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

54°F

12°C

Humidity 77%
Wind Speed NE 0 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 16 Apr 06:00 AM PDT
Extended Forecast for

3 Miles ESE Rancho Cucamonga CA

  • Today

    Today: Patchy fog between 8am and 11am. Otherwise, partly sunny, with a high near 74. Light west wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 74 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. Light and variable wind becoming north 10 to 15 mph after midnight. Winds could gust as high as 25 mph.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77. Breezy, with a north wind 20 to 25 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 40 mph.

    High: 77 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Clear, with a low around 54. Northwest wind around 5 mph becoming southeast after midnight.

    Low: 54 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 83. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

Today
Patchy fog between 8am and 11am. Otherwise, partly sunny, with a high near 74. Light west wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 53. Light and variable wind becoming north 10 to 15 mph after midnight. Winds could gust as high as 25 mph.
Friday
Sunny, with a high near 77. Breezy, with a north wind 20 to 25 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 40 mph.
Friday Night
Clear, with a low around 54. Northwest wind around 5 mph becoming southeast after midnight.
Saturday
Sunny, with a high near 83. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Rancho Cucamonga CA
 34.11°N 117.54°W (Elev. 1161 ft)
Last Update:
12:20 am PDT Apr 16, 2026
Forecast Valid:
7am PDT Apr 16, 2026-6pm PDT Apr 22, 2026
 
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Additional Resources

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