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

60°F

16°C

Humidity 61%
Wind Speed NNE 1 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 11 Nov 01:00 AM PST
Extended Forecast for

Rancho Cucamonga CA

  • Overnight

    Overnight: Clear, with a low around 60. West wind around 5 mph.

    Low: 60 °F

    Clear

  • Veterans Day

    Veterans Day: Sunny, with a high near 83. Calm wind becoming west around 5 mph in the afternoon.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 60. East wind around 5 mph becoming calm.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 79. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers after 10pm. Partly cloudy, with a low around 58. Calm wind becoming southwest around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Chance
    Showers

  • Friday

    Friday: Showers likely, mainly after 10am. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers. The rain could be heavy at times. Low around 55. Chance of precipitation is 90%.

    Low: 55 °F

    Heavy Rain

  • Saturday

    Saturday: Showers likely before 10am. Partly sunny, with a high near 65.

    High: 65 °F

    Showers
    Likely then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 60. West wind around 5 mph.
Veterans Day
Sunny, with a high near 83. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 60. East wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 79. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Thursday Night
A chance of showers after 10pm. Partly cloudy, with a low around 58. Calm wind becoming southwest around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers likely, mainly after 10am. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Friday Night
Showers. The rain could be heavy at times. Low around 55. Chance of precipitation is 90%.
Saturday
Showers likely before 10am. Partly sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 67.
Sunday Night
A chance of showers. Partly cloudy, with a low around 53.
Monday
Showers likely. Mostly cloudy, with a high near 64.
Monday Night
Showers likely. Mostly cloudy, with a low around 49.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 63.
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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:
12:13 am PST Nov 11, 2026
Forecast Valid:
2am PST Nov 11, 2026-6pm PST Nov 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation