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

82°F

28°C

Humidity 10%
Wind Speed NNE 14 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Heat Index80°F (27°C)
Last update 04 Feb 04:00 PM PST
Extended Forecast for

3 Miles E Rancho Cucamonga CA

Wind Advisory February 4, 05:33pm until February 5, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory February 4, 05:33pm until February 5, 12:00pm

    NOW until 12:00pm Thu

    Wind Advisory

  • Tonight

    Low: 56 °F

    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 81. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 81 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: A slight chance of showers after 10pm. Mostly cloudy, with a low around 55. West wind around 5 mph becoming calm after midnight. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 74. Calm wind becoming west around 5 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 51. West wind 5 to 10 mph becoming light in the evening.

    Low: 51 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 55.

    Low: 55 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 56. North wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Thursday
Increasing clouds, with a high near 81. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Thursday Night
A slight chance of showers after 10pm. Mostly cloudy, with a low around 55. West wind around 5 mph becoming calm after midnight. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 74. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 51. West wind 5 to 10 mph becoming light in the evening.
Saturday
Sunny, with a high near 77.
Saturday Night
Clear, with a low around 55.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 55.
Monday
Partly sunny, with a high near 75.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 53.
Tuesday
A chance of showers. Mostly cloudy, with a high near 65.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 50.
Wednesday
A chance of showers. Partly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Rancho Cucamonga CA
 34.11°N 117.51°W (Elev. 1198 ft)
Last Update:
12:31 pm PST Feb 4, 2026
Forecast Valid:
5pm PST Feb 4, 2026-6pm PST Feb 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation