Rain and severe thunderstorms are possible this afternoon and tonight.

Temperatures are expected to reach 86 degrees this afternoon.

The National Weather Service in Charleston reports that scattered showers and thunderstorms will develop from the northwest. Some of the storms could become severe with large hail and damaging winds. There is also a risk of isolated tornadoes.

The risk for severe thunderstorms will be greatest from about 3 p.m. to midnight in the Charleston, Savannah and Beaufort metro areas.

There is a 40 percent chance of rain today and a 50 percent chance tonight. Rainfall tonight may be between a quarter-inch and half of an inch.

There’s also a 30 percent chance of showers and thunderstorms Wednesday, with temperatures expected to reach about 78 degrees. Thursday is expected to be partly sunny with a high near 77.

The beginning of the moist summertime weather pattern coupled with a still-strong jet stream is creating the possibility for thunderstorm development.