Current conditions at

Ontario International Airport (KONT)

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

Mist

68°F

20°C

Humidity 89%
Wind Speed WSW 3 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 65°F (18°C)
Visibility 3.00 mi
Last update 14 Sep 07:53 AM PDT
Extended Forecast for

3 Miles SSE Rancho Cucamonga CA

  • Today

    Today: 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

  • Tonight

    Tonight: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 63. West wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 63 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am.  Otherwise, sunny, with a high near 85. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 85 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. Southwest wind 5 to 10 mph.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 83 °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 84.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Today
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.
Tonight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 63. West wind 5 to 10 mph becoming light and variable after midnight.
Tuesday
Patchy fog before 8am. Otherwise, sunny, with a high near 85. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 61. Southwest wind 5 to 10 mph.
Wednesday
Sunny, with a high near 83. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 84.
Thursday Night
Clear, with a low around 61.
Friday
Sunny, with a high near 87.
Friday Night
Clear, with a low around 62.
Saturday
Sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Rancho Cucamonga CA
 34.09°N 117.53°W (Elev. 1106 ft)
1:34 am PDT Sep 14, 2026
8am PDT Sep 14, 2026-6pm PDT Sep 20, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database