Wednesday promises one more day of above-normal temperatures before a cold front adjusts temperatures downward for the remainder of the week. We should see plenty of sunshine during the day, though clouds will be on the increase in the afternoon with even a stray shower possible in the evening. WIth gusty winds and low humidity, fire danger could be elevated tomorrow, so please don’t burn if you can help it.
Better rain chances arrive overnight into Thursday as the aforementioned cold front moves through the area. The most striking change will be to high temperatures; after several days in the 80s, we’ll top out in the mid-70s on Thursday and will run even a tad cooler on Friday under mostly cloudy skies.
Clouds will hang around on Friday into the weekend as the front stalls out to the south, with some differing solutions on whether and how much rain could re-enter the picture over the weekend as that front hangs out. Stay tuned to forecast updates as far as how the weekend ultimately plays out.
Chilly temperatures will define the next couple days as Arctic air continues to spill into the area. We’ll start Wednesday below freezing in most locations away from the immediate coast; despite full sunshine, temperatures will struggle to reach the low 50s. Another freezing cold night is ahead for Thursday, but the afternoon will be a little warmer as winds swing around to the south ahead of the next cold front. Cloud cover will increase and help keep us warmer for Friday morning, with lows in the mid-40s. By Friday afternoon, we’ll see highs return to the low 60s — and a pre-frontal band of showers will roll through the area as well.
The rest of the work week will be characterized by a bit of a warming trend. Expect high temperatures in the low 60s from Tuesday through the end of the week before a cold front backdoors into the area sometime Friday.
Mostly sunny skies will dominate Tuesday and Wednesday before the next storm system begins to affect the area Thursday with increasing clouds and a slight chance of a shower late. Scattered showers will remain in the forecast on Friday as the front sags southward across the area.
After Isaias, we find ourselves back in a wetter-than-normal summertime regime, with scattered thunderstorms possible each day as we remain under a trough of low pressure aloft. Plenty of atmospheric moisture will remain in place, allowing for heavy rain in any thunderstorms that develop. Be on the lookout for plentiful lightning, too, with the occasional storm turning severe with strong downburst winds.
Temperatures will remain generally around where they should be in early August: Upper 80s to low 90s. Mix in the humidity and heat indices in the 100s will be routine, with dangerous heat indices around 105° possible for Thursday and Friday.
After a seasonable, somewhat cloudy Presidents’ Day, we look toward an unsettled work week ahead, with shower chances each day and gradually cooling conditions. Tuesday will be the warmest of the two days as temperatures rise to the low 70s in the wake of a warm front. A cold front will then back-door into the area from the north on Wednesday, causing temperatures to plummet and winds to shift around to the northeast for Thursday. Finally, one more front swings through Thursday night into early Friday, scouring out the rain and leaving us quite chilly with highs perhaps not making it to 50°. (No, winter is not over yet.)
@chswx is community-supported, hype-averse weather information, preparedness tips, and alerts for the Charleston, SC Tri-County area (Berkeley, Charleston, Dorchester counties) by Jared Smith.