10-Day Weather Forecast - Costa Mesa, CA

Partly cloudy with patchy fog in the morning. . . Becoming mostly sunny. Highs 72 to 75 at the beaches to 76 to 79 farther inland and near higher coastal terrain. Light winds becoming west 10 mph in the afternoon.

Mostly clear. Lows 50 to 56. Areas of winds north to 10 mph.

Mostly sunny. Highs 78 to 82 at the beaches to 83 to 86 farther inland and near higher coastal terrain. Areas of winds northeast to 10 mph becoming west in the afternoon.

Mostly clear. Lows 54 to 57. Areas of winds east to 10 mph.

Partly cloudy. Highs 71 to 75 at the beaches to 75 to 80 farther inland and near higher coastal terrain.

Mostly cloudy. Lows around 55.

Mostly cloudy in the morning. . . Becoming partly cloudy. Highs 68 to 72.

Partly cloudy in the evening. . . Becoming mostly cloudy. Lows around 53.

Partly cloudy. Highs around 68 at the beaches to 69 to 72 farther inland and near higher coastal terrain.

Mostly clear. Lows around 52.

Partly cloudy in the morning. . . Becoming mostly sunny. Highs around 69 at the beaches to 70 to 73 farther inland and near higher coastal terrain.

Mostly clear in the evening. . . Becoming partly cloudy. Lows around 52.

Mostly cloudy in the morning. . . Becoming partly cloudy. Highs 67 to 71.

Mostly clear. Low temperature around 51F. Dew point will be around 51F with an average humidity of 83%. Winds will be 4 mph from the S.

Mostly sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 62F. Dew point will be around 49F with an average humidity of 70%. Winds will be 4 mph from the S.

Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 46F. Dew point will be around 47F with an average humidity of 90%. Winds will be 4 mph from the S.

Mostly cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 58F. Dew point will be around 46F with an average humidity of 73%. Winds will be 4 mph from the S.

Partly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 45F. Dew point will be around 46F with an average humidity of 91%. Winds will be 4 mph from the SE.