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

68°F

20°C

Humidity 36%
Wind Speed N 4 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 24 Jan 02:00 PM PST
Extended Forecast for

Rancho Cucamonga CA

Wind Advisory January 24, 07:00pm until January 25, 01:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Clear, with a low around 45. North wind 10 to 15 mph becoming light and variable. Winds could gust as high as 25 mph.

    Low: 45 °F

    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 66. Northwest wind 5 to 10 mph becoming light and variable in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 46. Calm wind becoming north around 5 mph.

    Low: 46 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 69. Light and variable wind becoming east 5 to 10 mph in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46. Northwest wind around 5 mph becoming southwest in the evening.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 45. North wind 10 to 15 mph becoming light and variable. Winds could gust as high as 25 mph.
Sunday
Mostly sunny, with a high near 66. Northwest wind 5 to 10 mph becoming light and variable in the afternoon.
Sunday Night
Mostly cloudy, with a low around 46. Calm wind becoming north around 5 mph.
Monday
Mostly sunny, with a high near 69. Light and variable wind becoming east 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 46. Northwest wind around 5 mph becoming southwest in the evening.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Partly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 49.
Friday
Sunny, with a high near 73.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 74.
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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:
12:56 pm PST Jan 24, 2026
Forecast Valid:
3pm PST Jan 24, 2026-6pm PST Jan 31, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation