National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Ontario International Airport (KONT)

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

Clear

66°F

19°C

Humidity 37%
Wind Speed NNE 3 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 18 Oct 03:55 AM PDT
Extended Forecast for

5 Miles ESE Ontario International Arpt CA

  • Today

    Today: Sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 62. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 62 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 86. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61. Southwest wind 5 to 10 mph becoming light west in the evening.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 61.

    Low: 61 °F

    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 40%.

    High: 77 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm. Mostly cloudy, with a high near 69.

    High: 69 °F

    Showers

Detailed Forecast

Today
Sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Clear, with a low around 62. West wind 5 to 10 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 86. Light and variable 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 61. Southwest wind 5 to 10 mph becoming light west in the evening.
Tuesday
Sunny, with a high near 82. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tuesday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 61.
Wednesday
A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 40%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57.
Thursday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 69.
Thursday Night
A chance of showers before 11pm. Partly cloudy, with a low around 54.
Friday
Sunny, with a high near 71.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Ontario International Arpt CA
 34.02°N 117.52°W (Elev. 797 ft)
Last Update:
12:45 am PDT Oct 18, 2026
Forecast Valid:
4am PDT Oct 18, 2026-6pm PDT Oct 24, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation