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

67°F

19°C

Humidity 77%
Wind Speed WSW 3 MPH
Barometer NA
Dewpoint 59°F (15°C)
Visibility NA
Last update 25 Jun 12:00 AM PDT
Extended Forecast for

Fontana CA

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 62. West wind around 5 mph becoming calm.

    Low: 62 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, sunny, with a high near 86. Light south wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 60. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Increasing
    Clouds

  • Friday

    Friday: Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 83. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. Southwest wind 10 to 15 mph becoming light south after midnight. Winds could gust as high as 20 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Patchy drizzle and fog before 11am. Mostly sunny, with a high near 78.

    High: 78 °F

    Patchy
    Drizzle and
    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 76.

    High: 76 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 62. West wind around 5 mph becoming calm.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 86. Light south wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Increasing clouds, with a low around 60. West wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 83. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Mostly clear, with a low around 60. Southwest wind 10 to 15 mph becoming light south after midnight. Winds could gust as high as 20 mph.
Saturday
Patchy drizzle and fog before 11am. Mostly sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 79.
Monday Night
Clear, with a low around 57.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Clear, with a low around 57.
Wednesday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fontana CA
 34.1°N 117.45°W (Elev. 1240 ft)
Last Update:
12:17 am PDT Jun 25, 2026
Forecast Valid:
1am PDT Jun 25, 2026-6pm PDT Jul 1, 2026
 
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