The National Weather Serice has issued a dense fog advisory for Charleston, Colleton and Dorchester counties that was in effect until 10 a.m.

Once the sun burns through the fog, today should be partly sunny, with patchy fog this morning. and a slight chance of showers and thunderstorms this afternoon.

The visibility could be as little as 1/4 mile or less at times this morning.

Highs today should be in the upper 80s, with northeast winds around 5 mph, becoming southeast this afternoon.

The chance of rain today is 20 percent.

Tonight will be partly cloudy, with a slight chance of showers and thunderstorms after midnight.

Lows will be in the mid 70s, with south winds 5 to 10 mph. The chance of rain is 20 percent.

Sunday is expected to be partly sunny, with a chance of showers and thunderstorms, mainly in the afternoon.

Highs should be in the upper 80s, with southwest winds 5 to 10 mph. The chance of rain Sunday is 40 percent.

Sunday night is forecast to be mostly cloudy with a slight chance of showers and thunderstorms.

Lows will be in the mid 70s, with southwest winds 5 to 10 mph with gusts up to 20 mph. The chance of rain Sunday night is 20 percent.

Looking ahead to Labor Day, it’s expected to be partly sunny with a chance of showers and thunderstorms. Highs will be in the upper 80s, with southwest winds 5 to 10 mph. The chance of rain 40 Monday is percent.