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

64°F

18°C

Humidity 62%
Wind Speed SW 6 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 29 May 08:00 PM PDT
Extended Forecast for

3 Miles S Rialto CA

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 54. Southwest wind 5 to 10 mph becoming light after midnight.

    Low: 54 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, sunny, with a high near 82. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 82 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58. West wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 20 mph.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 89. Light west wind increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. West wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 54. Southwest wind 5 to 10 mph becoming light after midnight.
Saturday
Patchy fog before 8am. Otherwise, sunny, with a high near 82. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 58. West wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 89. Light west wind increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Mostly clear, with a low around 61. West wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 20 mph.
Monday
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Clear, with a low around 60.
Thursday
Sunny, with a high near 89.
Thursday Night
Clear, with a low around 59.
Friday
Sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Rialto CA
 34.06°N 117.39°W (Elev. 1056 ft)
Last Update:
12:44 pm PDT May 29, 2026
Forecast Valid:
9pm PDT May 29, 2026-6pm PDT Jun 5, 2026
 
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