10-Day Weather Forecast - Fountain Valley, CA

Mostly cloudy with patchy fog in the morning. . . Becoming sunny. Highs around 80. Light winds becoming southwest 10 mph in the afternoon.

Mostly clear in the evening. . . Becoming partly cloudy overnight with patchy fog. Lows 56 to 63. Areas of winds southwest to 10 mph in the evening becoming light.

Mostly cloudy with patchy fog in the morning. . . Becoming mostly sunny. Highs around 80 towards the coast to 81 farther inland. Light winds becoming southwest 10 mph in the afternoon.

Mostly clear in the evening. . . Becoming mostly cloudy overnight with patchy fog. Lows 58 to 64.

Mostly cloudy with patchy fog in the morning. . . Becoming mostly sunny. Highs around 80 towards the coast to 83 farther inland.

Clear in the evening. . . Becoming partly cloudy overnight with patchy fog. Lows 58 to 64.

Partly cloudy with patchy fog in the morning. . . Becoming mostly sunny. Highs 80 to 83 towards the coast to 85 farther inland.

Mostly clear in the evening. . . Becoming partly cloudy overnight with patchy fog. Lows 60 to 65.

Partly cloudy with patchy fog in the morning. . . Becoming mostly sunny. Highs 82 to 86 towards the coast to 87 farther inland.

Mostly clear in the evening. . . Becoming partly cloudy overnight with patchy fog. Lows 63 to 66.

Partly cloudy with patchy fog in the morning. . . Becoming mostly sunny. Highs 84 to 89 towards the coast to 89 to 92 farther inland.

Partly cloudy. Low temperature around 69F. Dew point will be around 56F with an average humidity of 55%. Winds will be 4 mph from the SW.

Sunny. High temperature around 81F. Dew point will be around 67F with an average humidity of 71%. Winds will be 6 mph from the SW.

Clear. Low temperature around 68F. Dew point will be around 63F with an average humidity of 77%. Winds will be 4 mph from the SW.

Sunny. High temperature around 78F. Dew point will be around 66F with an average humidity of 71%. Winds will be 6 mph from the SW.

Clear. Low temperature around 68F. Dew point will be around 63F with an average humidity of 76%. Winds will be 4 mph from the SW.

Sunny. High temperature around 77F. Dew point will be around 65F with an average humidity of 71%. Winds will be 6 mph from the SW.

Clear. Low temperature around 67F. Dew point will be around 62F with an average humidity of 77%. Winds will be 4 mph from the SW.