A band of fog stretches above the setting sun as a surfer catches a wave near the Pismo Beach Pier.
Fog will deepen overnight and cloud the coast and even move inland this morning, said local forecaster John Lindsey.
The overcast will cool temperatures significantly, with highs in San Luis Obispo today and Friday falling into the upper 60s. Paso Robles will have highs in the upper 80s today, then the high 70s on Friday.
The weekend will be much of the same.