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

70°F

21°C

Humidity 68%
Wind Speed SW 11 MPH
Barometer 29.83 in (1010.16 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 06 Oct 07:20 PM PDT
Extended Forecast for

Rancho Cucamonga CA

  • Tonight

    Tonight: Mostly clear, with a low around 59. West wind 5 to 10 mph becoming light in the evening.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 85 °F

    Sunny

  • Tuesday Night

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

    Low: 59 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. Southwest wind around 5 mph becoming calm after midnight.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers. Partly cloudy, with a low around 62. Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    Showers

  • Friday

    Friday: A slight chance of showers. Mostly sunny, with a high near 83.

    High: 83 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 59. West wind 5 to 10 mph becoming light in the evening.
Tuesday
Sunny, with a high near 85. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Tuesday Night
Clear, with a low around 59. West wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 84. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 59. Southwest wind around 5 mph becoming calm after midnight.
Thursday
Sunny, with a high near 83.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 62. Chance of precipitation is 20%.
Friday
A slight chance of showers. Mostly sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 54.
Columbus Day
Sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rancho Cucamonga CA
 34.12°N 117.6°W (Elev. 1368 ft)
Last Update:
1:13 pm PDT Oct 6, 2025
Forecast Valid:
7pm PDT Oct 6, 2025-6pm PDT Oct 13, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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