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

Hazardous Weather Conditions

Current conditions at

San Bernardino Intl. Airport (KSBD)

Lat: 34.09027°NLon: 117.24705°WElev: 1086.0ft.

Clear

90°F

32°C

Humidity 29%
Wind Speed N 0 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 29 Aug 09:55 AM PDT
Extended Forecast for

3 Miles SE Rialto CA

Extreme Heat Warning August 29, 10:16am until August 29, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 29, 10:16am until August 29, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • Today

    High: 100 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 72. South wind 5 to 10 mph becoming light and variable in the evening.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 97. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 97 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 67. Southwest wind 5 to 10 mph.

    Low: 67 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 92. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 92 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers after 11pm. Partly cloudy, with a low around 65.

    Low: 65 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 100. Light southwest wind increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 72. South wind 5 to 10 mph becoming light and variable in the evening.
Sunday
Sunny, with a high near 97. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Clear, with a low around 67. Southwest wind 5 to 10 mph.
Monday
Sunny, with a high near 92. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Mostly sunny, with a high near 91.
Tuesday Night
A slight chance of showers after 11pm. Partly cloudy, with a low around 65.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 90.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 94.
Thursday Night
Partly cloudy, with a low around 69.
Friday
Sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Rialto CA
 34.09°N 117.34°W (Elev. 1175 ft)
Last Update:
12:13 am PDT Aug 29, 2026
Forecast Valid:
10am PDT Aug 29, 2026-6pm PDT Sep 4, 2026
 
Forecast Discussion
 
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Additional Resources

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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