Current conditions at

Ontario International Airport (KONT)

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

Partly Cloudy

82°F

28°C

Humidity 45%
Wind Speed WSW 11 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 29 Sep 04:53 PM PDT
Extended Forecast for

Ontario CA

  • Tonight

    Tonight: Patchy drizzle after 11pm.  Patchy fog after 2am.  Otherwise, increasing clouds, with a low around 62. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Patchy
    Drizzle and
    Patchy Fog

  • Tuesday

    Tuesday: Patchy drizzle and fog before 11am.  Cloudy through mid morning, then gradual clearing, with a high near 79. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 79 °F

    Patchy
    Drizzle and
    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 58. West wind 5 to 10 mph becoming light southwest  after midnight.

    Low: 58 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 80. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 80 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. West wind 5 to 10 mph becoming light  after midnight.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy drizzle after 11pm. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 62. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Patchy drizzle and fog before 11am. Cloudy through mid morning, then gradual clearing, with a high near 79. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 58. West wind 5 to 10 mph becoming light southwest after midnight.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 80. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 59. West wind 5 to 10 mph becoming light after midnight.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 59.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 78.
Sunday Night
Increasing clouds, with a low around 58.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario CA
 34.05°N 117.61°W (Elev. 902 ft)
1:00 pm PDT Sep 29, 2025
5pm PDT Sep 29, 2025-6pm PDT Oct 6, 2025
 
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Additional Resources

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