Current conditions at

Ontario International Airport (KONT)

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

Clear

55°F

13°C

Humidity 71%
Wind Speed N 0 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 25 Feb 03:35 AM PST
Extended Forecast for

Ontario International Arpt CA

  • Overnight

    Overnight: Partly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. West wind around 5 mph becoming calm  in the evening.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. Southwest wind around 5 mph becoming calm.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 54. Calm wind.
Wednesday
Mostly sunny, with a high near 80. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 56. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 59. Southwest wind around 5 mph becoming calm.
Friday
Sunny, with a high near 90.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario International Arpt CA
 34.06°N 117.58°W (Elev. 906 ft)
12:40 am PST Feb 25, 2026
3am PST Feb 25, 2026-6pm PST Mar 3, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database