10-Day Weather Forecast - Fountain Valley, CA

Partly cloudy in the morning. . . Becoming mostly sunny. Highs around 74 towards the coast to 75 to 78 farther inland. Areas of winds east to 10 mph in the morning becoming light.

Mostly clear in the evening. . . Becoming partly cloudy overnight with patchy fog. Lows 49 to 52. Light winds.

Patchy fog in the morning. Partly cloudy. Highs around 71. Light winds.

Mostly cloudy. Patchy fog overnight. Local visibility one quarter mile or less at times overnight. Lows around 52. Light winds.

Mostly cloudy with patchy fog in the morning. . . Becoming partly cloudy. A slight chance of showers. Local visibility one quarter mile or less at times in the morning. Highs 65 to 68.

Partly cloudy. Lows around 51.

Partly cloudy. Highs 65 to 68.

Partly cloudy. Lows around 50.

Partly cloudy. Highs 68 to 72.

Mostly clear. Lows around 49.

Partly cloudy. Highs 71 to 74.

Partly cloudy. Lows around 50.

Partly cloudy. Highs 72 to 75.

Mostly clear. Low temperature around 48F. Dew point will be around 50F with an average humidity of 91%. Winds will be 2 mph from the NE.

Mostly sunny. High temperature around 67F. Dew point will be around 54F with an average humidity of 72%. Winds will be 3 mph from the W.

Mostly clear. Low temperature around 49F. Dew point will be around 50F with an average humidity of 88%. Winds will be 2 mph from the NE.

Partly cloudy. High temperature around 68F. Dew point will be around 54F with an average humidity of 73%. Winds will be 2 mph from the W.

Partly cloudy. Low temperature around 49F. Dew point will be around 51F with an average humidity of 92%. Winds will be 2 mph from the NE.