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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

San Jose / Reid / Hillv (KRHV)

Lat: 37.33333°NLon: 121.81667°WElev: 135.0ft.

Mostly Cloudy

72°F

22°C

Humidity 56%
Wind Speed NNW 9 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 28 Aug 01:47 PM PDT
Extended Forecast for

8 Miles SSE San Jose CA

Red Flag Warning August 28, 02:33pm until August 28, 03:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning August 28, 02:33pm until August 28, 03:00pm

    NOW until 3:00pm Fri

    Red Flag Warning

  • This Afternoon

    High: 80 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 54. West northwest wind 6 to 10 mph.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. Light west northwest wind becoming northwest 8 to 13 mph in the morning.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 52. North northwest wind 6 to 11 mph becoming light and variable.

    Low: 52 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 80. East southeast wind around 6 mph becoming calm in the morning.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80. Northwest wind 6 to 9 mph.
Tonight
Mostly clear, with a low around 54. West northwest wind 6 to 10 mph.
Saturday
Sunny, with a high near 80. Light west northwest wind becoming northwest 8 to 13 mph in the morning.
Saturday Night
Increasing clouds, with a low around 52. North northwest wind 6 to 11 mph becoming light and variable.
Sunday
Sunny, with a high near 80. East southeast wind around 6 mph becoming calm in the morning.
Sunday Night
Mostly clear, with a low around 53.
Monday
Mostly sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Mostly sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SSE San Jose CA
 37.21°N 121.78°W (Elev. 656 ft)
Last Update:
1:26 pm PDT Aug 28, 2026
Forecast Valid:
2pm PDT Aug 28, 2026-6pm PDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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