Another hot and humid day awaits for Wednesday, then a bit of drier air filters in to take the edge off the heat ever so slightly to close out the work week and the month of July.

The weather story this week thus far has been the extremely warm and muggy mornings. This morning was no exception — downtown has, thus far, only dropped to 84° while the airport’s low is 80°. If these lows hold, they would break the record warm low temperature downtown and tie it at the airport. These warm lows will continue for the rest of the work week, which will not allow much relief from the mid-90s heat during the day.

Tuesday looks similar to Monday, with temperatures warming into the low-to-mid-90s in the afternoon after another sultry start in the upper 70s to low 80s. Heat indices inland will run in the low 100s, but may push 108° as we get closer to the coast and the higher-dewpoint air. Southerly winds will continue to be breezy, with gusts pushing 30 MPH at times midday.

The pattern turns a little more settled as high pressure builds back in aloft. As a result, we will see more sunshine as the week progresses, though with that will come warmer temperatures, too, which could push Heat Advisory thresholds in spots.

Showers and thunderstorms will feature prominently in the forecast on Tuesday as they develop around a stalled boundary lingering to the south. Periods of heavy rain will be possible, and an area or two of freshwater flooding can’t be totally ruled out. However, severe weather is unlikely, and this will largely be a beneficial rainfall event. Even better, highs should peak below 90° for the first time since June 24. So, even though there will be rain, it’ll be awfully nice to not be baking.

The main flooding concern arrives with the evening high tide; minor to moderate coastal flooding will be possible between 7-10 PM. We’ll need to monitor where the rain is carefully; any rain that coincides will cause issues downtown.

Dangerous heat and humidity continues across the Lowcountry as we get into the second half of the work week with fewer opportunities for relief from thunderstorms.

The heat wave continues Tuesday with another hot and humid day on tap, followed by a scattering of afternoon thunderstorms. We’ll start in the upper 70s inland to low 80s near the coast and downtown, warming to the mid-90s in the afternoon. Dewpoints in the mid-70s will drive heat indices toward 108-110°. Another Heat Advisory will be in effect for Charleston and Berkeley counties as a result. Further inland toward Dorchester, dewpoints should be ever so slightly low enough to stay out of Heat Advisory criteria, but it’s still going to be plenty hot.

From there, a few thunderstorms should fire along and ahead of the seabreeze. Storm motions should be a little more coastward, so keep an eye out at the beaches for possible thunderstorms. A stray severe storm is not out of the question, with damaging wind gusts and hail to the size of quarters possible.

High pressure remains the primary weather driver at the surface and aloft for the rest of the work week, keeping temperatures toasty. Northeast flow over the next couple days, though, helps to bring in some drier air, which will keep heat indices from popping off too much. Wednesday starts in the low-to-mid-70s, with temperatures warming into the low to mid-90s in the afternoon under generally partly cloudy skies. The aforementioned stacked high pressure and influx of drier air will keep convection to a minimum.

High pressure wedging southward into the Lowcountry and the resulting northeasterly flow will take a slight edge off the heat for Tuesday after another day in the mid-90s on Monday. It’ll still be a steamy start, though, and the low of 78° will get awfully close to the record warm low temperature of 79° set in 2024. We’ll warm into the low 90s in the afternoon, but dewpoints running in the low to mid-70s will drive the heat index into the upper 90s (standing in contrast to the mid-100s we’ve felt the past few days). High pressure ridging in aloft will put a lid on thunderstorm activity, though some of the convection-allowing models still try to squeeze out a few showers in the afternoon. Rain is highly unlikely, though, so don’t count on it.

Generally normal summer weather continues for the rest of the work week, with a bit of an uptick in temperature as we head into Friday and the weekend.