Charleston Weather Blog

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

The week ahead: Stormy Monday, then turning more seasonable

/ April 6, 2025 at 10:58 PM

The recent late spring/early summer preview of the past week or so will come to an end on Monday as a cold front moves through the area, bringing more seasonable (if not somewhat cooler-than-normal) temperatures back to the Lowcountry for the second week of April.

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Weekend forecast: Warm and breezy, particularly Sunday

/ April 4, 2025 at 6:30 PM

Bridge Run Weekend will remain rain-free, though much warmer-than-normal temperatures will continue. Saturday starts in the mid-60s, perhaps at least tying the record warm low temperature for April 5 (65°) before highs head to the low to mid-80s in the afternoon under generally partly cloudy skies. The seabreeze comes through later in the afternoon, undercutting any stronger warming, so the record high of 89° set in 1978 appears safe. It’ll still be a bit breezy, with winds 15-20 MPH with higher gusts at times owing to our position between high pressure over the Atlantic and a strong, stalled storm system to the west.

We will turn even breezier for Sunday as the storm system starts to dislodge and move our direction. Once again, a record warm low temperature is in striking distance (68° set in 2023) to start the day before warming back to the low to mid-80s in the afternoon before the seabreeze moves through. A solid mix of sun and clouds will give the sky some character, but we stay rain-free for one more day (though a few showers will be possible late the further inland you go).

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Friday & the weekend: Staying quite warm through Sunday

/ April 3, 2025 at 6:30 PM

It will be a very warm Bridge Run weekend as deep-layered high pressure atop the Southeast, in a configuration more reminiscent of summer, hangs around for a few more days. We’re working on a record warm low temperature for Thursday — the low so far of 70° would blow past the previous record of 67° set in 2012 — with maybe a couple more to fall before the weekend is out.

Lows on Friday should only bottom out around 70°, which would tie the record warm low temperature last set in 1970. Highs would then soar to the upper 80s in the afternoon before the seabreeze moves through and cuts temperatures down a bit. Partly cloudy skies will be the general rule, while we stay breezy during the day owing to the pressure gradient between high pressure to the east and the stalled storm system to the west.

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Thursday: Turning warmer as Atlantic high pressure takes charge

/ April 2, 2025 at 10:58 PM

Atlantic high pressure at the surface and aloft will bring on progressively warmer weather as we hit Thursday and the rest of the Bridge Run weekend. We may set some record warm low temperatures during this stretch, starting with Thursday’s forecast low of 67°, which would tie the record warm low set in 2012. It’ll be a partly cloudy day, and the increasing influence of high pressure will keep any shower activity at bay (unlike what a few of us saw on Wednesday as a warm front lifted north). Temperatures will head to the mid-80s in the afternoon, which should get us right into some of the warmest air so far this year.

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