Current conditions at

Ontario International Airport (KONT)

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

Rain

57°F

14°C

Humidity 100%
Wind Speed W 4 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 57°F (14°C)
Visibility 9.00 mi
Last update 24 Dec 09:05 PM PST
Extended Forecast for

Ontario CA

Flood Watch December 24, 09:30pm until December 25, 06:00am
Wind Advisory December 24, 09:30pm until December 24, 10:00pm
Click here for hazard details and duration
Flood Watch
...
  •  
    Flood Watch December 24, 09:30pm until December 25, 06:00am
    Wind Advisory December 24, 09:30pm until December 24, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 55 °F

    Rain then
    Chance
    Showers

  • Christmas Day

    Christmas Day: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 4pm, then showers likely and possibly a thunderstorm after 4pm.  Cloudy, with a high near 63. Light and variable wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 63 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers.  Low around 53. Light west wind becoming southwest 5 to 10 mph after midnight.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Showers

  • Friday

    Friday: Showers.  High near 59. South wind 5 to 10 mph becoming east in the morning.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 59 °F

    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before 10pm.  Mostly cloudy, with a low around 47. Northeast wind 5 to 10 mph becoming light and variable.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers.  Mostly sunny, with a high near 60. Chance of precipitation is 20%.

    High: 60 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

Tonight
Rain before 10pm, then a chance of showers after 10pm. Low around 55. West wind around 5 mph becoming calm after midnight. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Christmas Day
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 4pm, then showers likely and possibly a thunderstorm after 4pm. Cloudy, with a high near 63. Light and variable wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers. Low around 53. Light west wind becoming southwest 5 to 10 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Showers. High near 59. South wind 5 to 10 mph becoming east in the morning. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Showers likely, mainly before 10pm. Mostly cloudy, with a low around 47. Northeast wind 5 to 10 mph becoming light and variable. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A slight chance of showers. Mostly sunny, with a high near 60. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 44.
Sunday
Sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 46.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 49.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 71.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 51.
Wednesday
A chance of showers. Mostly cloudy, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario CA
 34.05°N 117.64°W (Elev. 919 ft)
12:42 pm PST Dec 24, 2025
9pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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