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

95°F

35°C

Humidity 18%
Wind Speed SSW 3 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 19 Mar 01:53 PM PDT
Extended Forecast for

3 Miles ESE Ontario International Arpt CA

Heat Advisory March 19, 02:15pm until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 19, 02:15pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 100 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 66. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 66 °F

    Clear

  • Friday

    Friday: 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 20 mph.

    High: 99 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 64. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 64 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 92. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 92 °F

    Sunny

  • Saturday Night

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

    Low: 61 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 100. West wind 5 to 10 mph.
Tonight
Clear, with a low around 66. West wind 5 to 10 mph becoming light and variable in the evening.
Friday
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 20 mph.
Friday Night
Clear, with a low around 64. West wind 5 to 10 mph becoming light and variable in the evening.
Saturday
Sunny, with a high near 92. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
Mostly sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 62.
Monday
Sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 62.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Clear, with a low around 63.
Wednesday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Ontario International Arpt CA
 34.04°N 117.55°W (Elev. 853 ft)
Last Update:
11:14 am PDT Mar 19, 2026
Forecast Valid:
2pm PDT Mar 19, 2026-6pm PDT Mar 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation