10-Day Weather Forecast - Costa Mesa, CA

Mostly cloudy with patchy fog in the morning. . . Becoming partly cloudy. Highs around 71 at the beaches to 74 to 77 farther inland and near higher coastal terrain. Light winds becoming south 10 mph in the afternoon.

Partly cloudy in the evening. . . Becoming mostly cloudy. Lows 56 to 59. Light winds.

Cloudy. Highs 68 to 73. Areas of winds south 10 mph.

Cloudy. A slight chance of showers overnight. Lows around 57. Areas of winds southwest to 10 mph in the evening becoming light. Chance of measurable precipitation 20 percent.

Mostly cloudy in the morning. . . Becoming partly cloudy. Highs around 70 at the beaches to 72 farther inland and near higher coastal terrain.

Mostly clear in the evening. . . Becoming partly cloudy. Lows around 55.

Mostly cloudy in the morning. . . Becoming partly cloudy. Highs 66 to 71.

Partly cloudy. Lows around 52.

Partly cloudy. Highs 70 to 75.

Mostly clear. Lows around 54.

Mostly sunny. Highs around 74 at the beaches to 80 farther inland and near higher coastal terrain.

Mostly clear. Lows around 55.

Mostly sunny. Highs around 76 at the beaches to 80 to 83 farther inland and near higher coastal terrain.

Clear. Low temperature around 58F. Dew point will be around 53F with an average humidity of 72%. Winds will be 3 mph from the W.

Sunny. High temperature around 69F. Dew point will be around 54F with an average humidity of 65%. Winds will be 6 mph from the SW.

Clear. Low temperature around 57F. Dew point will be around 54F with an average humidity of 81%. Winds will be 3 mph from the SW.

Sunny. High temperature around 68F. Dew point will be around 54F with an average humidity of 69%. Winds will be 5 mph from the SW.

Clear. Low temperature around 57F. Dew point will be around 55F with an average humidity of 82%. Winds will be 2 mph from the SW.