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

55°F

13°C

Humidity 36%
Wind Speed WSW 4 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 30 Dec 06:53 AM PST
Extended Forecast for

Ontario CA

Wind Advisory December 30, 07:09am until December 30, 01:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory December 30, 07:09am until December 30, 01:00pm

    NOW until 1:00pm Tue

    Wind Advisory

  • Today

    High: 72 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers after 4am. Mostly cloudy, with a low around 55. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly after 10am. Mostly cloudy, with a high near 66. East wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 66 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers. The rain could be heavy at times. Low around 55. East wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 55 °F

    Heavy Rain

  • New Year's Day

    New Year's Day: Showers. The rain could be heavy at times. High near 63. Southeast wind around 5 mph becoming south in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 63 °F

    Heavy Rain

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.

    Low: 53 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers. Mostly cloudy, with a high near 63. Chance of precipitation is 40%.

    High: 63 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly after 10pm. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Showers
    Likely

Detailed Forecast

Today
Partly sunny, with a high near 72. East wind 5 to 10 mph.
Tonight
A chance of showers after 4am. Mostly cloudy, with a low around 55. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers likely, mainly after 10am. Mostly cloudy, with a high near 66. East wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Showers. The rain could be heavy at times. Low around 55. East wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
New Year's Day
Showers. The rain could be heavy at times. High near 63. Southeast wind around 5 mph becoming south in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.
Friday
A chance of showers. Mostly cloudy, with a high near 63. Chance of precipitation is 40%.
Friday Night
Showers likely, mainly after 10pm. Mostly cloudy, with a low around 53.
Saturday
Showers likely, mainly before 10am. Mostly cloudy, with a high near 64.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 50.
Sunday
A chance of showers. Partly sunny, with a high near 64.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 47.
Monday
A slight chance of showers. Partly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ontario CA
 34.05°N 117.64°W (Elev. 919 ft)
Last Update:
12:37 am PST Dec 30, 2025
Forecast Valid:
7am PST Dec 30, 2025-6pm PST Jan 5, 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