It must be June: Scattered showers and thunderstorms return to today’s forecast with temperatures topping out in the mid-to-upper 80s. Today’s storms look to kick off along the seabreeze perhaps as early as 1-2 PM, with the likeliest corridor of heavy rain to remain between I-95 and US-17. A couple storms could briefly turn severe with wet microbursts the primary concern, particularly where outflow boundaries intersect. So far, overnight model data do not favor a repeat of last night’s deluge in Downtown Charleston, but we will need to see how things ultimately evolve this afternoon. Keep rain gear handy and be ready to move outdoor activities indoors — in other words, pretty much standard for this time of year.

Scattered showers and thunderstorms return to the weather picture on Thursday. We should see a little greater coverage of storms than we saw today given weakening high pressure at the surface and even more robust moisture in place. Temperatures once again will only top out in the mid-80s with showers and storms in the area after a mild start in the 70s. Convective temperatures look fairly low — model soundings generally suggest around 80° — so we should see showers begin to initiate within 2-3 hours of sunrise. Storm motions will be inland, and we should see a break in the rain closer to the coast in the late afternoon/early evening hours as the seabreeze makes its westward progression. With any luck, we’ll get more much-needed rainfall across even more of the area than we saw today.

We’ll have more chances for beneficial rainfall tomorrow across the Lowcountry as scattered showers and even a few thunderstorms will be possible for much of the day. Onshore flow and storms in the area will keep high temperatures down into the low 80s. No severe weather is expected, just more much-needed rain. Not everyone will see rain, and it won’t rain all the time. If you miss out tomorrow, rain chances continue to head up as we get into Thursday and Friday, so chances are good you’ll see something as the pattern turns wetter across the area.

We’ll get June off to an increasingly rainy start as the dry high pressure which brought us two incredible days this weekend begins to break down. Expect to get much of Tuesday in rain-free, but a few showers will be possible in the afternoon and evening hours as a coastal trough begins to sharpen nearby and moisture begins to peek ashore. As we get into Wednesday, more moisture will overspread the area and shower and storm coverage will kick up a little bit. We’ll see this pattern persist into Thursday and Friday, with afternoon showers and storms becoming more likely each day, bringing some more much-needed rainfall to the area. If you didn’t get much with Saturday evening’s activity, you’ll more likely than not have some measurable rainfall by the end of the week.

High temperatures will remain at or ever-so-slightly below normal through the work week thanks to onshore flow and expected afternoon showers and thunderstorms. Lows will be creeping back toward 70° with the increasingly humid airmass in place. With June 1 marking the beginning of meteorological summer, it will be as if the humidity will be right on cue.

We will commemorate Memorial Day and close out May with picture-perfect weather. Lows will run 5-10° below normal away from the immediate coast, warming nicely into the low 80s under mostly sunny skies as high pressure remains in control over the Southeast. Onshore flow will keep temperatures cooler closer to the coast, with upper 70s likely as high as we get there. Humidity will be comfortable with dewpoints in the mid-50s, too. As we know, this is increasingly rare air for this time of year, so be sure to take advantage as the rest of the work week turns a little warmer and increasingly unsettled.

We’ll be back in the 90s today — perhaps for the last day for a little while — as the lingering effects of high pressure aloft remain for one more day before a front moves into the area on Saturday. Unlike yesterday, an earlier seabreeze progression will keep highs capped around 90-91°. (Yesterday’s high was 94°, tying Monday for warmest so far in 2021.) A shower or two can’t be totally ruled out as the seabreeze progresses inland, but with dry air remaining in place for one more day, coverage will be limited.

We’ll see a little more sunshine tomorrow, and that’ll add a little more heat to the forecast as a result. Temperatures will top out in the mid-90s away from the immediate coast on Thursday with winds out of the southwest turning more southerly as the seabreeze moves inland later in the day. A popup shower or two ahead of the seabreeze cannot be discounted, but the vast, vast majority of us continue our rain-free streak. We’ll see more shower and storm chances come into the picture over the weekend — hang in there, lawns and gardens.

High pressure will continue to slip a little more to the east today, allowing the resulting return flow to bring a little bit more humid air characterized by dewpoints in the mid-60s into the area. Once again, we look to remain mostly rain-free across the area; the best chance of a shower or two will be in northern sections of Berkeley and Dorchester counties near I-95 closer to a trough of low pressure. Otherwise, expect a mix of high clouds and fair-weather cumulus as temperatures rise into the low-to-mid-90s ahead of the seabreeze. Heat indices will be a couple ticks higher today, generally in the mid-90s in the afternoon, particularly right after the seabreeze and its associated dewpoint surge pass by.

Temperatures and humidity will continue to creep up for the next couple days before a cold front knocks down temperatures — and brings some isolated to scattered storms — for the Memorial Day weekend.

After topping out at 94° today to mark the hottest day of 2021 so far, we return to the 90s tomorrow as the stacked high pressure pattern remains in place. If you’re looking for rain, you’re not going to find it with the ridge keeping a lid on any deep convection. Humidity remains tolerable, so heat indices will not get too far out of bounds (though there may be a brief spike as the seabreeze pushes inland). That being said, low-to-mid-90s are still plenty toasty, so find shade when you can if you’re outdoors.

We stay in the 90s for the rest of the week, with temperatures turning hotter as we get into Thursday and Friday. Humidity will also be creeping up as high pressure slides offshore, bringing winds out of the southwest and pumping in 70°+ dewpoint air. Our next rain chances kick in over the weekend as a front gets close to the area.

We’ve got another comfortably warm day ahead as strong high pressure remains firmly in control of our weather. This morning’s satellite just shows some high clouds filtering in from the north, though we can expect some fair weather cumulus to develop this afternoon as highs get into the low 80s and the seabreeze circulation develops and moves inland. Temperatures will top out in the mid-70s at the beaches with onshore flow continuing. We could see some occasionally gusty winds behind the seabreeze, which is quite important particularly if you are trying to make the cut at a certain major golf tournament.

After today, we begin to warm up quite a bit, with the heat really turning on beginning Sunday. More on this later today.