10-Day Weather Forecast - Fountain Valley, CA

Mostly cloudy with patchy fog in the morning. . . Becoming partly cloudy. Highs around 70. Light winds.

Partly cloudy. Patchy fog overnight. Lows around 52. Light winds.

Patchy fog in the morning. Mostly cloudy. Highs 69 to 72. Light winds.

Partly cloudy in the evening. . . Becoming mostly cloudy overnight with patchy fog. Lows around 51.

Patchy fog in the morning. Mostly cloudy. Highs around 70.

Partly cloudy in the evening. . . Becoming mostly cloudy. Lows 50 to 53.

Cloudy in the morning then mostly cloudy with a chance of rain in the afternoon. Highs around 68.

Rain likely in the evening then rain overnight. Rain may be heavy at times overnight. Lows around 55.

Rain. Rain may be heavy at times. Highs 63 to 66.

Rain. Rain may be heavy at times. Lows around 54.

Rain. Highs 64 to 67.

Mostly cloudy with probable rain. Chance of precipitation 80%. Low temperature around 51F. Dew point will be around 53F with an average humidity of 100%. Winds will be 3 mph from the S.

Partly cloudy with a chance of rain. Chance of precipitation 55%. High temperature around 57F. Dew point will be around 54F with an average humidity of 99%. Winds will be 3 mph from the SW.

Mostly clear with a chance of rain. Chance of precipitation 35%. Low temperature around 49F. Dew point will be around 48F with an average humidity of 92%. Winds will be 2 mph from the NE.

Sunny. High temperature around 57F. Dew point will be around 51F with an average humidity of 84%. Winds will be 3 mph from the NW.

Clear. Low temperature around 49F. Dew point will be around 42F with an average humidity of 73%. Winds will be 5 mph from the NE.

Sunny. High temperature around 59F. Dew point will be around 48F with an average humidity of 70%. Winds will be 4 mph from the N.

Mostly clear. Low temperature around 50F. Dew point will be around 41F with an average humidity of 66%. Winds will be 4 mph from the N.