10-Day Weather Forecast - Costa Mesa, CA

Partly cloudy. A slight chance of showers this afternoon. Highs around 68 at the beaches to 69 to 72 farther inland and near higher coastal terrain. Areas of winds south to 10 mph. . . Becoming 10 to 15 mph with gusts to 25 mph this afternoon. Chance of measurable precipitation 20 percent.

Cloudy with a chance of showers in the evening then partly cloudy overnight. Lows 52 to 55. Areas of winds northwest 10 to 15 mph. Chance of measurable precipitation 40 percent.

Partly cloudy. Highs 66 to 70. Areas of winds northwest 10 to 15 mph. Gusts to 25 mph in the afternoon.

Mostly clear. Lows 50 to 54. Areas of winds west 10 to 15 mph with gusts to 25 mph becoming southeast overnight.

Partly cloudy. Highs around 69 at the beaches to 71 to 74 farther inland and near higher coastal terrain. Areas of winds southeast 10 mph becoming southwest with gusts to 25 mph in the afternoon.

Partly cloudy. Lows 53 to 56.

Partly cloudy. Highs around 68 at the beaches to 69 to 73 farther inland and near higher coastal terrain.

Partly cloudy. Lows 53 to 56.

Mostly cloudy with a slight chance of showers in the morning then partly cloudy in the afternoon. Highs 65 to 69.

Partly cloudy. A slight chance of showers overnight. Lows 52 to 55.

Partly cloudy. Highs 65 to 70.

Partly cloudy. Lows 52 to 55.

Partly cloudy. Highs 66 to 71.

Partly cloudy. Low temperature around 57F. Dew point will be around 54F with an average humidity of 83%. Winds will be 3 mph from the SW.

Mostly cloudy. High temperature around 66F. Dew point will be around 54F with an average humidity of 70%. Winds will be 6 mph from the SW.

Clear. Low temperature around 58F. Dew point will be around 55F with an average humidity of 80%. Winds will be 3 mph from the W.

Mostly cloudy. High temperature around 68F. Dew point will be around 55F with an average humidity of 67%. Winds will be 5 mph from the SW.

Mostly clear. Low temperature around 59F. Dew point will be around 56F with an average humidity of 79%. Winds will be 3 mph from the W.