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

57°F

14°C

Humidity 52%
Wind Speed NE 2 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 12 Nov 04:00 AM PST
Extended Forecast for

Fontana CA

  • Today

    Today: Sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: A chance of showers after 10pm. Increasing clouds, with a low around 58. Calm wind becoming northwest around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers. Partly sunny, with a high near 69. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly after 4am. Mostly cloudy, with a low around 56. South wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 56 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely before 10am. Partly sunny, with a high near 66. Calm wind becoming south around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Showers
    Likely then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers after 4am. Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: Showers, mainly after 4pm. Partly sunny, with a high near 67.

    High: 67 °F

    Showers

Detailed Forecast

Today
Sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
A chance of showers after 10pm. Increasing clouds, with a low around 58. Calm wind becoming northwest around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of showers. Partly sunny, with a high near 69. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers likely, mainly after 4am. Mostly cloudy, with a low around 56. South wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Showers likely before 10am. Partly sunny, with a high near 66. Calm wind becoming south around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Sunny, with a high near 69.
Sunday Night
A slight chance of showers after 4am. Partly cloudy, with a low around 54.
Monday
Showers, mainly after 4pm. Partly sunny, with a high near 67.
Monday Night
Showers. Mostly cloudy, with a low around 52.
Tuesday
A chance of showers. Partly sunny, with a high near 63.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 48.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 65.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fontana CA
 34.1°N 117.43°W (Elev. 1296 ft)
Last Update:
1:56 am PST Nov 12, 2026
Forecast Valid:
5am PST Nov 12, 2026-6pm PST Nov 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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