Hazardous Weather Conditions
Current conditions at
Fontana-Arrow Highway (CQ057)
Lat: 34.10056°NLon: 117.49222°WElev: 1191.0ft.NA
78°F
26°C
| Humidity | 18% |
| Wind Speed | N 0 MPH |
| Barometer | NA |
| Dewpoint | 32°F (0°C) |
| Visibility | NA |
| Heat Index | 77°F (25°C) |
| Last update | 13 Mar 10:00 AM PDT |
Extended Forecast for
Rancho Cucamonga CA
Extreme Heat Watch March 16, 10:00am until March 20, 08:00pm
Heat Advisory March 13, 11:02am until March 13, 08:00pm
NOW until 8:00pm Fri
Heat Advisory
Today
High: 90 °F
Sunny
Tonight
Low: 61 °F
Partly Cloudy
Saturday
High: 83 °F
Mostly Sunny
Saturday Night
Low: 59 °F
Clear
Sunday
High: 89 °F
Sunny
Sunday Night
Low: 64 °F
Mostly Clear
Monday
High: 91 °F
Sunny
Monday Night
Low: 67 °F
Mostly Clear
Detailed Forecast
Today
Sunny, with a high near 90. Light south wind becoming west 5 to 10 mph in the afternoon.
Tonight
Partly cloudy, with a low around 61. West wind 5 to 10 mph becoming light and variable in the evening.
Saturday
Mostly 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 20 mph.
Saturday Night
Clear, with a low around 59. West wind 5 to 10 mph.
Sunday
Sunny, with a high near 89. West wind 5 to 10 mph becoming north in the afternoon.
Sunday Night
Mostly clear, with a low around 64.
Monday
Sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 67.
Tuesday
Sunny, with a high near 97.
Tuesday Night
Clear, with a low around 69.
Wednesday
Sunny, with a high near 98.
Wednesday Night
Clear, with a low around 69.
Thursday
Sunny, with a high near 99.
Additional Forecasts and Information
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Point Forecast:
Rancho Cucamonga CA
34.13°N 117.57°W (Elev. 1362 ft)
34.13°N 117.57°W (Elev. 1362 ft)
12:24 am PDT Mar 13, 2026
11am PDT Mar 13, 2026-6pm PDT Mar 19, 2026
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