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 100%
Wind Speed SE 0 MPH
Barometer NA
Dewpoint 57°F (14°C)
Visibility NA
Last update 14 Nov 06:00 AM PST
Extended Forecast for

5 Miles S Fontana CA

  • Today

    Today: A slight chance of showers before 10am. Mostly sunny, with a high near 66. Calm wind becoming southwest around 5 mph. Chance of precipitation is 20%.

    High: 66 °F

    Slight Chance
    Showers then
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. Northwest wind around 5 mph becoming northeast after midnight.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 69. Calm wind becoming west around 5 mph in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers after 4pm. Partly sunny, with a high near 66. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, mainly between 10pm and 4am. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.

    Low: 53 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers before 10am. Mostly sunny, with a high near 62. Chance of precipitation is 40%.

    High: 62 °F

    Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers before 10am. Mostly sunny, with a high near 66. Calm wind becoming southwest around 5 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 53. Northwest wind around 5 mph becoming northeast after midnight.
Sunday
Mostly sunny, with a high near 69. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 55. Calm wind.
Monday
A chance of showers after 4pm. Partly sunny, with a high near 66. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Showers likely, mainly between 10pm and 4am. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Tuesday
A chance of showers before 10am. Mostly sunny, with a high near 62. Chance of precipitation is 40%.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 62.
Wednesday Night
A chance of showers after 10pm. Mostly cloudy, with a low around 49.
Thursday
Showers likely. Partly sunny, with a high near 60.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 48.
Friday
A slight chance of showers. Mostly sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Fontana CA
 34.03°N 117.44°W (Elev. 1532 ft)
Last Update:
12:32 am PST Nov 14, 2026
Forecast Valid:
7am PST Nov 14, 2026-6pm PST Nov 20, 2026
 
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