National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High 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. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Hazardous Weather Conditions

Current conditions at

San Jose, San Jose International Airport (KSJC)

Lat: 37.35917°NLon: 121.92417°WElev: 59.0ft.

Clear

75°F

24°C

Humidity 50%
Wind Speed N 0 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 18 Mar 11:00 AM PDT
Extended Forecast for

4 Miles NNE Milpitas CA

Heat Advisory March 18, 11:20am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 18, 11:20am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 66. North wind 5 to 8 mph becoming light and variable.

    Low: 66 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 85. East northeast wind 5 to 8 mph becoming north northwest in the afternoon.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 66. North northwest wind 5 to 10 mph becoming east southeast after midnight.

    Low: 66 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 85. East wind 6 to 8 mph becoming north northwest in the afternoon.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 84. Northwest wind 6 to 9 mph.
Tonight
Clear, with a low around 66. North wind 5 to 8 mph becoming light and variable.
Thursday
Sunny, with a high near 85. East northeast wind 5 to 8 mph becoming north northwest in the afternoon.
Thursday Night
Clear, with a low around 66. North northwest wind 5 to 10 mph becoming east southeast after midnight.
Friday
Sunny, with a high near 85. East wind 6 to 8 mph becoming north northwest in the afternoon.
Friday Night
Mostly clear, with a low around 63.
Saturday
Partly sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 56.
Monday
Mostly sunny, with a high near 72.
Monday Night
Mostly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Milpitas CA
 37.49°N 121.88°W (Elev. 1801 ft)
Last Update:
1:59 am PDT Mar 18, 2026
Forecast Valid:
11am PDT Mar 18, 2026-6pm PDT Mar 24, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation