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Author: Jared Smith

Jared Smith founded @chswx on Twitter in 2008 as an experiment in disseminating weather data through social media. In the ensuing decade-and-a-half, @chswx has provided live coverage of tropical cyclones, tornadoes, severe weather, and even a couple bouts of winter weather to the good people of Charleston, SC.

Next seven days: Unsettled weekend ahead as Isaias passes to the west

/ October 7, 2026 at 9:32 PM

High pressure will wedge southward into the area over the next couple days before being shoved out of the way by Tropical Storm Isaias as it makes landfall on the Gulf Coast on Saturday, bringing about a very unsettled weekend with heavy rain, flooding, and possibly some severe weather.

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Rest of the work week: High pressure remains in place with a mix of sun and clouds

/ October 6, 2026 at 8:58 PM

Generally quiet conditions will continue for the rest of the work week with a mix of sun and clouds accompanied by seasonable temperatures for this point of the year.

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Tuesday: Turning breezy, with elevated evening tides and a beach erosion threat

/ October 5, 2026 at 11:44 PM

Drier air will continue to push into the area overnight into Tuesday, but it won’t be enough to totally erode the cloud deck as some low-level moisture will remain trapped due to a wedge of high pressure building in from the north. We should see some breaks in the clouds, but otherwise, expect another mostly cloudy day across the area. We’ll start in the mid-50s, warming to the mid-70s in the afternoon (though that may be generous if cloud cover remains more stout). Of greater concern will be winds, especially the closer you get to the coast. Gusts will range from 20-25 MPH inland to 35-40 MPH at the coast. It could be a tricky drive over the bridges at times, so be alert to that. There’s not a formal Wind Advisory yet, but that may yet come with the overnight forecast update from NWS.

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Rest of Monday: Showers linger, but the deluge is over

/ at 10:27 AM

Showers will linger throughout the day Monday with mostly cloudy skies still in place. Temperatures will run cooler today with the cloud cover and northeasterly winds bringing in slightly cooler and drier air in the wake of a cold front — the first of two to affect the area early this week. Expect highs to peak in the mid-70s with a break or two in the clouds possible from time to time. Additional rainfall amounts should be light, which is awfully good news after an absolutely waterlogged Sunday night for parts of the Charleston metro.

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Friday & the weekend: Turning more unsettled as a front drops southward

/ October 1, 2026 at 9:09 PM

A southward-moving cold front will bring about a bout of unsettled weather this weekend that’ll linger into next week with high pressure building back in from the northeast.

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Rest of the work week: Warming trend continues; rain chances follow

/ September 29, 2026 at 8:27 PM

Warmer-than-normal temperatures will continue for the rest of the work week, with rain chances starting to tick up as we get toward Friday and the weekend.

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The week ahead: Moisture returns, with rain chances following suit

/ September 27, 2026 at 9:14 PM

After a beautiful weekend, the pattern begins to shift back toward warmer and more humid conditions once more, bringing about the return of shower and thunderstorm chances later this week into the weekend.

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Friday & the weekend: Sunnier and warming

/ September 24, 2026 at 9:29 PM

After a bit of a dreary and chilly day featuring a high struggling to 70° — the coolest day since we only topped out at 63° on May 2 — the sun returns to the forecast beginning Friday and lasting into next week.

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Thursday: Another cool and breezy day with a few showers

/ September 23, 2026 at 10:13 PM

High pressure wedging in from the northeast made for a much cooler day on Wednesday — the high only reached 77°, the coolest high since 76° on May 31 — and we’ll keep that going into Thursday. Winds kick up a bit more Thursday as low pressure begins to spin up offshore, tightening the pressure gradient across the area. There could be some showers within the wedge at any point during the day, but nothing too out of control by any stretch. The main hazards will be a risk for coastal flooding at times of high tide. The 6:40am high tide could touch 7′ MLLW, producing some minor flooding in the most vulnerable locations. The evening high tide, which peaks around 7:10 PM, will run more than a half-foot higher, with moderate coastal flooding expected. Be ready for road closures downtown during the second half of the commute.

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Rest of the work week: Turning cooler — and breezier

/ September 22, 2026 at 8:48 PM

The first legitimate shot of cooler air of the season begins to build in on Wednesday as high pressure starts to wedge into the area from the north. It’ll bring with it some breezy conditions and an elevated risk of coastal flooding that will last into at least Friday.

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