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

88°F

31°C

Humidity 32%
Wind Speed WSW 7 MPH
Barometer NA
Dewpoint 55°F (13°C)
Visibility NA
Heat Index86°F (30°C)
Last update 17 Jun 07:00 PM PDT
Extended Forecast for

3 Miles NNE Fontana CA

Heat Advisory June 17, 08:20pm until June 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 17, 08:20pm until June 18, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • Tonight

    Low: 66 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 99. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 99 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 64. Southwest wind 10 to 15 mph becoming light west after midnight. Winds could gust as high as 20 mph.

    Low: 64 °F

    Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 91. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62. Southwest wind 5 to 10 mph.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 58.

    Low: 58 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 80.

    High: 80 °F

    Becoming
    Sunny

Detailed Forecast

Tonight
Clear, with a low around 66. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Wednesday
Sunny, with a high near 99. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Clear, with a low around 64. Southwest wind 10 to 15 mph becoming light west after midnight. Winds could gust as high as 20 mph.
Juneteenth
Sunny, with a high near 91. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 62. Southwest wind 5 to 10 mph.
Friday
Sunny, with a high near 87.
Friday Night
Increasing clouds, with a low around 58.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Fontana CA
 34.14°N 117.44°W (Elev. 1614 ft)
Last Update:
1:57 pm PDT Jun 17, 2025
Forecast Valid:
8pm PDT Jun 17, 2025-6pm PDT Jun 24, 2025
 
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