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

64°F

18°C

Humidity 83%
Wind Speed SSW 4 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 59°F (15°C)
Visibility 7.00 mi
Last update 03 Aug 04:53 AM PDT
Extended Forecast for

2 Miles SW Rancho Cucamonga CA

  • Today

    Today: Sunny, with a high near 94. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 94 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 66. West wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 66. West wind 10 to 15 mph becoming light southwest after midnight. Winds could gust as high as 20 mph.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 97.

    High: 97 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 100.

    High: 100 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 94. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 66. West wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Monday
Sunny, with a high near 94. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 66. West wind 10 to 15 mph becoming light southwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 95. 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 67.
Wednesday
Sunny, with a high near 97.
Wednesday Night
Mostly clear, with a low around 69.
Thursday
Sunny, with a high near 100.
Thursday Night
Clear, with a low around 69.
Friday
Sunny, with a high near 96.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Rancho Cucamonga CA
 34.1°N 117.59°W (Elev. 1224 ft)
Last Update:
1:42 am PDT Aug 3, 2025
Forecast Valid:
5am PDT Aug 3, 2025-6pm PDT Aug 9, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation