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

86°F

30°C

Humidity 48%
Wind Speed WSW 5 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 28 Aug 10:00 PM PDT
Extended Forecast for

2 Miles WNW Ontario CA

Extreme Heat Warning August 28, 10:16pm until August 29, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 28, 10:16pm until August 29, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • Tonight

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 98. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 98 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 69. West wind 5 to 10 mph.

    Low: 69 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 94. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 66. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Monday Night

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

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 74. West wind around 5 mph becoming calm.
Saturday
Sunny, with a high near 98. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Clear, with a low around 69. West wind 5 to 10 mph.
Sunday
Sunny, with a high near 94. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Clear, with a low around 66. West wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Mostly sunny, with a high near 89.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 65.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 92.
Thursday Night
Partly cloudy, with a low around 68.
Friday
Sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Ontario CA
 34.07°N 117.64°W (Elev. 1060 ft)
Last Update:
9:16 pm PDT Aug 28, 2026
Forecast Valid:
10pm PDT Aug 28, 2026-6pm PDT Sep 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation