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

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

San Jose, San Jose International Airport (KSJC)

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

Partly Cloudy

84°F

29°C

Humidity 37%
Wind Speed NNW 8 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 17 Mar 03:35 PM PDT
Extended Forecast for

San Jose International Airport CA

Heat Advisory March 17, 03:53pm until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 17, 03:53pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 58 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 62. Northwest wind around 6 mph becoming calm in the evening.

    Low: 62 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 92. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 64. North northwest wind 5 to 9 mph becoming calm in the evening.

    Low: 64 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

Tonight
Clear, with a low around 58. Northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 92. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 62. Northwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 92. Calm wind becoming north northwest around 6 mph in the afternoon.
Thursday Night
Clear, with a low around 64. North northwest wind 5 to 9 mph becoming calm in the evening.
Friday
Sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 53.
Monday
Mostly sunny, with a high near 76.
Monday Night
Mostly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Jose International Airport CA
 37.35°N 121.93°W (Elev. 66 ft)
Last Update:
1:49 pm PDT Mar 17, 2026
Forecast Valid:
3pm PDT Mar 17, 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