Current conditions at

Ontario International Airport (KONT)

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

Clear

64°F

18°C

Humidity 67%
Wind Speed W 6 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 20 Jun 10:20 PM PDT
Extended Forecast for

Ontario International Arpt CA

  • Tonight

    Tonight: Mostly clear, with a low around 57. West wind around 5 mph becoming calm  after midnight.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog before 11am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 81. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. Southwest wind 5 to 10 mph becoming light  after midnight.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 86. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61. Southwest wind 5 to 10 mph becoming light west  after midnight. Winds could gust as high as 20 mph.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 57. West wind around 5 mph becoming calm after midnight.
Sunday
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 81. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 58. Southwest wind 5 to 10 mph becoming light after midnight.
Monday
Sunny, with a high near 86. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 61. Southwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 88.
Friday Night
Clear, with a low around 60.
Saturday
Sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario International Arpt CA
 34.07°N 117.62°W (Elev. 1017 ft)
12:01 pm PDT Jun 20, 2026
10pm PDT Jun 20, 2026-6pm PDT Jun 27, 2026
 
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Additional Resources

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