Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Hazardous Weather Conditions

Current conditions at

LOS ALTOS (LOAC1)

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

NA

88°F

31°C

Humidity 29%
Wind Speed NE 1 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Heat Index86°F (30°C)
Last update 17 Mar 02:10 PM PDT
Extended Forecast for

4 Miles S Los Altos Hills CA

Heat Advisory March 17, 02:28pm until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 17, 02:28pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 70. North northwest wind around 6 mph becoming light and variable  after midnight.

    Low: 70 °F

    Clear

  • Wednesday

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

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 70. North wind 3 to 6 mph.

    Low: 70 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 84. North northwest wind 3 to 5 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 71.

    Low: 71 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 83. North wind around 5 mph.
Tonight
Clear, with a low around 70. North northwest wind around 6 mph becoming light and variable after midnight.
Wednesday
Sunny, with a high near 84. Light and variable wind becoming north northwest around 6 mph in the afternoon.
Wednesday Night
Clear, with a low around 70. North wind 3 to 6 mph.
Thursday
Sunny, with a high near 84. North northwest wind 3 to 5 mph.
Thursday Night
Clear, with a low around 71.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 67.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 68.
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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)
1:49 pm PDT Mar 17, 2026
2pm PDT Mar 17, 2026-6pm PDT Mar 23, 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