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

52°F

11°C

Humidity 81%
Wind Speed N 0 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 16 Feb 03:00 AM PST
Extended Forecast for

Ontario CA

Wind Advisory February 16, 07:00am until February 16, 08:00pm
Wind Advisory February 17, 08:00pm until February 18, 08:00am
Click here for hazard details and duration
Wind Advisory
Wind Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 48. East wind around 5 mph.

    Low: 48 °F

    Mostly Cloudy

  • Washington's Birthday

    Washington's Birthday: Showers, mainly after 7am. The rain could be heavy at times. High near 56. Breezy, with an east wind 5 to 10 mph becoming southwest 15 to 25 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 56 °F

    Heavy Rain
    and Breezy

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm, mainly before 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could produce heavy rainfall. Low around 46. West wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 46 °F

    Heavy Rain

  • Tuesday

    Tuesday: A chance of showers before 7am, then showers likely after 10am. Cloudy, with a high near 57. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers. The rain could be heavy at times. Low around 47. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Heavy Rain
    and Breezy

  • Wednesday

    Wednesday: Showers likely, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 57. Chance of precipitation is 70%.

    High: 57 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 20%.

    Low: 40 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Partly sunny, with a high near 55.

    High: 55 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 4am. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 48. East wind around 5 mph.
Washington's Birthday
Showers, mainly after 7am. The rain could be heavy at times. High near 56. Breezy, with an east wind 5 to 10 mph becoming southwest 15 to 25 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Monday Night
Showers and possibly a thunderstorm, mainly before 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could produce heavy rainfall. Low around 46. West wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
A chance of showers before 7am, then showers likely after 10am. Cloudy, with a high near 57. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Showers. The rain could be heavy at times. Low around 47. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Showers likely, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 57. Chance of precipitation is 70%.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 20%.
Thursday
A chance of showers. Partly sunny, with a high near 55.
Thursday Night
A chance of showers before 4am. Mostly cloudy, with a low around 41.
Friday
A slight chance of showers after 10am. Mostly sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 41.
Saturday
Sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Mostly sunny, with a high near 70.
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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:
3:04 am PST Feb 16, 2026
Forecast Valid:
3am PST Feb 16, 2026-6pm PST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation