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.

Overcast

73°F

23°C

Humidity 35%
Wind Speed W 9 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 16 Apr 03:05 PM PDT
Extended Forecast for

Ontario CA

Wind Advisory April 17, 05:00am until April 17, 05:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Partly cloudy, with a low around 53. Southwest wind 10 to 15 mph becoming light northwest after midnight. Winds could gust as high as 20 mph.

    Low: 53 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 55. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 55 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 83. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55. Southwest wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 82.

    High: 82 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 53. Southwest wind 10 to 15 mph becoming light northwest after midnight. Winds could gust as high as 20 mph.
Friday
Sunny, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Clear, with a low around 55. West wind 5 to 10 mph becoming light and variable in the evening.
Saturday
Sunny, with a high near 83. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 55. Southwest wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Sunday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ontario CA
 34.03°N 117.61°W (Elev. 823 ft)
Last Update:
11:48 am PDT Apr 16, 2026
Forecast Valid:
3pm PDT Apr 16, 2026-6pm PDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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