Current conditions at

Fontana-Arrow Highway (CQ057)

Lat: 34.10056°NLon: 117.49222°WElev: 1191.0ft.

NA

79°F

26°C

Humidity 20%
Wind Speed W 7 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Heat Index78°F (26°C)
Last update 05 Apr 07:00 PM PDT
Extended Forecast for

5 Miles S Fontana CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. West wind around 5 mph.

    Low: 58 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 80. Light west wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 80 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. Southwest wind 10 to 15 mph becoming light west  in the evening. Winds could gust as high as 25 mph.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80. Light west wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56. West wind 10 to 15 mph becoming light  in the evening. Winds could gust as high as 20 mph.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 57.

    Low: 57 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 58. West wind around 5 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 80. Light west wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Monday Night
Mostly clear, with a low around 55. Southwest wind 10 to 15 mph becoming light west in the evening. Winds could gust as high as 25 mph.
Tuesday
Sunny, with a high near 80. Light west wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 56. West wind 10 to 15 mph becoming light in the evening. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Increasing clouds, with a low around 57.
Thursday
Partly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 55.
Friday
A chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 72.
Friday Night
A chance of showers. Mostly cloudy, with a low around 53.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 68.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 53.
Sunday
A slight chance of showers. Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Fontana CA
 34.03°N 117.47°W (Elev. 1624 ft)
11:31 am PDT Apr 5, 2026
9pm PDT Apr 5, 2026-6pm PDT Apr 12, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database