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City of Fountain Valley, CAFountain Valley, CA 7-Day Night Weather Forecast
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Fountain Valley, CA Weather Forecast
Fountain Valley, CA Weather Forecast Date: 1210 AM PDT Tue Oct 27 2026
The area/counties/county of: Orange County Coastal Areas, including the cities of: Huntington Beach, Costa Mesa, Newport Beach, Laguna Beach, and San Clemente.or toggle through each period.
Today... Partly cloudy with patchy fog this morning...Becoming mostly sunny. Highs around 72 at The beaches to 73 to 76 farther inland and near higher coastal terrain. Light winds becoming south 10 mph this afternoon.
Tonight... Partly cloudy in the evening...Becoming mostly cloudy overnight with patchy fog. Lows 55 to 59. Light winds.
Wednesday... Mostly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs around 71 at The beaches to 72 to 75 farther inland and near higher coastal terrain. Light winds becoming south 10 mph in the afternoon.
Wednesday Night... Partly cloudy in the evening...Becoming mostly cloudy. Lows 57 to 61. Light winds.
Thursday... Mostly cloudy. Highs 71 to 74. Light winds becoming southwest 10 mph in the afternoon.
Thursday Night... Partly cloudy in the evening...Becoming mostly cloudy. Lows 59 to 63.
Friday... Mostly cloudy in the morning...Becoming partly cloudy. A slight chance of showers. Highs 69 to 72.
Friday Night... Partly cloudy. A slight chance of showers in the evening, then a chance of showers overnight. Lows around 60.
Saturday... Mostly cloudy with a chance of showers. Highs 66 to 69.
Saturday Night... Showers likely. Lows 56 to 59.
Sunday... Mostly cloudy with a chance of showers. Highs around 70.
Sunday Night... Partly cloudy. A slight chance of showers in the evening. Lows 54 to 58.
POP = Probability of Precipitation
Fountain Valley Radar Loop
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