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Hazardous Weather Conditions

Current conditions at

Ontario International Airport (KONT)

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

Overcast

48°F

9°C

Humidity 87%
Wind Speed E 3 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 17 Feb 07:00 AM PST
Extended Forecast for

Ontario International Arpt CA

Wind Advisory February 17, 08:00pm until February 18, 08:00am
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: A chance of showers, mainly after 10am. Mostly cloudy, with a high near 55. South wind 5 to 10 mph becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers, mainly before 4am. The rain could be heavy at times. Low around 46. Breezy, with a south wind 15 to 20 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 46 °F

    Heavy Rain
    and Breezy

  • Wednesday

    Wednesday: A chance of showers before 10am. Mostly sunny, with a high near 54. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers. Partly cloudy, with a low around 44. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 44 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly after 10am. Partly sunny, with a high near 54. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers before 4am. Mostly cloudy, with a low around 42. Chance of precipitation is 50%.

    Low: 42 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers after 10am. Mostly sunny, with a high near 58. Chance of precipitation is 20%.

    High: 58 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of showers, mainly after 10am. Mostly cloudy, with a high near 55. South wind 5 to 10 mph becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers, mainly before 4am. The rain could be heavy at times. Low around 46. Breezy, with a south wind 15 to 20 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
A chance of showers before 10am. Mostly sunny, with a high near 54. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 44. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday
Showers likely, mainly after 10am. Partly sunny, with a high near 54. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A chance of showers before 4am. Mostly cloudy, with a low around 42. Chance of precipitation is 50%.
Friday
A slight chance of showers after 10am. Mostly sunny, with a high near 58. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 40.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 48.
Monday
A slight chance of showers. Partly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario International Arpt CA
 34.06°N 117.58°W (Elev. 906 ft)
Last Update:
2:12 am PST Feb 17, 2026
Forecast Valid:
7am PST Feb 17, 2026-6pm PST Feb 23, 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