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.

Partly Cloudy

86°F

30°C

Humidity 16%
Wind Speed N 4 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 18 Oct 03:53 PM PDT
Extended Forecast for

2 Miles SSW Rancho Cucamonga CA

  • Tonight

    Tonight: Clear, with a low around 61. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 61 °F

    Clear

  • Monday

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

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 61. Southwest wind 5 to 10 mph becoming light west in the evening.

    Low: 61 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 60. Southwest wind around 5 mph becoming calm after midnight.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain after 11am. Partly sunny, with a high near 73. Chance of precipitation is 50%.

    High: 73 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 57. Chance of precipitation is 90%.

    Low: 57 °F

    Showers

  • Thursday

    Thursday: Showers. Mostly cloudy, with a high near 67.

    High: 67 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 11pm. Partly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 61. West wind 5 to 10 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 84. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Monday Night
Clear, with a low around 61. Southwest wind 5 to 10 mph becoming light west in the evening.
Tuesday
Sunny, with a high near 82. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 60. Southwest wind around 5 mph becoming calm after midnight.
Wednesday
A chance of rain after 11am. Partly sunny, with a high near 73. Chance of precipitation is 50%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 57. Chance of precipitation is 90%.
Thursday
Showers. Mostly cloudy, with a high near 67.
Thursday Night
A chance of showers before 11pm. Partly cloudy, with a low around 53.
Friday
Sunny, with a high near 70.
Friday Night
Clear, with a low around 55.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Mostly sunny, with a high near 74.
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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:
1:11 pm PDT Oct 18, 2026
Forecast Valid:
4pm PDT Oct 18, 2026-6pm PDT Oct 25, 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