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

67°F

19°C

Humidity 79%
Wind Speed SSW 2 MPH
Barometer NA
Dewpoint 60°F (16°C)
Visibility NA
Last update 15 Jul 01:00 AM PDT
Extended Forecast for

Rancho Cucamonga CA

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 61. Southwest wind around 5 mph becoming calm.

    Low: 61 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, sunny, with a high near 86. Light south wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59. Southwest wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy fog before 11am. Otherwise, sunny, with a high near 85. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 85 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 59. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 59 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 11am. Otherwise, sunny, with a high near 86.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 61. Southwest wind around 5 mph becoming calm.
Tuesday
Patchy fog before 8am. Otherwise, sunny, with a high near 86. Light south wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 59. Southwest wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 20 mph.
Wednesday
Patchy fog before 11am. Otherwise, sunny, with a high near 85. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 59. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Thursday
Patchy fog before 11am. Otherwise, sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 61.
Friday
Mostly sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 63.
Monday
Sunny, with a high near 89.
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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:
7:57 pm PDT Jul 14, 2025
Forecast Valid:
2am PDT Jul 15, 2025-6pm PDT Jul 21, 2025
 
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