Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

San Jose, San Jose International Airport (KSJC)

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

Mostly Cloudy

86°F

30°C

Humidity 40%
Wind Speed WNW 6 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 27 Aug 04:20 PM PDT
Extended Forecast for

3 Miles SE San Jose International Airport CA

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms.  Cloudy, with a steady temperature around 82. North northwest wind around 9 mph.

    High: 82 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 63. North northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 63 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms before 4pm, then a slight chance of showers.  Cloudy, then gradually becoming mostly sunny, with a high near 79. Light northwest wind becoming north northwest 6 to 11 mph in the morning.  Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58. North northwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 79. Calm wind becoming west northwest 5 to 9 mph in the afternoon.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog between 8am and 9am.  Otherwise, sunny, with a high near 78.

    High: 78 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Cloudy, with a steady temperature around 82. North northwest wind around 9 mph.
Tonight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. North northwest wind 5 to 7 mph becoming calm in the evening.
Friday
A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Cloudy, then gradually becoming mostly sunny, with a high near 79. Light northwest wind becoming north northwest 6 to 11 mph in the morning. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 58. North northwest wind 5 to 8 mph becoming calm in the evening.
Saturday
Sunny, with a high near 79. Calm wind becoming west northwest 5 to 9 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Patchy fog between 8am and 9am. Otherwise, sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 55.
Monday
Mostly sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Patchy fog. Otherwise, mostly sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Patchy fog. Otherwise, mostly sunny, with a high near 77.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 58.
Thursday
A slight chance of showers. Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE San Jose International Airport CA
 37.33°N 121.9°W (Elev. 82 ft)
1:42 pm PDT Aug 27, 2026
4pm PDT Aug 27, 2026-6pm PDT Sep 3, 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