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.

Mostly Cloudy

50°F

10°C

Humidity 96%
Wind Speed N 0 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 49°F (9°C)
Visibility 7.00 mi
Last update 15 Feb 06:53 AM PST
Extended Forecast for

Ontario CA

Wind Advisory February 16, 07:00am until February 16, 08:00pm
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: Mostly cloudy, with a high near 64. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 64 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of rain after 4am. Mostly cloudy, with a low around 47. West wind around 5 mph becoming calm. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Mostly Cloudy
    then Chance
    Rain

  • Washington's Birthday

    Washington's Birthday: Rain, mainly after 10am. High near 58. East wind 5 to 10 mph becoming south 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 58 °F

    Rain

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 47. South wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, mainly before 10am. Mostly cloudy, with a high near 58. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers, mainly after 10pm. Low around 47. Breezy. Chance of precipitation is 90%.

    Low: 47 °F

    Showers and
    Breezy

  • Wednesday

    Wednesday: Showers, mainly before 10am. High near 58. Chance of precipitation is 80%.

    High: 58 °F

    Showers then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers, mainly before 10pm. Partly cloudy, with a low around 41.

    Low: 41 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, mainly after 10am. Mostly sunny, with a high near 58.

    High: 58 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly cloudy, with a high near 64. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
A chance of rain after 4am. Mostly cloudy, with a low around 47. West wind around 5 mph becoming calm. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Washington's Birthday
Rain, mainly after 10am. High near 58. East wind 5 to 10 mph becoming south 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Low around 47. South wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers likely, mainly before 10am. Mostly cloudy, with a high near 58. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Showers, mainly after 10pm. Low around 47. Breezy. Chance of precipitation is 90%.
Wednesday
Showers, mainly before 10am. High near 58. Chance of precipitation is 80%.
Wednesday Night
A chance of showers, mainly before 10pm. Partly cloudy, with a low around 41.
Thursday
A chance of showers, mainly after 10am. Mostly sunny, with a high near 58.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 40.
Friday
Mostly sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario CA
 34.03°N 117.61°W (Elev. 823 ft)
Last Update:
1:17 am PST Feb 15, 2026
Forecast Valid:
7am PST Feb 15, 2026-6pm PST Feb 21, 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