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.

Clear

64°F

18°C

Humidity 15%
Wind Speed NE 25 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 29 Dec 08:20 AM PST
Extended Forecast for

Ontario CA

Wind Advisory December 29, 08:32am until December 30, 01:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory December 29, 08:32am until December 30, 01:00pm

    NOW until 1:00pm Tue

    Wind Advisory

  • Today

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 49. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 49 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 71. Northeast wind 5 to 10 mph.

    High: 71 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of showers after 4am. Mostly cloudy, with a low around 55. Northeast wind around 5 mph. Chance of precipitation is 30%.

    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 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 66 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers. The rain could be heavy at times. Low around 54. Chance of precipitation is 90%.

    Low: 54 °F

    Heavy Rain

  • New Year's Day

    New Year's Day: Showers. The rain could be heavy at times. High near 63. Chance of precipitation is 90%.

    High: 63 °F

    Heavy Rain

  • Thursday Night

    Thursday Night: Showers likely, mainly before 4am. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 68. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 49. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 71. Northeast wind 5 to 10 mph.
Tuesday Night
A chance of showers after 4am. Mostly cloudy, with a low around 55. Northeast wind around 5 mph. Chance of precipitation is 30%.
Wednesday
Showers likely, mainly after 10am. Mostly cloudy, with a high near 66. East wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers. The rain could be heavy at times. Low around 54. Chance of precipitation is 90%.
New Year's Day
Showers. The rain could be heavy at times. High near 63. Chance of precipitation is 90%.
Thursday Night
Showers likely, mainly before 4am. Mostly cloudy, with a low around 55.
Friday
Showers likely, mainly after 10am. Mostly cloudy, with a high near 64.
Friday Night
Showers likely. Mostly cloudy, with a low around 53.
Saturday
Showers likely. Mostly cloudy, with a high near 63.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 50.
Sunday
A chance of showers. Partly sunny, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ontario CA
 34.05°N 117.64°W (Elev. 919 ft)
Last Update:
12:13 am PST Dec 29, 2025
Forecast Valid:
8am PST Dec 29, 2025-6pm PST Jan 4, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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