10-Day Weather Forecast - Costa Mesa, CA

Partly cloudy with patchy fog in the morning. . . Becoming mostly sunny. Local visibility one quarter mile or less at times in the morning. Highs 70 to 73 at the beaches to 74 to 77 farther inland and near higher coastal terrain. Light winds.

Mostly clear in the evening. . . Becoming partly cloudy. Lows 52 to 55. Light winds.

Partly cloudy. Highs around 68 at the beaches to 71 to 74 farther inland and near higher coastal terrain. Light winds.

Partly cloudy. Lows around 53. Light winds.

Mostly cloudy in the morning. . . Becoming partly cloudy. Highs around 65 at the beaches to 69 farther inland and near higher coastal terrain.

Partly cloudy in the evening. . . Becoming mostly cloudy overnight with patchy fog. Lows around 53.

Cloudy in the morning. . . Becoming partly cloudy. Patchy fog in the morning. Highs around 66 at the beaches to 70 farther inland and near higher coastal terrain.

Partly cloudy in the evening. . . Becoming mostly cloudy overnight with patchy fog. Lows 52 to 55.

Cloudy in the morning. . . Becoming mostly cloudy. Patchy fog in the morning. Highs 65 to 70.

Partly cloudy in the evening. . . Becoming mostly cloudy. Lows 51 to 54.

Cloudy in the morning then mostly cloudy with a slight chance of showers in the afternoon. Highs 64 to 68.

Mostly cloudy with a chance of showers. Lows around 54.

Showers likely. Highs 64 to 68.

Cloudy with likely rain. Chance of precipitation 90%. Low temperature around 48F. Dew point will be around 50F with an average humidity of 100%. Winds will be 8 mph from the S.

Cloudy with probable rain. Chance of precipitation 80%. High temperature around 52F. Dew point will be around 51F with an average humidity of 100%. Winds will be 4 mph from the SW.

Cloudy with a chance of rain. Chance of precipitation 60%. Low temperature around 46F. Dew point will be around 48F with an average humidity of 100%. Winds will be 3 mph from the SW.

Mostly sunny with a chance of rain. Chance of precipitation 35%. High temperature around 52F. Dew point will be around 48F with an average humidity of 93%. Winds will be 2 mph from the S.

Clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 44F. Dew point will be around 46F with an average humidity of 95%. Winds will be 2 mph from the NE.