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Impacts from Rachel

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Current conditions at

Ontario International Airport (KONT)

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

Mostly Cloudy

72°F

22°C

Humidity 68%
Wind Speed S 4 MPH
Barometer 29.68 in (1005.08 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 10 Oct 07:35 AM PDT
Extended Forecast for

Rancho Cucamonga CA

  • Today

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

    High: 84 °F

    Mostly Cloudy

  • Tonight

    Tonight: Showers likely, mainly after 11pm. Cloudy, with a low around 63. West wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely. The rain could be heavy at times. Cloudy, with a high near 71. Northwest wind 5 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 71 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers. Low around 54. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Showers

  • Columbus Day

    Columbus Day: Showers. High near 63. Calm wind becoming southwest around 5 mph in the morning. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F

    Showers

  • Monday Night

    Monday Night: Showers likely, mainly before 11pm. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.

    Low: 49 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 84. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tonight
Showers likely, mainly after 11pm. Cloudy, with a low around 63. West wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Showers likely. The rain could be heavy at times. Cloudy, with a high near 71. Northwest wind 5 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Showers. Low around 54. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Columbus Day
Showers. High near 63. Calm wind becoming southwest around 5 mph in the morning. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Showers likely, mainly before 11pm. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Clear, with a low around 55.
Thursday
Sunny, with a high near 82.
Thursday Night
Clear, with a low around 60.
Friday
Sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rancho Cucamonga CA
 34.1°N 117.57°W (Elev. 1198 ft)
Last Update:
2:45 am PDT Oct 10, 2026
Forecast Valid:
7am PDT Oct 10, 2026-6pm PDT Oct 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation