Costa Mesa, CA Weather - Extended Forecast

Friday

Slight chance of thunderstorms

High:
78°F

A slight chance of showers and thunderstorms. Mostly cloudy, then gradually becoming sunny, with a high near 78. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

Friday Night

Partly cloudy

Overnight low:
66°F

Partly cloudy, with a low around 66.

Saturday

Mostly sunny

High:
79°F

Mostly sunny, with a high near 79.

Saturday Night

Mostly clear

Overnight low:
65°F

Mostly clear, with a low around 65.

Sunday

Mostly sunny

High:
80°F

Sunday Night

Partly cloudy

Overnight low:
67°F

Monday

Mostly sunny

High:
82°F

Monday Night

Patchy fog

Overnight low:
68°F

Tuesday

Patchy fog

High:
80°F