After a day in which heat indices spiked to 117° at Mt. Pleasant, we should see another round of hot weather on Tuesday, though perhaps not to the extremes we saw on Monday with somewhat lower dewpoints behind a stalling front. Still, heat indices could approach 110° especially near the coast, and another Heat Advisory might be coming down the pike as a result.

Another thunderstorm complex will move across the South on Tuesday, and could bring some impacts to our nook of the Lowcountry in the evening hours. A lot will depend on how far south the front ultimately gets. For now, the best risk of severe weather looks displaced to the south of the Charleston metro, but we’ll want to keep an eye on this as the day goes on in case things change.

Thursday should be generally quiet across the metro area for the vast majority of the day as dry air characterized by dewpoints in the mid-60s — about as good as it gets at this point in the year — hang around for one more day. Expect the day to start in the low 70s once again with highs warming to the upper 80s in the afternoon. Clouds will be on the increase throughout the day as a disturbance approaches, with a slight chance of showers after sunset, but again, the vast majority if not all of us get Thursday in rain-free.

We start August with a relatively “cool” day, at least in contrast to that second half of July we just had, anyway. We start the day in the low 70s before temperatures head to the upper 80s in the afternoon. A little drier air will be mixing in, but it’ll still be humid enough to get heat indices into the mid-90s. Still, though, this is what passes for improvement at this time of year.

A few thunderstorms will be possible in the afternoon, though we shouldn’t see the high coverage that we’ve seen the past two nights. The risk for severe weather is a little lower, too.

The main fly in the ointment on Tuesday evening will be tidal flooding; high tide around 8:43 PM should top out around 7.3-7.5′ in the harbor, producing minor to moderate coastal flooding and likely causing some road closures, which were observed with Monday evening’s 7.52′ high tide. Be ready to route around flooding if you have plans downtown Tuesday evening.

The brief interlude away from the mid-90s air temperatures that have punctuated a fair bit of July will end Sunday as a tropical low and its associated showers and thunderstorms moves away. We’ll start the day in the mid-70s before highs top out in the mid-90s in the afternoon; mix in humidity and we should see heat indices around 105-106° around peak heating.

Scattered showers and thunderstorms should fire later in the afternoon into the evening hours and head coastward within northwest flow. A storm or two could get strong enough to produce a damaging wind gust or two, so we’ll want to watch that potential closely. Not everyone will see rain and storms, but if you do, be ready to move outdoor activities inside.

Standard late-July weather continues for Thursday. We’ll see primarily partly cloudy skies across the area with highs topping out in the low 90s ahead of the seabreeze. Heat indices should top out around 103° or so, with some locally higher values closer to the coast possible for a brief time as the seabreeze moves inland. Said seabreeze should be responsible for a few showers and thunderstorms during the afternoon hours, moving inland with time. Some locally heavy rainfall and gusty winds will be possible in the strongest storms, but they shouldn’t last terribly long at any one location.

Tuesday’s forecast looks relatively benign across the area as partly cloudy skies dominate thanks to increasingly drier air aloft. We’ll start the day in the low 70s away from the coast before highs top out in the low-to-mid-90s in the afternoon. Heat indices should top out in the low 100s with low-70s dewpoints across the area. A shower or storm can’t be ruled out along the seabreeze, but most of us should get Tuesday in rain-free.

Standard July warmth and mugginess will continue on Sunday. We’ll start the day in the mid-70s under partly cloudy skies, and we should get the first part of the day in rain-free. From there, we’ll start to see showers and thunderstorms develop by mid-afternoon and make their way into the area from the west and southwest throughout the rest of the evening. The strongest storms could produce strong wind gusts, while heavy rain and frequent lightning will be more widespread concerns. Be ready to bring outdoor activities inside if thunderstorms approach.

Thursday is going to be another hot day across the area. Expect to start the day just barely below 80° inland and likely a couple degrees above it closer to the coast. We’ll warm back into the mid-90s during the day, and with dewpoints not mixing out quite as much — expect them to hang around in the mid-70s — we should see heat indices peak around 110° or so in the afternoon. This is certainly well into the danger zone for heat illness, so please do take it easy if you must be outside. There’s no Heat Advisory as of this writing, but don’t be surprised if one is issued by morning.

Attention then turns to the potential for showers and thunderstorms to move into the area in the afternoon and evening courtesy of a disturbance rounding a retreating ridge of high pressure. Most of these storms should be efficient rainfall and lightning producers, and a few of these storms could be on the strong side with damaging wind gusts the main concern. Hail can’t be ruled out, either. Stay alert to rapidly changing conditions as we get into tomorrow afternoon and evening, and don’t be surprised if there are evening commute impacts.

Fortunately, wildfire smoke will play much less of a role in Thursday’s weather as it continues to disperse southward.

We begin a rather hot stretch of weather — yes, even warmer than we’ve been — starting Tuesday as ridging builds aloft. Downslope flow from the northwest will act to warm the air as it sinks as well as help to keep the seabreeze pinned closer to the coast, which will help drive air temperatures well into the mid-to-upper 90s across the area after an already warm start in the upper 70s to around 80° at the coast. Mix in humidity and you’ll find heat indices across the area ranging from about 105-110° during the height of the afternoon. We’ll be in this heat index “danger zone” for a few days, so be sure to take it easy if you have to be outdoors during this time, and get lots and lots of water.

As the ridge builds aloft, this will also help to put a lid on afternoon thunderstorms for the most part; a shower or storm can’t be totally ruled out, but don’t count on one for any sort of heat relief.

Finally, Canadian wildfire smoke will add a milky haze to the overall sky composition. Upstream observations suggest that there could be some minor air quality impacts, but so far no major issues are anticipated. Stay tuned, though.

Expect one more generally quiet weather day on Thursday (though a shower or storm can’t be ruled out in the afternoon, especially further inland) before things turn more unsettled as a trough digs in for Friday and the weekend.