Charleston Weather Blog

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

Tuesday: Breezy, warm, with a stray storm

/ July 20, 2026 at 9:27 PM

Tuesday looks similar to Monday, with temperatures warming into the low-to-mid-90s in the afternoon after another sultry start in the upper 70s to low 80s. Heat indices inland will run in the low 100s, but may push 108° as we get closer to the coast and the higher-dewpoint air. Southerly winds will continue to be breezy, with gusts pushing 30 MPH at times midday.

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The week ahead: Warm and muggy conditions continue; turning more unsettled

/ July 19, 2026 at 9:16 PM

The week ahead will continue to feature warm and muggy conditions, with an uptick in rain chances as we get over the hump toward the weekend.

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Weekend forecast: Rinse and repeat

/ July 17, 2026 at 10:43 PM

Midsummer heat and humidity will not relent this weekend with temperatures continuing to run above normal courtesy of Atlantic high pressure pumping warm and moist air into the area while high pressure remains resident aloft for a few more days.

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