Charleston Weather Blog

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

Weekend forecast: Breezy with showers Saturday, some slow improvement Sunday

/ October 10, 2025 at 11:58 PM

The nor’easter that drove the highest tide of the year on Friday will continue to affect our weather Saturday and to a lesser degree on Sunday. Showers will continue overnight through much of the day on Saturday, and gusts will continue to head into the 25-30 MPH range especially near the coast and on bridges and overpasses. Temperatures remain on the cool side as well, with lows in the low 60s warming to just about 70° at best in the afternoon.

We will also be contending with the risk for moderate coastal flooding once again with the midday high tide. A Coastal Flood Advisory is in effect from 10 AM-2 PM as a result. While this tide will certainly be less severe than we saw on Friday, it’ll still be high enough to close plenty of roads downtown right smack in the middle of the day. Be ready to reroute around road closures as a result.

We’ll see the nor’easter gradually pull away Sunday, though some showers look to persist. Temperatures will still be cooler than normal, with lows in the low 60s warming to the low-to-mid-70s in the afternoon with a little bit more sun breaking through. Winds will be backing off, and this will help mitigate a more serious coastal flooding threat during the day, though we should still see minor to moderate flooding with the early afternoon high tide that could close a few roads.

This will lead into a quieter and sunnier week ahead with high pressure in control. Humidity will be low and temperatures will be comfortably warm, with highs in the upper 70s to around 80° each afternoon.

Friday & the weekend: Wind and rain with major coastal flooding Friday & Saturday

/ October 9, 2025 at 8:32 PM

A non-tropical storm system spinning up offshore will bring wind and rain to the area along with major coastal flooding with the midday high tides Friday and Saturday. We’ll start to see some improvements Sunday, thankfully.

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