Hazardous Weather Conditions
Current conditions at
Fontana-Arrow Highway (CQ057)
Lat: 34.10056°NLon: 117.49222°WElev: 1191.0ft.NA
90°F
32°C
| Humidity | 11% |
| Wind Speed | NNE 13 MPH |
| Barometer | NA |
| Dewpoint | 30°F (-1°C) |
| Visibility | NA |
| Heat Index | 86°F (30°C) |
| Last update | 16 Mar 01:00 PM PDT |
Extended Forecast for
3 Miles SSE Rancho Cucamonga CA
Heat Advisory until March 20, 08:00pm
NOW until 8:00pm Fri

Heat Advisory
This Afternoon

High: 94 °F
Sunny
Tonight

Low: 65 °F
Mostly Clear
Tuesday

High: 99 °F
Sunny
Tuesday Night

Low: 66 °F
Clear
Wednesday

High: 97 °F
Sunny
Wednesday Night

Low: 67 °F
Clear
Thursday

High: 99 °F
Sunny
Thursday Night

Low: 67 °F
Clear
Detailed Forecast
This Afternoon
Sunny, with a high near 94. Northeast wind around 15 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 65. North wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 99. Light and variable wind becoming north 5 to 10 mph in the afternoon.
Tuesday Night
Clear, with a low around 66. West wind 5 to 10 mph becoming light and variable.
Wednesday
Sunny, with a high near 97. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Clear, with a low around 67.
Thursday
Sunny, with a high near 99.
Thursday Night
Clear, with a low around 67.
Friday
Sunny, with a high near 99.
Friday Night
Clear, with a low around 65.
Saturday
Sunny, with a high near 94.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Patchy fog. Otherwise, mostly sunny, with a high near 88.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles SSE Rancho Cucamonga CA
34.09°N 117.53°W (Elev. 1106 ft)
34.09°N 117.53°W (Elev. 1106 ft)
11:05 am PDT Mar 16, 2026
2pm PDT Mar 16, 2026-6pm PDT Mar 22, 2026



