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

Ontario International Airport (KONT)

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

Mostly Cloudy

81°F

27°C

Humidity 42%
Wind Speed W 11 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 10 Oct 06:35 PM PDT
Extended Forecast for

Ontario International Arpt CA

  • Tonight

    Tonight: Clear, with a low around 62. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 82. Light west wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 56. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 56 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 82. Light and variable wind becoming west 5 to 10 mph in the morning.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 55. West wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.

    Low: 55 °F

    Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers, mainly after 11am. Mostly sunny, with a high near 69.

    High: 69 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 62. West wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 82. Light west wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
Clear, with a low around 56. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 82. Light and variable wind becoming west 5 to 10 mph in the morning.
Sunday Night
Clear, with a low around 55. West wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Columbus Day
Sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 54.
Tuesday
A chance of showers, mainly after 11am. Mostly sunny, with a high near 69.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 53.
Wednesday
A slight chance of showers before 11am. Sunny, with a high near 68.
Wednesday Night
Clear, with a low around 51.
Thursday
Sunny, with a high near 70.
Thursday Night
Clear, with a low around 51.
Friday
Sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario International Arpt CA
 34.06°N 117.58°W (Elev. 906 ft)
Last Update:
1:04 pm PDT Oct 10, 2025
Forecast Valid:
6pm PDT Oct 10, 2025-6pm PDT Oct 17, 2025
 
Forecast Discussion
 
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Additional Resources

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