National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Ontario International Airport (KONT)

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

Overcast

57°F

14°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 17 Nov 09:05 AM PST
Extended Forecast for

2 Miles W Rancho Cucamonga CA

  • Today

    Today: Showers, mainly after 4pm. The rain could be heavy at times. High near 61. East wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 61 °F

    Chance
    Showers then
    Heavy Rain

  • Tonight

    Tonight: Showers, mainly before 4am. The rain could be heavy at times. Low around 44. West wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Heavy Rain
    then Showers
    Likely

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 56. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 10pm. Partly cloudy, with a low around 43. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 43 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 58. Calm wind becoming west around 5 mph in the afternoon.

    High: 58 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers after 10am. Partly sunny, with a high near 58. Chance of precipitation is 20%.

    High: 58 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, mainly before 4pm. Partly sunny, with a high near 60.

    High: 60 °F

    Chance
    Showers

Detailed Forecast

Today
Showers, mainly after 4pm. The rain could be heavy at times. High near 61. East wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Showers, mainly before 4am. The rain could be heavy at times. Low around 44. West wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 56. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A slight chance of showers before 10pm. Partly cloudy, with a low around 43. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 58. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
A slight chance of showers after 10am. Partly sunny, with a high near 58. Chance of precipitation is 20%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 46.
Friday
A chance of showers, mainly before 4pm. Partly sunny, with a high near 60.
Friday Night
A slight chance of showers before 10pm. Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 66.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Rancho Cucamonga CA
 34.12°N 117.6°W (Elev. 1368 ft)
Last Update:
1:24 am PST Nov 17, 2025
Forecast Valid:
9am PST Nov 17, 2025-6pm PST Nov 23, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation