Charleston Weather Blog

Forecast explanations, atmospheric science, and other cool weather-related stuff for Charleston, SC

Weekend forecast: A fairly typical first weekend of August

/ August 4, 2023 at 9:19 PM

Pretty standard early-August fare is in order for the weekend (weather-wise, anyway). Expect to start Saturday in the mid-70s under partly cloudy skies, with highs heading into the low 90s in the afternoon. Isolated to scattered showers and thunderstorms will be possible, though it’s worth noting that Friday afternoon’s high-resolution models keep coverage pretty sparse across the Tri-County. It’s conceivable that some folks may not see a drop of rain — altogether not the worst thing after a fairly wet Friday.

Expect more of the same on Sunday with temperatures heading a couple degrees warmer than Saturday as a nearby front washes out. Heat indices will push 100° in the afternoon with another chance of a few afternoon and evening thunderstorms. Like Saturday, widespread rain is currently not anticipated — just be ready to bring outdoor activities inside in case thunderstorms approach.

Friday & the weekend: Storms and 90s return

/ August 3, 2023 at 6:30 PM

Our recent dry respite is about to come to an end as disturbances aloft interact with a surface front to keep things unsettled for a few days. The greatest coverage of storms will be on Friday as the most vigorous disturbance moves on by with the front sinking into the area. Numerous showers and thunderstorms are expected, and this will have the effect of suppressing highs into the mid-80s. Instability should be fairly weak, and the severe weather threat is low, but some heavy downpours will be possible which could lead to some areas of flooding.

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Thursday: One more quiet, dry day before unsettled weather returns

/ at 6:39 PM

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.

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