Charleston Weather Blog

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

Rainy Sunday ahead with coastal flooding issues in the morning

/ at 10:00 PM

Sunday will be an active weather day across the area as a somewhat complex storm system moves through the Southeast US. Needed rain will fall throughout the day, but some of that rain might be heavy at times near a morning high tide that would cause flooding on a sunny day.

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Weekend forecast: Cool Saturday, rainy Sunday

/ January 20, 2023 at 6:22 PM

Despite thickening cloud cover and a cool wedge of high pressure building in Saturday, it’ll be the day to do anything outside as Sunday looks more active with some heavy rain at times and maybe some coastal flooding in the morning to boot.

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Thursday: Partly cloudy, slight shower chance in the evening…and warm!

/ January 18, 2023 at 6:43 PM

Thursday will be quite a warm day ahead of a cold front that will swing through late night/early Friday morning. We’ll start the day some 15+° above normal as lows only bottom out in the mid-50s. Temperatures will head into the mid-70s in the afternoon, with some upper 70s possible in spots.

It’ll be a bit of a windy day: expect winds to kick up to 15-20 MPH sustained with gusts 25-30+ MPH particularly in the afternoon hours. Higher speeds will be possible on bridges, and a Lake Wind Advisory is in effect for Lake Moultrie tomorrow as well. Hold on to your hats and steering wheels if navigating the bridges is in your travel plans tomorrow.

There will be a slight chance of showers as the front gets closer Thursday evening. Some of the high-res guidance sparks some additional showers as a remnant boundary ahead of the front itself perhaps intersects a seabreeze, but widespread heavy rain is not expected and no thunderstorms are forecast.

Continued warmth through Thursday before a front swings by for Friday

/ January 17, 2023 at 8:20 PM

Temperatures look to stay well on the warm side of normal heading into the weekend, especially Wednesday and Thursday before a front late Thursday brings temperatures back down a little bit.

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Rest of the work week: Much warmer, a couple shower chances mixed in

/ January 16, 2023 at 9:37 PM

The rest of the work week will be punctuated with a warming trend through Thursday before a cold front knocks temperatures down slightly for Friday. There will be a few shower chances, but mostly after dark.

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Cold start, but warming nicely for Martin Luther King, Jr. Day

/ January 15, 2023 at 9:56 PM

We have another round of subfreezing lows ahead for tonight, with clear skies and calm winds allowing temperatures to fall to the low 30s to start the day away from the warmer coastline. It won’t be a terribly long-duration freeze, but regardless, make sure pets are in and plants are covered again tonight.

After that chilly start on Monday, we’ll see temperatures head into the low 60s in the afternoon as shortwave ridging aloft and more southerly winds kick in. We’ll see an increase in high clouds as the day goes on, but overall, expect plenty of sunshine for any outdoor Martin Luther King, Jr. commemorations.