10-Day Weather Forecast - Costa Mesa, CA

Mostly sunny. Warmer. Highs 82 to 87 at the beaches to 88 to 92 farther inland and near higher coastal terrain. Light winds becoming west 10 to 15 mph in the afternoon.

Mostly clear. Lows around 60. Areas of winds northwest to 10 mph in the evening becoming light.

Mostly sunny in the morning. . . Becoming partly cloudy. Highs 81 to 85 at the beaches to 87 to 91 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 around 58.

Mostly cloudy in the morning. . . Becoming partly cloudy. Highs 75 to 78 at the beaches to 80 to 84 farther inland and near higher coastal terrain.

Partly cloudy in the evening. . . Becoming mostly clear. Lows around 54.

Partly cloudy in the morning. . . Becoming mostly sunny. Highs 74 to 78 at the beaches to 79 to 84 farther inland and near higher coastal terrain.

Mostly clear. Lows around 55.

Partly cloudy in the morning. . . Becoming mostly sunny. Highs 77 to 81 at the beaches to 82 to 87 farther inland and near higher coastal terrain.

Mostly clear. Lows 55 to 58.

Partly cloudy in the morning. . . Becoming mostly sunny. Highs 77 to 82 at the beaches to 83 to 88 farther inland and near higher coastal terrain.

Clear. Low temperature around 63F. Dew point will be around 56F with an average humidity of 72%. Winds will be 3 mph from the S.

Sunny. High temperature around 81F. Dew point will be around 54F with an average humidity of 50%. Winds will be 4 mph from the SW.

Clear. Low temperature around 60F. Dew point will be around 57F with an average humidity of 75%. Winds will be 4 mph from the S.

Sunny. High temperature around 77F. Dew point will be around 54F with an average humidity of 53%. Winds will be 5 mph from the SW.

Clear. Low temperature around 59F. Dew point will be around 57F with an average humidity of 77%. Winds will be 4 mph from the S.

Sunny. High temperature around 76F. Dew point will be around 55F with an average humidity of 56%. Winds will be 5 mph from the SW.

Clear. Low temperature around 58F. Dew point will be around 57F with an average humidity of 81%. Winds will be 3 mph from the S.