Charleston Weather Blog

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

Tuesday: Cooling trend begins

/ October 14, 2024 at 9:18 PM

After a day of record temperatures, in which a new record high was set downtown and another record high was tied at the airport, we will begin to turn sharply cooler as a series of fronts, one of which came through this afternoon, starts to bring in some of the coolest air so far this season.

Tuesday’s temperatures, despite plenty of sunshine, will run a little below normal for this point in October. We start the day in the low 50s, warming to the mid-70s in the afternoon. Clouds will be hard to come by, though they should begin to increase after midnight. That being said, it should be another solid evening of stargazing in the western sky as Comet Tsuchinshan–ATLAS continues to appear in the night sky after sunset.

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The week ahead: Coolest weather thus far this season for mid-week

/ at 6:17 PM

We’re back on the temperature rollercoaster this week as a front moves by on Tuesday, which will usher in the coolest airmass thus far this season for mid-week. (Certainly a far cry from watching another tropical system, that’s for sure.)

First, though, we have one more day in the 80s before the front gets through. It’ll be the warmest day of the week, starting around 60° and warming to the mid-80s in the afternoon. We’ll get within spitting distance of the record high of 88° set in 1943 and 1990, but we should stay below that mark. Much like Sunday, expect another day of unfettered sunshine on Monday.

The front moves by Tuesday with a little more in the way of cloud cover but little else. That will cool highs off to the mid-70s, roughly 10° or so cooler than Monday. We really feel the cooler airmass on Wednesday, though, as temperatures fall to the upper 40s in the morning, only reaching the mid-60s in the afternoon. Thursday runs even cooler in the morning, with mid-40s reaching back to the mid-60s once again. No rain’s expected with this frontal passage, and we’ll see primarily sunshine more than anything else.

After one more start in the mid-40s, a warming trend commences Friday as highs climb back to the low 70s. Saturday will run a little warmer, with highs in the mid-70s, and we’ll run even a click warmer on Sunday as well, with plenty of sunshine throughout.

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Weekend forecast: No weather worries

/ October 11, 2024 at 9:29 PM

We have an outstanding weekend of weather ahead as high pressure remains in control. After our first low in the 40s Friday morning, Saturday starts back in the upper 40s once more, but winds will start to swing around to the south and that will begin to help moderate the airmass a bit. Expect just a few passing clouds Saturday afternoon, but otherwise, lots of sunshine will be the rule.

Sunday will be a warmer day. We start the day in the mid-50s, warming back into the low 80s in the afternoon under mostly sunny skies. It’ll be a very comfortable low 80s, though, as humidity will be a non-factor with dewpoints in the mid-50s.

I hope you get a chance to enjoy this wonderful weekend of weather!