Forecast

    Forecast for Fountain Valley, CA | Forecast Periods: 14
    Monday
    Mar 16
    2026

    Fountain Valley, CA

    Updated: 11:05 AM PDT

    78°F

    Sunny

    5 mph W
    Precipitation: 0%

    Sunny, with a high near 78. West wind 5 to 10 mph.

    Hourly Forecast

    MON14:00
    78°F
    Sunny
    Dewpoint:13.3°Precip:0%Humidity:48%Wind:5 mph W
    MON15:00
    77°F
    Sunny
    Dewpoint:13.3°Precip:0%Humidity:48%Wind:10 mph W
    MON16:00
    78°F
    Sunny
    Dewpoint:13.9°Precip:0%Humidity:49%Wind:10 mph W
    TUE17:00
    76°F
    Sunny
    Dewpoint:13.3°Precip:0%Humidity:50%Wind:5 mph W
    TUE18:00
    74°F
    Mostly Clear
    Dewpoint:13.3°Precip:0%Humidity:53%Wind:5 mph W
    TUE19:00
    70°F
    Mostly Clear
    Dewpoint:13.3°Precip:0%Humidity:61%Wind:5 mph W
    TUE20:00
    68°F
    Clear
    Dewpoint:13.9°Precip:0%Humidity:69%Wind:5 mph W
    TUE21:00
    66°F
    Clear
    Dewpoint:13.9°Precip:0%Humidity:74%Wind:0 mph
    TUE22:00
    64°F
    Clear
    Dewpoint:14.4°Precip:0%Humidity:80%Wind:0 mph
    TUE23:00
    63°F
    Mostly Clear
    Dewpoint:13.9°Precip:0%Humidity:82%Wind:5 mph SW
    TUE00:00
    62°F
    Mostly Clear
    Dewpoint:13.9°Precip:0%Humidity:83%Wind:5 mph SW
    TUE01:00
    60°F
    Mostly Clear
    Dewpoint:13.9°Precip:0%Humidity:88%Wind:0 mph
    TUE02:00
    60°F
    Partly Cloudy
    Dewpoint:13.3°Precip:0%Humidity:87%Wind:0 mph
    TUE03:00
    60°F
    Partly Cloudy
    Dewpoint:12.8°Precip:0%Humidity:84%Wind:0 mph
    TUE04:00
    59°F
    Partly Cloudy
    Dewpoint:12.2°Precip:0%Humidity:86%Wind:0 mph
    TUE05:00
    58°F
    Partly Cloudy
    Dewpoint:12.2°Precip:0%Humidity:85%Wind:0 mph
    TUE06:00
    58°F
    Mostly Sunny
    Dewpoint:11.7°Precip:0%Humidity:82%Wind:0 mph
    TUE07:00
    58°F
    Mostly Sunny
    Dewpoint:11.1°Precip:0%Humidity:80%Wind:0 mph
    TUE08:00
    59°F
    Mostly Sunny
    Dewpoint:11.1°Precip:0%Humidity:77%Wind:0 mph
    TUE09:00
    67°F
    Mostly Sunny
    Dewpoint:12.2°Precip:0%Humidity:64%Wind:0 mph
    TUE10:00
    75°F
    Mostly Sunny
    Dewpoint:12.8°Precip:0%Humidity:50%Wind:0 mph
    TUE11:00
    82°F
    Sunny
    Dewpoint:13.3°Precip:0%Humidity:40%Wind:5 mph SW
    TUE12:00
    86°F
    Sunny
    Dewpoint:12.8°Precip:0%Humidity:34%Wind:5 mph W
    TUE13:00
    89°F
    Sunny
    Dewpoint:12.2°Precip:0%Humidity:31%Wind:5 mph W

    Extended Forecast

    Tonight

    Tue, Mar 17
    58°F
    Mostly Clear
    0 mph W
    Precipitation: 0%
    Mostly clear, with a low around 58. West wind 0 to 5 mph.

    Tuesday

    Tue, Mar 17
    90°F
    Sunny
    0 mph W
    Precipitation: 0%
    Sunny, with a high near 90. West wind 0 to 10 mph.

    Tuesday Night

    Wed, Mar 18
    58°F
    Mostly Clear
    0 mph SW
    Precipitation: 0%
    Mostly clear, with a low around 58. Southwest wind 0 to 10 mph.

    Wednesday

    Wed, Mar 18
    87°F
    Sunny
    0 mph SW
    Precipitation: 0%
    Sunny, with a high near 87. Southwest wind 0 to 10 mph.

    Wednesday Night

    Thu, Mar 19
    58°F
    Mostly Clear
    0 mph SW
    Precipitation: 0%
    Mostly clear, with a low around 58.

    Thursday

    Thu, Mar 19
    85°F
    Sunny
    0 mph W
    Precipitation: 0%
    Sunny, with a high near 85.

    Thursday Night

    Fri, Mar 20
    59°F
    Mostly Clear
    0 mph SW
    Precipitation: 0%
    Mostly clear, with a low around 59.

    Friday

    Fri, Mar 20
    85°F
    Sunny
    0 mph W
    Precipitation: 0%
    Sunny, with a high near 85.

    Friday Night

    Sat, Mar 21
    58°F
    Mostly Clear
    0 mph SW
    Precipitation: 0%
    Mostly clear, with a low around 58.

    Saturday

    Sat, Mar 21
    81°F
    Mostly Sunny
    0 mph S
    Precipitation: 0%
    Mostly sunny, with a high near 81.

    Saturday Night

    Sun, Mar 22
    57°F
    Patchy Fog
    0 mph S
    Precipitation: 0%
    Patchy fog between 11pm and 5am. Mostly cloudy, with a low around 57.

    Sunday

    Sun, Mar 22
    77°F
    Partly Sunny
    0 mph S
    Precipitation: 0%
    Partly sunny, with a high near 77.

    Sunday Night

    Mon, Mar 23
    56°F
    Mostly Cloudy
    0 mph S
    Precipitation: 0%
    Mostly cloudy, with a low around 56.

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