National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Ontario International Airport (KONT)

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

Clear

93°F

34°C

Humidity 31%
Wind Speed WSW 12 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 07 Jul 04:53 PM PDT
Extended Forecast for

2 Miles SW Rancho Cucamonga CA

Heat Advisory July 8, 10:00am until July 9, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 64. West wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 98. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 98 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66. Southwest 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

  • Thursday

    Thursday: Sunny, with a high near 99. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 99 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 64. West wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 98. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 66. Southwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 99. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph.
Thursday Night
Mostly clear, with a low around 65. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Friday
Sunny, with a high near 95.
Friday Night
Mostly clear, with a low around 64.
Saturday
Mostly sunny, with a high near 93.
Saturday Night
Partly cloudy, with a low around 65.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
Partly cloudy, with a low around 66.
Monday
A slight chance of showers. Mostly sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Rancho Cucamonga CA
 34.1°N 117.59°W (Elev. 1224 ft)
Last Update:
11:29 am PDT Jul 7, 2026
Forecast Valid:
5pm PDT Jul 7, 2026-6pm PDT Jul 14, 2026
 
Forecast Discussion
 
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