Charleston Weather Blog

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

Thursday: Cold front arrives with showers, a few thunderstorms

/ March 11, 2026 at 11:38 PM

After a new daily record high of 89° was set at the airport on Wednesday, changes are forthcoming as we head into Thursday as a cold front approaches the area. We will start the day quite warm — record warm low temperatures are not out of the question — with lows in the mid-60s at coolest. Temperatures will then head into the mid-70s before a band of showers and thunderstorms approaches the area by mid-morning. Brief periods of heavy rain are possible, but storms will be moving quickly, so no concerns about too much rain in one location. Any rain we can get remains helpful as severe drought continues across the Lowcountry. There could be some thunder, too, and a few strong thunderstorm wind gusts can’t be totally ruled out as the line gets through.

The front will sweep the moisture and warm airmass offshore by evening, and temperatures will drop quickly into the 50s in its wake. If you are out and about Thursday evening, keeping a light jacket close by may not be the worst idea!

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Rest of the work week: Record warmth expected Wednesday, then a front cools us off

/ March 10, 2026 at 11:08 PM

Another very warm day is on tap for Wednesday on the heels of the warmest day thus far in 2026. Wednesday’s forecast high of 87°, if it verifies, would break the daily record high for March 11 of 85° set in 2015. We’ll have plenty of sunshine for a good bit of the day, though cloud cover will tick up in the evening ahead of a cold front that will begin to restore a little order to a spring preview that’s gotten a bit out of hand.

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