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.

Clear

77°F

25°C

Humidity 31%
Wind Speed WSW 6 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 11 Nov 05:15 PM PST
Extended Forecast for

2 Miles SSW Rancho Cucamonga CA

  • Tonight

    Tonight: Clear, with a low around 59. West wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers after 10pm. Increasing clouds, with a low around 58. West wind around 5 mph becoming calm. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Chance
    Showers

  • Friday

    Friday: Showers likely, mainly after 4pm. Mostly cloudy, with a high near 69. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers, mainly before 4am. The rain could be heavy at times. Low around 56. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 56 °F

    Heavy Rain

  • Saturday

    Saturday: A chance of showers before 10am. Partly sunny, with a high near 67. Chance of precipitation is 40%.

    High: 67 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 4am. Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 59. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 80. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Thursday Night
A chance of showers after 10pm. Increasing clouds, with a low around 58. West wind around 5 mph becoming calm. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers likely, mainly after 4pm. Mostly cloudy, with a high near 69. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers, mainly before 4am. The rain could be heavy at times. Low around 56. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
A chance of showers before 10am. Partly sunny, with a high near 67. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Sunny, with a high near 68.
Sunday Night
A chance of showers after 4am. Partly cloudy, with a low around 53.
Monday
Showers likely, mainly after 10am. Partly sunny, with a high near 65.
Monday Night
Showers likely. Mostly cloudy, with a low around 50.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 64.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
A chance of showers. Sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Rancho Cucamonga CA
 34.1°N 117.59°W (Elev. 1224 ft)
Last Update:
12:06 pm PST Nov 11, 2026
Forecast Valid:
5pm PST Nov 11, 2026-6pm PST Nov 18, 2026
 
Forecast Discussion
 
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Additional Resources

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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