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.

Clear

75°F

24°C

Humidity 33%
Wind Speed WSW 10 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 15 Apr 01:35 PM PDT
Extended Forecast for

Ontario International Arpt CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 76. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 20 mph.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 74. Light west wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 74 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. Southwest wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 20 mph.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78. North wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 78 °F

    Sunny

  • Friday Night

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

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 76. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 53. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 20 mph.
Thursday
Partly sunny, with a high near 74. Light west wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 51. Southwest wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 20 mph.
Friday
Sunny, with a high near 78. North wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Mostly clear, with a low around 52.
Saturday
Sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ontario International Arpt CA
 34.06°N 117.58°W (Elev. 906 ft)
Last Update:
1:22 pm PDT Apr 15, 2026
Forecast Valid:
1pm PDT Apr 15, 2026-6pm PDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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