northwest wind 8 to 11 mph, with gusts as high as 22 mph.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 70. North wind around 6 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 84. Light and variable wind becoming north northwest around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 64. West wind around 6 mph.
Saturday
Mostly sunny, with a high near 71. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 53. West northwest wind 8 to 11 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 50.
Monday
Sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 68.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Los Altos Hills CA
 37.31°N 122.15°W (Elev. 2598 ft)
2:37 pm PDT Mar 19, 2026
3pm PDT Mar 19, 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