Charleston Weather Blog

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

Friday and the weekend: Mostly sunny and cold for Friday and Saturday, with rain returning Sunday

/ January 28, 2021 at 6:57 PM

Chilly high pressure will continue to build into the area tonight into Friday, bringing freezing temperatures very close to the coast to start the last day of the work week. Temperatures will struggle to reach 50° despite full sunshine. Expect mostly sunny skies to prevail through Saturday as temperatures moderate back into the mid-50s in the afternoon. Our next storm system begins to affect the area possibly as early as late Saturday night, with rain likely on Sunday. Can’t rule out a few rumbles of thunder, either. It’ll be noticeably warmer — highs in the mid-60s will be common Sunday in the warm sector of the storm system before it moves through late Sunday into early Monday.

Windy, cooler, but clearing up for Thursday

/ January 27, 2021 at 9:55 PM

A cold front will swing through overnight, bringing much cooler and drier air to the Lowcountry for the next few days. Wind gusts 30-35 MPH could be common overnight into Thursday morning, with higher gusts possible on bridges and overpasses. Be careful during your morning commute.

Skies should clear out by midday, but despite plenty of sunshine, temperatures will struggle to the low 50s as cold air pumps into the area. But, hey, the sun will come out, and that’s better than we can say for the last few days.

Rainy Wednesday ahead

/ January 26, 2021 at 9:18 PM

Get ready for a soggy Wednesday as a cold front and upper disturbances combine to produce quite a bit of rainfall. Atmospheric moisture will be abnormally abundant for this time of year, allowing for most areas to receive over an inch of rain tomorrow. Temperatures will top out in the low 60s as a front sags south of the area.

Rain looks to begin to taper off in the evening hours as a secondary front pushes offshore. This will bring in cooler and drier air overnight, and by sunrise Thursday we should be seeing rapid clearing.

Tuesday: Warm with showers late

/ January 25, 2021 at 9:46 PM

After the warmest day since New Year’s today, we’ll get back into the mid-70s for Tuesday as we remain in the warm sector of a storm system cutting across Tennessee this evening. We’ll be under mostly cloudy skies with a few peeks of sun throughout the day, with shower chances increasing as the evening progresses ahead of what appears to be a very soggy Wednesday across the Tri-County.

The forecast high of 76° at the airport runs well above the normal high of 60° for January 26. The record high is 80°, set in 1949.