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

90°F

32°C

Humidity 25%
Wind Speed WSW 7 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Heat Index87°F (31°C)
Last update 17 Jul 04:00 PM PDT
Extended Forecast for

Fontana CA

  • Tonight

    Tonight: A slight chance of showers and thunderstorms after 11pm. Partly cloudy, with a low around 64. Southwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. Light southwest wind increasing to 5 to 10 mph in the afternoon. Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 63. Southwest wind 5 to 10 mph becoming light after midnight.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 89. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62. Southwest wind 5 to 10 mph.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Monday Night

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

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms after 11pm. Partly cloudy, with a low around 64. Southwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. Light southwest wind increasing to 5 to 10 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 63. Southwest wind 5 to 10 mph becoming light after midnight.
Saturday
Sunny, with a high near 89. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 62. Southwest wind 5 to 10 mph.
Sunday
Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 61.
Monday
Sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fontana CA
 34.1°N 117.43°W (Elev. 1296 ft)
Last Update:
1:07 pm PDT Jul 17, 2025
Forecast Valid:
5pm PDT Jul 17, 2025-6pm PDT Jul 24, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation