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.

haze

70°F

21°C

Humidity 73%
Wind Speed SE 3 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 61°F (16°C)
Visibility 4.00 mi
Last update 18 Aug 08:20 AM PDT
Extended Forecast for

2 Miles SSE Ontario CA

Extreme Heat Watch August 21, 10:00am until August 22, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Today

    Today: Sunny, with a high near 92. Light west wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 92 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. West wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 93 °F

    Sunny

  • Tuesday Night

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

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Light west wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 67.

    Low: 67 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 98.

    High: 98 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 99.

    High: 99 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 92. Light west wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 63. West wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 93. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 64. West wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 96. Light west wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Clear, with a low around 67.
Thursday
Sunny, with a high near 98.
Thursday Night
Mostly clear, with a low around 72.
Friday
Sunny, with a high near 99.
Friday Night
Mostly clear, with a low around 72.
Saturday
Sunny, with a high near 97.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Ontario CA
 34.03°N 117.58°W (Elev. 853 ft)
Last Update:
2:04 am PDT Aug 18, 2025
Forecast Valid:
8am PDT Aug 18, 2025-6pm PDT Aug 24, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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