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Fountain Valley, California

Current conditions and the National Weather Service 7-day forecast for Fountain Valley, California — temperature, rain chance, wind, radar and active alerts.

Saturday Oct 3: a high near 99°F and a low around 77°F. Highs over the period run 88°F to 99°F.

National Weather Service forecast for Fountain Valley, California
DayHighLowPrecip
Saturday Oct 399°77°—
Sunday Oct 498°76°—
Monday Oct 597°76°—
Tuesday Oct 693°75°—
Wednesday Oct 792°73°—
Thursday Oct 891°72°—
Friday Oct 988°——

NOAA NWS NDFD 2.5 km, run 2026-10-03 15:00 UTC · days are local time in America/Los Angeles. The live page updates continuously.

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