Costa Mesa, CA Weather - Extended Forecast

Thursday

Patchy fog

High:
74°F

Patchy fog before 11am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming southwest around 5 mph in the afternoon.

Thursday Night

Patchy fog

Overnight low:
58°F

Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 58.

Friday

Patchy fog

High:
72°F

Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 72.

Friday Night

Patchy fog

Overnight low:
57°F

Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 57.

Saturday

Patchy fog

High:
72°F

Saturday Night

Patchy fog

Overnight low:
58°F

Sunday

Patchy fog

High:
72°F

Sunday Night

Clouds increasing

Overnight low:
58°F

Monday

Clouds clearing

High:
69°F