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

59°F

15°C

Humidity 63%
Wind Speed ENE 1 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 15 Mar 02:00 AM PDT
Extended Forecast for

3 Miles N Fontana CA

Heat Advisory March 16, 10:00am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 90. Breezy, with a north wind 15 to 20 mph increasing to 20 to 25 mph in the morning. Winds could gust as high as 40 mph.

    High: 90 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67. Breezy, with a north wind 15 to 25 mph, with gusts as high as 35 mph.

    Low: 67 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Monday

    Monday: Sunny, with a high near 94. Breezy, with a north wind 20 to 25 mph, with gusts as high as 40 mph.

    High: 94 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. North wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 98. Breezy.

    High: 98 °F

    Sunny and
    Breezy then
    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 72.

    Low: 72 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 99.

    High: 99 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 59. Calm wind.
Sunday
Sunny, with a high near 90. Breezy, with a north wind 15 to 20 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 67. Breezy, with a north wind 15 to 25 mph, with gusts as high as 35 mph.
Monday
Sunny, with a high near 94. Breezy, with a north wind 20 to 25 mph, with gusts as high as 40 mph.
Monday Night
Mostly clear, with a low around 68. North wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph.
Tuesday
Sunny, with a high near 98. Breezy.
Tuesday Night
Clear, with a low around 72.
Wednesday
Sunny, with a high near 99.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
Sunny, with a high near 101.
Thursday Night
Clear, with a low around 75.
Friday
Sunny, with a high near 102.
Friday Night
Clear, with a low around 74.
Saturday
Sunny, with a high near 97.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Fontana CA
 34.14°N 117.46°W (Elev. 1490 ft)
Last Update:
2:03 am PDT Mar 15, 2026
Forecast Valid:
3am PDT Mar 15, 2026-6pm PDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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