Forecast

    Forecast for Rancho Cucamonga, CA | Forecast Periods: 14
    Monday
    Mar 16
    2026

    Rancho Cucamonga, CA

    Updated: 11:05 AM PDT

    92°F

    Sunny

    5 mph N
    Precipitation: 0%

    Sunny, with a high near 92. North wind around 5 mph.

    Hourly Forecast

    MON13:00
    89°F
    Sunny
    Dewpoint:3.3°Precip:0%Humidity:17%Wind:5 mph N
    MON14:00
    91°F
    Sunny
    Dewpoint:3.3°Precip:0%Humidity:16%Wind:5 mph N
    MON15:00
    92°F
    Sunny
    Dewpoint:3.3°Precip:0%Humidity:15%Wind:5 mph N
    MON16:00
    92°F
    Sunny
    Dewpoint:3.9°Precip:0%Humidity:16%Wind:5 mph N
    TUE17:00
    91°F
    Sunny
    Dewpoint:4.4°Precip:0%Humidity:17%Wind:5 mph NE
    TUE18:00
    89°F
    Mostly Clear
    Dewpoint:5.6°Precip:0%Humidity:19%Wind:5 mph N
    TUE19:00
    83°F
    Mostly Clear
    Dewpoint:6.1°Precip:0%Humidity:24%Wind:0 mph
    TUE20:00
    80°F
    Mostly Clear
    Dewpoint:6.1°Precip:0%Humidity:27%Wind:5 mph N
    TUE21:00
    78°F
    Mostly Clear
    Dewpoint:5.6°Precip:0%Humidity:28%Wind:5 mph N
    TUE22:00
    75°F
    Mostly Clear
    Dewpoint:5.6°Precip:0%Humidity:31%Wind:5 mph N
    TUE23:00
    74°F
    Mostly Clear
    Dewpoint:5°Precip:0%Humidity:30%Wind:5 mph NW
    TUE00:00
    73°F
    Mostly Clear
    Dewpoint:5.6°Precip:0%Humidity:32%Wind:0 mph
    TUE01:00
    71°F
    Mostly Clear
    Dewpoint:5.6°Precip:0%Humidity:35%Wind:5 mph W
    TUE02:00
    71°F
    Mostly Clear
    Dewpoint:5.6°Precip:0%Humidity:34%Wind:0 mph
    TUE03:00
    70°F
    Mostly Clear
    Dewpoint:5°Precip:0%Humidity:35%Wind:5 mph NW
    TUE04:00
    69°F
    Mostly Clear
    Dewpoint:5°Precip:0%Humidity:36%Wind:0 mph
    TUE05:00
    69°F
    Mostly Clear
    Dewpoint:5°Precip:0%Humidity:36%Wind:5 mph NW
    TUE06:00
    69°F
    Sunny
    Dewpoint:4.4°Precip:0%Humidity:35%Wind:5 mph NW
    TUE07:00
    68°F
    Sunny
    Dewpoint:4.4°Precip:0%Humidity:36%Wind:5 mph NW
    TUE08:00
    71°F
    Sunny
    Dewpoint:5.6°Precip:0%Humidity:35%Wind:0 mph
    TUE09:00
    77°F
    Sunny
    Dewpoint:6.7°Precip:0%Humidity:31%Wind:0 mph
    TUE10:00
    84°F
    Sunny
    Dewpoint:7.2°Precip:0%Humidity:26%Wind:0 mph
    TUE11:00
    89°F
    Sunny
    Dewpoint:7.2°Precip:0%Humidity:22%Wind:0 mph
    TUE12:00
    92°F
    Sunny
    Dewpoint:6.1°Precip:0%Humidity:18%Wind:0 mph

    Extended Forecast

    Tonight

    Tue, Mar 17
    68°F
    Mostly Clear
    0 mph NW
    Precipitation: 0%
    Mostly clear, with a low around 68. Northwest wind 0 to 5 mph.

    Tuesday

    Tue, Mar 17
    98°F
    Sunny
    0 mph NW
    Precipitation: 0%
    Sunny, with a high near 98. Northwest wind 0 to 5 mph.

    Tuesday Night

    Wed, Mar 18
    69°F
    Clear
    0 mph SW
    Precipitation: 0%
    Clear, with a low around 69. Southwest wind 0 to 5 mph.

    Wednesday

    Wed, Mar 18
    96°F
    Sunny
    0 mph SW
    Precipitation: 0%
    Sunny, with a high near 96. Southwest wind 0 to 15 mph, with gusts as high as 25 mph.

    Wednesday Night

    Thu, Mar 19
    69°F
    Clear
    0 mph SW
    Precipitation: 0%
    Clear, with a low around 69.

    Thursday

    Thu, Mar 19
    97°F
    Sunny
    0 mph S
    Precipitation: 0%
    Sunny, with a high near 97.

    Thursday Night

    Fri, Mar 20
    69°F
    Clear
    0 mph NW
    Precipitation: 0%
    Clear, with a low around 69.

    Friday

    Fri, Mar 20
    98°F
    Sunny
    0 mph SW
    Precipitation: 0%
    Sunny, with a high near 98.

    Friday Night

    Sat, Mar 21
    66°F
    Clear
    0 mph W
    Precipitation: 0%
    Clear, with a low around 66.

    Saturday

    Sat, Mar 21
    92°F
    Sunny
    0 mph W
    Precipitation: 0%
    Sunny, with a high near 92.

    Saturday Night

    Sun, Mar 22
    63°F
    Partly Cloudy then Patchy Fog
    0 mph W
    Precipitation: 0%
    Patchy fog after 5am. Partly cloudy, with a low around 63.

    Sunday

    Sun, Mar 22
    87°F
    Patchy Fog then Partly Sunny
    0 mph SW
    Precipitation: 0%
    Patchy fog before 11am. Partly sunny, with a high near 87.

    Sunday Night

    Mon, Mar 23
    60°F
    Partly Cloudy then Patchy Fog
    0 mph NW
    Precipitation: 0%
    Patchy fog after 5am. Partly cloudy, with a low around 60.

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