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

88°F

31°C

Humidity 12%
Wind Speed WSW 14 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 14 Jul 02:00 PM PDT
Extended Forecast for

Ontario International Arpt CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 91. West wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, increasing clouds, with a low around 62. West wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 87. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 87 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. West wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 62.

    Low: 62 °F

    Patchy Fog

  • Friday

    Friday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 91. West wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Patchy fog after 2am. Otherwise, increasing clouds, with a low around 62. West wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 87. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 62. West wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 86. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 87.
Thursday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 62.
Friday
Sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 63.
Saturday
Sunny, with a high near 91.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario International Arpt CA
 34.06°N 117.58°W (Elev. 906 ft)
Last Update:
1:27 pm PDT Jul 14, 2025
Forecast Valid:
2pm PDT Jul 14, 2025-6pm PDT Jul 20, 2025
 
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