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

Hazardous Weather Conditions

Current conditions at

Ontario International Airport (KONT)

Lat: 34.05316°NLon: 117.57685°WElev: 906.0ft.

Clear

72°F

22°C

Humidity 68%
Wind Speed N 0 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 01 Aug 05:15 AM PDT
Extended Forecast for

3 Miles SE Ontario International Arpt CA

Extreme Heat Warning August 1, 05:32am until August 2, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 1, 05:32am until August 2, 08:00pm

    NOW until 8:00pm Sun

    Extreme Heat Warning

  • Today

    High: 101 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 70. West wind 5 to 10 mph becoming light and variable after midnight.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 101. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 101 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 70. Southwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 20 mph.

    Low: 70 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 97. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 97 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 68.

    Low: 68 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 97.

    High: 97 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 68.

    Low: 68 °F

    Clear

Detailed Forecast

Today
Sunny, with a high near 101. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 70. West wind 5 to 10 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 101. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Clear, with a low around 70. Southwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 20 mph.
Monday
Sunny, with a high near 97. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Clear, with a low around 68.
Tuesday
Sunny, with a high near 97.
Tuesday Night
Clear, with a low around 68.
Wednesday
Sunny, with a high near 97.
Wednesday Night
Clear, with a low around 68.
Thursday
Sunny, with a high near 97.
Thursday Night
Mostly clear, with a low around 69.
Friday
Sunny, with a high near 96.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Ontario International Arpt CA
 34.04°N 117.55°W (Elev. 853 ft)
Last Update:
1:18 am PDT Aug 1, 2026
Forecast Valid:
5am PDT Aug 1, 2026-6pm PDT Aug 7, 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