Current conditions at

Ontario International Airport (KONT)

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

Overcast

63°F

17°C

Humidity 72%
Wind Speed SW 11 MPH
Barometer 29.75 in (1007.45 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 17 May 08:35 PM PDT
Extended Forecast for

3 Miles SSE Rancho Cucamonga CA

  • Tonight

    Tonight: Patchy fog between 11pm and 2am.  Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 55. Southwest wind 10 to 15 mph becoming light west. Winds could gust as high as 25 mph.

    Low: 55 °F

    Patchy Fog

  • Monday

    Monday: Sunny, with a high near 81. Northwest wind 5 to 10 mph.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. West wind 10 to 15 mph becoming light and variable  in the evening. Winds could gust as high as 25 mph.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. Light and variable wind becoming north 5 to 10 mph in the afternoon.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58. West wind 5 to 10 mph becoming light  in the evening. Winds could gust as high as 20 mph.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

Detailed Forecast

Tonight
Patchy fog between 11pm and 2am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 55. Southwest wind 10 to 15 mph becoming light west. Winds could gust as high as 25 mph.
Monday
Sunny, with a high near 81. Northwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 55. West wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 25 mph.
Tuesday
Sunny, with a high near 86. Light and variable wind becoming north 5 to 10 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 58. West wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Sunny, with a high near 87.
Thursday Night
Clear, with a low around 58.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 84.
Saturday Night
Clear, with a low around 58.
Sunday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Rancho Cucamonga CA
 34.09°N 117.53°W (Elev. 1106 ft)
12:04 pm PDT May 17, 2026
8pm PDT May 17, 2026-6pm PDT May 24, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database