National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Fontana-Arrow Highway (CQ057)

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

NA

92°F

33°C

Humidity 9%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Heat Index88°F (31°C)
Last update 13 Mar 02:00 PM PDT
Extended Forecast for

5 Miles SSW Fontana CA

Extreme Heat Watch March 16, 10:00am until March 20, 08:00pm
Heat Advisory March 13, 03:40pm until March 13, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch
...
  •  
    Heat Advisory March 13, 03:40pm until March 13, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 87. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 58. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 58 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 95. Light northeast wind becoming north 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 95 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. North wind 5 to 10 mph.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 98.

    High: 98 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 102.

    High: 102 °F

    Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 62. West wind 5 to 10 mph becoming light and variable in the evening.
Saturday
Mostly sunny, with a high near 87. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Clear, with a low around 58. West wind 5 to 10 mph becoming light and variable in the evening.
Sunday
Sunny, with a high near 95. Light northeast wind becoming north 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 64. North wind 5 to 10 mph.
Monday
Sunny, with a high near 98.
Monday Night
Mostly clear, with a low around 67.
Tuesday
Sunny, with a high near 102.
Tuesday Night
Clear, with a low around 68.
Wednesday
Sunny, with a high near 101.
Wednesday Night
Clear, with a low around 68.
Thursday
Sunny, with a high near 103.
Thursday Night
Clear, with a low around 70.
Friday
Sunny, with a high near 104.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Fontana CA
 34.04°N 117.5°W (Elev. 912 ft)
Last Update:
12:05 pm PDT Mar 13, 2026
Forecast Valid:
3pm PDT Mar 13, 2026-6pm PDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation