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

69°F

21°C

Humidity 56%
Wind Speed WNW 2 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Last update 25 May 01:00 PM PDT
Extended Forecast for

3 Miles SSE Rancho Cucamonga CA

  • Memorial Day

    Memorial Day: Sunny, with a high near 77. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Patchy drizzle after 2am. Increasing clouds, with a low around 56. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Drizzle

  • Tuesday

    Tuesday: Patchy drizzle before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 70. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 70 °F

    Patchy
    Drizzle then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Patchy drizzle after 2am. Mostly cloudy, with a low around 54. Southwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

    Low: 54 °F

    Partly Cloudy
    then Patchy
    Drizzle

  • Wednesday

    Wednesday: Patchy drizzle before 11am. Partly sunny, with a high near 69. Southeast wind 5 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 69 °F

    Patchy
    Drizzle then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 53.

    Low: 53 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 68.

    High: 68 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Memorial Day
Sunny, with a high near 77. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Patchy drizzle after 2am. Increasing clouds, with a low around 56. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Patchy drizzle before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 70. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Tuesday Night
Patchy drizzle after 2am. Mostly cloudy, with a low around 54. Southwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Wednesday
Patchy drizzle before 11am. Partly sunny, with a high near 69. Southeast wind 5 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Increasing clouds, with a low around 53.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 76.
Friday Night
Clear, with a low around 55.
Saturday
Sunny, with a high near 82.
Saturday Night
Clear, with a low around 58.
Sunday
Sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Rancho Cucamonga CA
 34.09°N 117.53°W (Elev. 1106 ft)
Last Update:
10:54 am PDT May 25, 2026
Forecast Valid:
2pm PDT May 25, 2026-6pm PDT May 31, 2026
 
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