Current conditions at

Fontana-Arrow Highway (CQ057)

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

NA

59°F

15°C

Humidity 81%
Wind Speed NE 1 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Last update 16 Mar 05:00 AM PDT
Extended Forecast for

3 Miles SSE Rancho Cucamonga CA

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

    Today: Sunny, with a high near 94. Light and variable wind becoming north 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 94 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 65. West wind around 5 mph becoming calm  in the evening.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 99. Light west wind increasing to 5 to 10 mph in the morning.

    High: 99 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 66. West wind 5 to 10 mph becoming light and variable  in the evening.

    Low: 66 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 98. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 98 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 66.

    Low: 66 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 99.

    High: 99 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 68.

    Low: 68 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 99.

    High: 99 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 94. Light and variable wind becoming north 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 65. West wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 99. Light west wind increasing to 5 to 10 mph in the morning.
Tuesday Night
Clear, with a low around 66. West wind 5 to 10 mph becoming light and variable in the evening.
Wednesday
Sunny, with a high near 98. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Clear, with a low around 66.
Thursday
Sunny, with a high near 99.
Thursday Night
Clear, with a low around 68.
Friday
Sunny, with a high near 99.
Friday Night
Clear, with a low around 66.
Saturday
Sunny, with a high near 95.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Rancho Cucamonga CA
 34.09°N 117.53°W (Elev. 1106 ft)
2:08 am PDT Mar 16, 2026
6am PDT Mar 16, 2026-6pm PDT Mar 22, 2026
 
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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