Current conditions at

Ontario International Airport (KONT)

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

haze

66°F

19°C

Humidity 68%
Wind Speed N 0 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 55°F (13°C)
Visibility 5.00 mi
Last update 22 Mar 09:00 AM PDT
Extended Forecast for

Ontario CA

  • Today

    Today: Mostly sunny, with a high near 87. Light west wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. West wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. West wind 5 to 10 mph becoming light  in the evening. Winds could gust as high as 20 mph.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 87. Light west wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 61. West wind 5 to 10 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 89. Light and variable 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 62. West wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 91. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Clear, with a low around 62.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 93.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Partly sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario CA
 34.05°N 117.64°W (Elev. 919 ft)
1:03 am PDT Mar 22, 2026
9am PDT Mar 22, 2026-6pm PDT Mar 28, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database