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

56°F

13°C

Humidity 73%
Wind Speed WSW 1 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 12 Feb 10:00 PM PST
Extended Forecast for

Fontana CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 71. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.

    High: 71 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 48. West wind around 5 mph becoming calm.

    Low: 48 °F

    Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 71. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 50. Southwest wind 5 to 10 mph becoming light in the evening.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 67.

    High: 67 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A chance of rain after 10pm. Mostly cloudy, with a low around 49. Chance of precipitation is 30%.

    Low: 49 °F

    Chance Rain

  • Washington's Birthday

    Washington's Birthday: Rain, mainly between 10am and 4pm, then showers and possibly a thunderstorm after 4pm. Cloudy, with a high near 58.

    High: 58 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 10pm, then rain, mainly after 10pm. Cloudy, with a low around 48.

    Low: 48 °F

    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 48. Calm wind.
Friday
Sunny, with a high near 71. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.
Friday Night
Clear, with a low around 48. West wind around 5 mph becoming calm.
Saturday
Mostly sunny, with a high near 71. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 50. Southwest wind 5 to 10 mph becoming light in the evening.
Sunday
Mostly cloudy, with a high near 67.
Sunday Night
A chance of rain after 10pm. Mostly cloudy, with a low around 49. Chance of precipitation is 30%.
Washington's Birthday
Rain, mainly between 10am and 4pm, then showers and possibly a thunderstorm after 4pm. Cloudy, with a high near 58.
Monday Night
Showers and possibly a thunderstorm before 10pm, then rain, mainly after 10pm. Cloudy, with a low around 48.
Tuesday
Rain. Cloudy, with a high near 58. Breezy.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 45.
Wednesday
A chance of rain. Partly sunny, with a high near 58.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 46.
Thursday
A chance of rain. Partly sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fontana CA
 34.12°N 117.46°W (Elev. 1381 ft)
Last Update:
11:55 am PST Feb 12, 2026
Forecast Valid:
11pm PST Feb 12, 2026-6pm PST Feb 19, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation