Charleston Weather Blog

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

The week ahead: Unsettled start followed by a brief “cooldown”

/ July 30, 2023 at 11:15 PM

The week ahead starts out unsettled as a front meanders in the area before we “cool off” a bit heading into mid-week as the aforementioned front pushes south, ushering in a slightly cooler and drier airmass. Ridging then builds back in to warm us up later in the week.

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Sunday’s forecast: Back to the heat

/ at 8:03 PM

The brief interlude away from the mid-90s air temperatures that have punctuated a fair bit of July will end Sunday as a tropical low and its associated showers and thunderstorms moves away. We’ll start the day in the mid-70s before highs top out in the mid-90s in the afternoon; mix in humidity and we should see heat indices around 105-106° around peak heating.

Scattered showers and thunderstorms should fire later in the afternoon into the evening hours and head coastward within northwest flow. A storm or two could get strong enough to produce a damaging wind gust or two, so we’ll want to watch that potential closely. Not everyone will see rain and storms, but if you do, be ready to move outdoor activities inside.