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

73°F

23°C

Humidity 49%
Wind Speed N 0 MPH
Barometer 29.83 in (1010.16 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 09 Oct 01:35 AM PDT
Extended Forecast for

3 Miles SSE Rancho Cucamonga CA

  • Overnight

    Overnight: Clear, with a low around 69. Calm wind.

    Low: 69 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 93. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 66. Southwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 66 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Cloudy, with a high near 83. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 83 °F

    Cloudy

  • Saturday Night

    Saturday Night: A chance of showers after 11pm. Mostly cloudy, with a low around 64. West wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 64 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 11am. The rain could be heavy at times. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.

    High: 76 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers, mainly after 11pm. Low around 54. Breezy. Chance of precipitation is 80%.

    Low: 54 °F

    Showers and
    Breezy

  • Columbus Day

    Columbus Day: Showers. Mostly cloudy, with a high near 65.

    High: 65 °F

    Showers

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

Detailed Forecast

Overnight
Clear, with a low around 69. Calm wind.
Friday
Sunny, with a high near 93. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Increasing clouds, with a low around 66. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Saturday
Cloudy, with a high near 83. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
A chance of showers after 11pm. Mostly cloudy, with a low around 64. West wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers likely, mainly after 11am. The rain could be heavy at times. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.
Sunday Night
Showers, mainly after 11pm. Low around 54. Breezy. Chance of precipitation is 80%.
Columbus Day
Showers. Mostly cloudy, with a high near 65.
Monday Night
A chance of showers. Mostly cloudy, with a low around 50.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Clear, with a low around 51.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Clear, with a low around 57.
Thursday
Sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Rancho Cucamonga CA
 34.09°N 117.53°W (Elev. 1106 ft)
Last Update:
12:22 am PDT Oct 9, 2026
Forecast Valid:
1am PDT Oct 9, 2026-6pm PDT Oct 15, 2026
 
Forecast Discussion
 
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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