Hazardous Weather Conditions

Current conditions at

Ontario International Airport (KONT)

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

Clear

72°F

22°C

Humidity 31%
Wind Speed NW 3 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 12 Mar 10:53 PM PDT
Extended Forecast for

Ontario CA

Heat Advisory March 12, 11:12pm until March 13, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 12, 11:12pm until March 13, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 61 °F

    Clear

  • Friday

    Friday: Increasing clouds, with a high near 93. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 93 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 61. West wind 5 to 10 mph becoming light and variable  in the evening.

    Low: 61 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 88. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 88 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 58. West wind 5 to 10 mph becoming light and variable  in the evening.

    Low: 58 °F

    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 98.

    High: 98 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 61. Northeast wind around 5 mph becoming calm.
Friday
Increasing clouds, with a high near 93. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 61. West wind 5 to 10 mph becoming light and variable in the evening.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 88. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Clear, with a low around 58. West wind 5 to 10 mph becoming light and variable in the evening.
Sunday
Mostly sunny, with a high near 93.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Sunny, with a high near 98.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Sunny, with a high near 101.
Tuesday Night
Clear, with a low around 65.
Wednesday
Sunny, with a high near 99.
Wednesday Night
Clear, with a low around 64.
Thursday
Sunny, with a high near 100.
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario CA
 34.03°N 117.58°W (Elev. 853 ft)
12:13 pm PDT Mar 12, 2026
11pm PDT Mar 12, 2026-6pm PDT Mar 19, 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