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

Fontana-Arrow Highway (CQ057)

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

NA

56°F

13°C

Humidity 88%
Wind Speed W 1 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Last update 10 Mar 01:00 AM PDT
Extended Forecast for

3 Miles ESE Rancho Cucamonga CA

  • Overnight

    Overnight: Partly cloudy, with a low around 52. Southwest wind around 5 mph.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Patchy fog between 8am and 11am. Otherwise, mostly sunny, with a high near 72. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 72 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 52. West wind 5 to 10 mph becoming light south in the evening.

    Low: 52 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, sunny, with a high near 84. Light southwest wind becoming west 5 to 10 mph in the afternoon.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 60. Southwest wind around 5 mph becoming calm after midnight.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 95.

    High: 95 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 52. Southwest wind around 5 mph.
Tuesday
Patchy fog between 8am and 11am. Otherwise, mostly sunny, with a high near 72. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 52. West wind 5 to 10 mph becoming light south in the evening.
Wednesday
Patchy fog before 8am. Otherwise, sunny, with a high near 84. Light southwest wind becoming west 5 to 10 mph in the afternoon.
Wednesday Night
Clear, with a low around 60. Southwest wind around 5 mph becoming calm after midnight.
Thursday
Sunny, with a high near 93.
Thursday Night
Mostly clear, with a low around 63.
Friday
Mostly sunny, with a high near 95.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Sunny, with a high near 96.
Sunday Night
Clear, with a low around 64.
Monday
Sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Rancho Cucamonga CA
 34.11°N 117.54°W (Elev. 1161 ft)
Last Update:
12:29 am PDT Mar 10, 2026
Forecast Valid:
2am PDT Mar 10, 2026-6pm PDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation