Current conditions at

Ontario International Airport (KONT)

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

Clear

54°F

12°C

Humidity 37%
Wind Speed WSW 3 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 20 Feb 06:05 PM PST
Extended Forecast for

Ontario CA

  • Tonight

    Tonight: Clear, with a low around 38. West wind around 5 mph becoming calm  in the evening.

    Low: 38 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 68. Calm wind becoming east around 5 mph in the afternoon.

    High: 68 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45. Calm wind becoming northeast around 5 mph.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 75. Northeast wind around 5 mph becoming calm.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 49. Northeast wind around 5 mph.

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 38. West wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 68. Calm wind becoming east around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 45. Calm wind becoming northeast around 5 mph.
Sunday
Sunny, with a high near 75. Northeast wind around 5 mph becoming calm.
Sunday Night
Mostly clear, with a low around 49. Northeast wind around 5 mph.
Monday
Mostly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Mostly sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario CA
 34.03°N 117.61°W (Elev. 823 ft)
12:35 pm PST Feb 20, 2026
6pm PST Feb 20, 2026-6pm PST Feb 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database