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

78°F

26°C

Humidity 36%
Wind Speed WSW 8 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Heat Index78°F (26°C)
Last update 16 May 04:00 PM PDT
Extended Forecast for

3 Miles ESE Rancho Cucamonga CA

  • Tonight

    Tonight: Increasing clouds, with a low around 53. West wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 53 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Cloudy, then gradually becoming mostly sunny, with a high near 68. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 68 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: A slight chance of showers. Cloudy, with a low around 54. Southwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 20%.

    Low: 54 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 73. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 30 mph.

    High: 73 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54. West wind 10 to 15 mph becoming west 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 53. West wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday
Cloudy, then gradually becoming mostly sunny, with a high near 68. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday Night
A slight chance of showers. Cloudy, with a low around 54. Southwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 20%.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 73. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 30 mph.
Sunday Night
Mostly clear, with a low around 54. West wind 10 to 15 mph becoming west 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Monday
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Mostly clear, with a low around 65.
Thursday
Sunny, with a high near 92.
Thursday Night
Patchy fog. Otherwise, partly cloudy, with a low around 64.
Friday
Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Rancho Cucamonga CA
 34.11°N 117.54°W (Elev. 1161 ft)
Last Update:
1:15 pm PDT May 16, 2025
Forecast Valid:
5pm PDT May 16, 2025-6pm PDT May 23, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation