Hazardous Weather Conditions
Current conditions at
Fontana-Arrow Highway (CQ057)
Lat: 34.10056°NLon: 117.49222°WElev: 1191.0ft.NA
59°F
15°C
| Humidity | 48% |
| Wind Speed | NNE 1 MPH |
| Barometer | NA |
| Dewpoint | 40°F (4°C) |
| Visibility | NA |
| Last update | 14 Mar 08:00 AM PDT |
Extended Forecast for
3 Miles S Rialto CA
Extreme Heat Watch March 16, 10:00am until March 20, 08:00pm
Today

High: 85 °F
Sunny
Tonight

Low: 57 °F
Clear
Sunday

High: 92 °F
Sunny and
BreezySunday Night

Low: 64 °F
Mostly Clear
Monday

High: 96 °F
Sunny
Monday Night

Low: 66 °F
Mostly Clear
Tuesday

High: 100 °F
Sunny
Tuesday Night

Low: 68 °F
Clear
Wednesday

High: 100 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 85. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Clear, with a low around 57. West wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 92. Breezy, with a north wind 10 to 15 mph increasing to 20 to 25 mph in the morning. Winds could gust as high as 40 mph.
Sunday Night
Mostly clear, with a low around 64. North wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 96. North wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 66.
Tuesday
Sunny, with a high near 100.
Tuesday Night
Clear, with a low around 68.
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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles S Rialto CA
34.08°N 117.4°W (Elev. 1125 ft)
34.08°N 117.4°W (Elev. 1125 ft)
2:13 am PDT Mar 14, 2026
9am PDT Mar 14, 2026-6pm PDT Mar 20, 2026



