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

LA HONDA (LAHC1)

Lat: 37.30523°NLon: 122.25525°WElev: 804.0ft.

NA

59°F

15°C

Humidity 64%
Wind Speed ENE 4 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 17 Mar 04:07 AM PDT
Extended Forecast for

5 Miles WNW Portola Valley CA

Heat Advisory March 17, 04:22am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 17, 04:22am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 62. North northeast wind around 6 mph.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. Northeast wind around 6 mph becoming north northwest in the afternoon.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 63. North northwest wind around 6 mph.

    Low: 63 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 88. North northwest wind around 6 mph.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 88. East northeast wind around 6 mph.
Tonight
Mostly clear, with a low around 62. North northeast wind around 6 mph.
Wednesday
Sunny, with a high near 88. Northeast wind around 6 mph becoming north northwest in the afternoon.
Wednesday Night
Clear, with a low around 63. North northwest wind around 6 mph.
Thursday
Sunny, with a high near 88. North northwest wind around 6 mph.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 51.
Monday
Mostly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Portola Valley CA
 37.4°N 122.31°W (Elev. 2198 ft)
1:54 am PDT Mar 17, 2026
4am 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