National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Fontana-Arrow Highway (CQ057)

Lat: 34.10056°NLon: 117.49222°WElev: 1191.0ft.

NA

76°F

24°C

Humidity 17%
Wind Speed NE 11 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Heat Index76°F (24°C)
Last update 15 Oct 08:00 AM PDT
Extended Forecast for

Rancho Cucamonga CA

High Wind Warning until October 17, 08:00pm
Click here for hazard details and duration
High Wind Warning
  •  
    High Wind Warning until October 17, 08:00pm

    NOW until 8:00pm Sat

    High Wind Warning

  • Today

    High: 83 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Clear, with a low around 66. Windy, with a north wind 30 to 35 mph, with gusts as high as 55 mph.

    Low: 66 °F

    Clear and
    Windy

  • Friday

    Friday: Sunny, with a high near 86. Windy, with a north wind 30 to 35 mph, with gusts as high as 50 mph.

    High: 86 °F

    Sunny and
    Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 66. Breezy, with a north wind 20 to 25 mph becoming light after midnight. Winds could gust as high as 40 mph.

    Low: 66 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 84. Northeast wind 5 to 10 mph becoming light and variable in the afternoon.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

Detailed Forecast

Today
Sunny, with a high near 83. Breezy, with a north wind 20 to 25 mph, with gusts as high as 40 mph.
Tonight
Clear, with a low around 66. Windy, with a north wind 30 to 35 mph, with gusts as high as 55 mph.
Friday
Sunny, with a high near 86. Windy, with a north wind 30 to 35 mph, with gusts as high as 50 mph.
Friday Night
Mostly clear, with a low around 66. Breezy, with a north wind 20 to 25 mph becoming light after midnight. Winds could gust as high as 40 mph.
Saturday
Sunny, with a high near 84. Northeast wind 5 to 10 mph becoming light and variable in the afternoon.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 82.
Sunday Night
Clear, with a low around 62.
Monday
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 59.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 73.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 56.
Wednesday
A chance of showers. Partly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rancho Cucamonga CA
 34.13°N 117.57°W (Elev. 1362 ft)
Last Update:
2:15 am PDT Oct 15, 2026
Forecast Valid:
9am PDT Oct 15, 2026-6pm PDT Oct 21, 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