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

89°F

32°C

Humidity 34%
Wind Speed WSW 6 MPH
Barometer NA
Dewpoint 57°F (14°C)
Visibility NA
Heat Index88°F (31°C)
Last update 15 Aug 06:00 PM PDT
Extended Forecast for

3 Miles ESE Rancho Cucamonga CA

  • Tonight

    Tonight: Partly cloudy, with a low around 65. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 65 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 93. Light south wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 93 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67. Southwest wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 20 mph.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 96.

    High: 96 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 99.

    High: 99 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 65. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Sunday
Mostly sunny, with a high near 93. Light south wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 67. Southwest wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 20 mph.
Monday
Sunny, with a high near 94. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 96.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Sunny, with a high near 99.
Wednesday Night
Mostly clear, with a low around 70.
Thursday
Sunny, with a high near 99.
Thursday Night
Mostly clear, with a low around 70.
Friday
Sunny, with a high near 99.
Friday Night
Mostly clear, with a low around 70.
Saturday
Sunny, with a high near 97.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Rancho Cucamonga CA
 34.11°N 117.54°W (Elev. 1161 ft)
Last Update:
12:17 pm PDT Aug 15, 2026
Forecast Valid:
7pm PDT Aug 15, 2026-6pm PDT Aug 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation