10-Day Weather Forecast - Fountain Valley, CA

Mostly cloudy this morning. . . Becoming partly cloudy. Patchy fog this morning. Local visibility one quarter mile or less at times this morning. Highs around 69. Light winds.

Partly cloudy in the evening. . . Becoming mostly cloudy overnight with patchy fog. Lows 49 to 52. Light winds.

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

Partly cloudy in the evening. . . Becoming mostly cloudy overnight with patchy fog. Lows around 50. Light winds.

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

Mostly cloudy. Patchy fog overnight. Lows 50 to 53.

Patchy fog in the morning. Cloudy in the morning then mostly cloudy with a chance of rain in the afternoon. Highs around 67.

Rain likely in the evening then rain overnight. Rain may be heavy at times overnight. Lows 55 to 58.

Rain. Rain may be heavy at times. Highs 65 to 69.

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

Showers. Locally heavy rainfall possible in the morning. Highs around 65.

Showers. Lows 50 to 53.

Showers likely. Highs around 63.

Partly cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 50F. Dew point will be around 50F with an average humidity of 96%. Winds will be 3 mph from the NE.

Sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 57F. Dew point will be around 50F with an average humidity of 84%. Winds will be 3 mph from the NE.

Clear. Low temperature around 50F. Dew point will be around 43F with an average humidity of 74%. Winds will be 6 mph from the NE.

Sunny. High temperature around 59F. Dew point will be around 47F with an average humidity of 69%. Winds will be 6 mph from the NE.

Clear. Low temperature around 51F. Dew point will be around 41F with an average humidity of 64%. Winds will be 7 mph from the NE.

Sunny. High temperature around 61F. Dew point will be around 48F with an average humidity of 66%. Winds will be 4 mph from the NE.

Clear. Low temperature around 53F. Dew point will be around 43F with an average humidity of 65%. Winds will be 5 mph from the NE.