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Hazardous Weather Conditions

Current conditions at

Ontario International Airport (KONT)

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

Clear

100°F

38°C

Humidity 21%
Wind Speed WSW 14 MPH
Barometer 29.83 in (1010.16 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 19 Aug 04:35 PM PDT
Extended Forecast for

5 Miles ESE Ontario International Arpt CA

Heat Advisory until August 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 20, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • This Afternoon

    High: 102 °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

  • Thursday

    Thursday: Sunny, with a high near 100. Light southwest wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 100 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 70. West wind 5 to 10 mph becoming light southwest in the evening.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 99. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 99 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 100.

    High: 100 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 102. West wind around 15 mph, with gusts 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.
Thursday
Sunny, with a high near 100. Light southwest wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 70. West wind 5 to 10 mph becoming light southwest in the evening.
Friday
Sunny, with a high near 99. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 69.
Saturday
Sunny, with a high near 100.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny, with a high near 99.
Sunday Night
Mostly clear, with a low around 70.
Monday
Sunny, with a high near 99.
Monday Night
Mostly clear, with a low around 70.
Tuesday
Sunny, with a high near 100.
Tuesday Night
Mostly clear, with a low around 72.
Wednesday
Sunny, with a high near 100.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Ontario International Arpt CA
 34.02°N 117.52°W (Elev. 797 ft)
Last Update:
2:47 pm PDT Aug 19, 2026
Forecast Valid:
4pm PDT Aug 19, 2026-6pm PDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation