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

78°F

26°C

Humidity 10%
Wind Speed NNE 17 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Heat Index77°F (25°C)
Last update 04 Feb 09:00 AM PST
Extended Forecast for

Rancho Cucamonga CA

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

    NOW until 12:00pm Thu

    Wind Advisory

  • Today

    High: 83 °F

    Sunny then
    Patchy
    Blowing Dust
    and Breezy

  • Tonight

    Tonight: Patchy blowing dust before 7pm. Increasing clouds, with a low around 58. North wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

    Low: 58 °F

    Patchy
    Blowing Dust
    then Partly
    Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 79. Northwest wind around 5 mph becoming southwest in the afternoon.

    High: 79 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers after 10pm. Mostly cloudy, with a low around 56. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 56 °F

    Slight Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 73. Light southwest wind becoming west 5 to 10 mph in the afternoon.

    High: 73 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 54.

    Low: 54 °F

    Clear

Detailed Forecast

Today
Patchy blowing dust after 1pm. Sunny, with a high near 83. Breezy, with a north wind 20 to 25 mph, with gusts as high as 40 mph.
Tonight
Patchy blowing dust before 7pm. Increasing clouds, with a low around 58. North wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Thursday
Partly sunny, with a high near 79. Northwest wind around 5 mph becoming southwest in the afternoon.
Thursday Night
A slight chance of showers after 10pm. Mostly cloudy, with a low around 56. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 73. Light southwest wind becoming west 5 to 10 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Sunny, with a high near 75.
Saturday Night
Clear, with a low around 54.
Sunday
Sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 54.
Monday
Mostly sunny, with a high near 73.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 50.
Tuesday
A chance of showers. Partly sunny, with a high near 65.
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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:
2:07 am PST Feb 4, 2026
Forecast Valid:
10am PST Feb 4, 2026-6pm PST Feb 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation