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

Fontana-Arrow Highway (CQ057)

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

NA

71°F

22°C

Humidity 69%
Wind Speed WSW 4 MPH
Barometer NA
Dewpoint 60°F (16°C)
Visibility NA
Last update 19 Jun 10:00 PM PDT
Extended Forecast for

Rancho Cucamonga CA

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, increasing clouds, with a low around 60. Southwest wind around 5 mph becoming calm after midnight.

    Low: 60 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 83. Light south wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 57. Southwest wind 10 to 15 mph becoming light south after midnight. Winds could gust as high as 20 mph.

    Low: 57 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 77. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 77 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 55. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 81.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 57.

    Low: 57 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 82.

    High: 82 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 55.

    Low: 55 °F

    Increasing
    Clouds

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, increasing clouds, with a low around 60. Southwest wind around 5 mph becoming calm after midnight.
Friday
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 83. Light south wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Friday Night
Increasing clouds, with a low around 57. Southwest wind 10 to 15 mph becoming light south after midnight. Winds could gust as high as 20 mph.
Saturday
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 77. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Increasing clouds, with a low around 55. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.
Sunday
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 81.
Sunday Night
Increasing clouds, with a low around 57.
Monday
Partly sunny, then gradually becoming sunny, with a high near 82.
Monday Night
Increasing clouds, with a low around 55.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rancho Cucamonga CA
 34.13°N 117.57°W (Elev. 1362 ft)
Last Update:
1:27 pm PDT Jun 19, 2025
Forecast Valid:
11pm PDT Jun 19, 2025-6pm PDT Jun 26, 2025
 
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