Current conditions at

Ontario International Airport (KONT)

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

Mostly Cloudy

82°F

28°C

Humidity 56%
Wind Speed SSE 5 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 26 Jul 08:53 AM PDT
Extended Forecast for

2 Miles SSW Rancho Cucamonga CA

Extreme Heat Warning July 26, 09:08am until July 27, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 26, 09:08am until July 27, 08:00pm

    NOW until 8:00pm Mon

    Extreme Heat Warning

  • Today

    High: 96 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 70. West wind 5 to 10 mph becoming light southwest  after midnight.

    Low: 70 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 97. Light south wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 97 °F

    Sunny

  • Monday Night

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

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 97. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 97 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Today
A slight chance of showers before 11am. Mostly sunny, with a high near 96. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 70. West wind 5 to 10 mph becoming light southwest after midnight.
Monday
Sunny, with a high near 97. Light south wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 69. Southwest wind 5 to 10 mph becoming light in the evening.
Tuesday
Sunny, with a high near 97. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Sunny, with a high near 96.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Sunny, with a high near 98.
Thursday Night
Mostly clear, with a low around 69.
Friday
Sunny, with a high near 100.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny, with a high near 101.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Rancho Cucamonga CA
 34.1°N 117.59°W (Elev. 1224 ft)
5:25 am PDT Jul 26, 2026
9am PDT Jul 26, 2026-6pm PDT Aug 1, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database