Expect sunny skies across the Lowcountry this morning, but keep an umbrella handy in the evening as there will is a chance of thunderstorms, the National Weather Service predicts.

Highs will be in the low 90s and lows in the upper 70s, with heat index readings up to 105. Southwest winds will be from 10 to 15 mph.

Chance of rain is 30 percent. Wednesday: Partly cloudy with a slight chance of showers and thunderstorms. Highs will be in the mid 90s and lows in the upper 70s. Chance of rain is 20 percent.

Thursday: Partly cloudy with a slight chance of showers and thunderstorms. Highs will be in the mid 90s and lows in the upper 70s, with heat index readings up to 108. Chance of rain is 20 percent.