Current conditions at

Fontana-Arrow Highway (CQ057)

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

NA

84°F

29°C

Humidity 15%
Wind Speed WSW 5 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Heat Index81°F (27°C)
Last update 14 Mar 03:00 PM PDT
Extended Forecast for

3 Miles S Rialto CA

Heat Advisory March 16, 10:00am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: Partly cloudy, with a low around 58. West wind 10 to 15 mph becoming light and variable  in the evening. Winds could gust as high as 20 mph.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 94. North wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 94 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. North wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 97. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 97 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 67. North wind 5 to 10 mph becoming light.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 100.

    High: 100 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 100.

    High: 100 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 69.

    Low: 69 °F

    Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 58. West wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Sunday
Mostly sunny, with a high near 94. North wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 63. North wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 97. North wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 67. North wind 5 to 10 mph becoming light.
Tuesday
Mostly sunny, with a high near 100.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Sunny, with a high near 100.
Wednesday Night
Clear, with a low around 69.
Thursday
Sunny, with a high near 103.
Thursday Night
Clear, with a low around 71.
Friday
Sunny, with a high near 104.
Friday Night
Clear, with a low around 71.
Saturday
Sunny, with a high near 100.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Rialto CA
 34.08°N 117.4°W (Elev. 1125 ft)
12:54 pm PDT Mar 14, 2026
4pm PDT Mar 14, 2026-6pm PDT Mar 21, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database