Charleston Weather Blog

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

Rest of the work week: A couple more unsettled days before late-July heat returns

/ July 22, 2025 at 10:49 PM

The stalled front that brought us some flooding rains and severe weather on Tuesday lingers over the next couple days before high pressure nudges in, sending rain chances down and temperatures up for Friday.

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Tuesday: Thunderstorms developing this afternoon, with heavy rain and flooding possible

/ at 8:14 AM

Thunderstorms will feature prominently in today’s forecast as the seabreeze pushes inland and a front drops in from the north.

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The week ahead: Searing hot start, but turning more unsettled

/ July 20, 2025 at 8:14 PM

This weekend’s hot weather continues into Monday, but a more unsettled pattern will cool temperatures down back to normal (still not chilly, but not overwhelmingly hot, either) as rain chances tick back up.

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Weekend forecast: Very hot, nary a shower or storm

/ July 18, 2025 at 7:35 PM

We’ve got a rather hot weekend ahead as high pressure builds in overhead and at the surface. We can expect temperatures each day to head into the upper 90s each afternoon, with heat indices surging to around 110° in spots especially in the immediate wake of the seabreeze.

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Friday & the weekend: Heat turns up a notch; advisories possible

/ July 17, 2025 at 10:57 PM

The story for Friday and the weekend will be the potential for dangerous heat as high pressure ridges in overhead and at the surface while dewpoints continue to run in the low-to-mid-70s, helping to keep overnight lows elevated to near record-warm levels and storm chances suppressed, worsening the risk for heat stress as a result.

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