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Hazardous Weather Conditions

Current conditions at

Ontario International Airport (KONT)

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

Mostly Cloudy

89°F

32°C

Humidity 29%
Wind Speed WSW 6 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 21 Jul 12:53 PM PDT
Extended Forecast for

3 Miles SSE Rancho Cucamonga CA

Heat Advisory July 22, 10:00am until July 27, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • This Afternoon

    This Afternoon: Sunny, with a high near 92. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 92 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 67. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 67 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 69. Southwest wind 5 to 10 mph becoming light in the evening.

    Low: 69 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 101. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 101 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 72.

    Low: 72 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 101.

    High: 101 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 101.

    High: 101 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 92. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Clear, with a low around 67. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 96. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Clear, with a low around 69. Southwest wind 5 to 10 mph becoming light in the evening.
Thursday
Sunny, with a high near 101. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Clear, with a low around 72.
Friday
Sunny, with a high near 101.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny, with a high near 101.
Saturday Night
Clear, with a low around 71.
Sunday
Sunny, with a high near 100.
Sunday Night
Clear, with a low around 73.
Monday
Sunny, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Rancho Cucamonga CA
 34.09°N 117.53°W (Elev. 1106 ft)
Last Update:
12:11 pm PDT Jul 21, 2026
Forecast Valid:
1pm PDT Jul 21, 2026-6pm PDT Jul 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation