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

49°F

9°C

Humidity 93%
Wind Speed NE 1 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 19 Nov 10:00 PM PST
Extended Forecast for

Fontana CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers, mainly after 4pm. High near 57. Southeast wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 57 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers. The rain could be heavy at times. Low around 47. Northeast wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 47 °F

    Heavy Rain

  • Friday

    Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 59. Northeast wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 59 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 48. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 48.

    Low: 48 °F

    Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 46. Calm wind.
Thursday
Showers, mainly after 4pm. High near 57. Southeast wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers. The rain could be heavy at times. Low around 47. Northeast wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 59. Northeast wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers. Mostly cloudy, with a low around 48. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Sunny, with a high near 68.
Sunday Night
Clear, with a low around 48.
Monday
Sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fontana CA
 34.1°N 117.43°W (Elev. 1296 ft)
Last Update:
9:10 pm PST Nov 19, 2025
Forecast Valid:
11pm PST Nov 19, 2025-6pm PST Nov 26, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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