Current conditions at

Ontario International Airport (KONT)

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

Clear

54°F

12°C

Humidity 40%
Wind Speed NNW 3 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 30 Dec 01:20 AM PST
Extended Forecast for

Ontario CA

Wind Advisory December 30, 01:35am until December 30, 01:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory December 30, 01:35am until December 30, 01:00pm

    NOW until 1:00pm Tue

    Wind Advisory

  • Overnight

    Low: 49 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 73. East wind 5 to 10 mph.

    High: 73 °F

    Partly Sunny

  • 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 70%. 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 55. East wind 5 to 10 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 64. Chance of precipitation is 100%.

    High: 64 °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 64.

    High: 64 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 49. East wind around 5 mph.
Tuesday
Partly sunny, with a high near 73. East 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 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers. The rain could be heavy at times. Low around 55. East wind 5 to 10 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 64. Chance of precipitation is 100%.
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 64.
Friday Night
Showers likely, mainly after 4am. Mostly cloudy, with a low around 53.
Saturday
Showers likely, mainly before 10am. Mostly cloudy, with a high near 65.
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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ABOUT THIS FORECAST

 
Point Forecast:
Ontario CA
 34.03°N 117.61°W (Elev. 823 ft)
12:37 am PST Dec 30, 2025
1am PST Dec 30, 2025-6pm PST Jan 5, 2026
 
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Additional Resources

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Hourly Weather Forecast

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