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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.

Tuesday: One more day of seasonable temperatures before warmth returns

/ November 17, 2025 at 6:59 PM

After a near-normal day of temperatures on Monday, we’ll look for a similar performance on Tuesday. Temperatures will start in the mid-40s across much of the area (a little warmer near the coast, a little cooler further inland), and highs will peak around 70° in the afternoon with mostly sunny skies remaining the rule. Winds will be going more southerly during the day as surface high pressure begins to shift offshore. This will set us up for a few days of rather warm temperatures starting Wednesday.

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The week ahead: Unseasonably warm temperatures develop with little rain in sight

/ November 16, 2025 at 11:19 PM

After a cold front brings a brief cooldown to the area on Monday, temperatures return to the 70s on Tuesday before heading well above normal for the balance of the week ahead with little rain in sight.

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Weekend forecast: Warm and quiet weather continues

/ November 14, 2025 at 8:25 PM

After a brief cooldown on Friday, temperatures head back above normal for the weekend as high pressure remains the dominant weather feature across the area. We’ll see the high that’s overhead as of Friday evening slip southward, sending wind directions a little more westerly to southwesterly, kicking temperatures back into the low-to-mid-70s on Saturday. Compressional heating ahead of an advancing cold front will send highs on Sunday solidly into the mid-70s after a warmer start in the mid-50s. This frontal passage once again looks dry thanks to a dearth of moisture; in fact, rain chances remain slim well into next week.

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Friday & the weekend: Quiet weather continues

/ November 13, 2025 at 9:15 PM

Quiet weather continues for Friday and the weekend as reinforcing high pressure arrives overnight. Friday will feel a touch cooler than Thursday did, with winds going back around to the north in the wake of a dry cold front. Lows Friday bottom out in the mid-40s, with highs peaking in the upper 60s in the afternoon under uninterrupted sunshine.

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Rest of the work week: Warming trend commences after record lows Tuesday

/ November 11, 2025 at 9:50 PM

Record lows were tied both at North Charleston as well as Downtown Charleston Tuesday morning as a potent shot of Arctic air swung through the area. The low at the airport fell to 29°, tying the record first set in 1943, while Downtown fell to 32°, tying the record low first set in 1913. A record cold high temperature appears to have been set as well at the airport, with the high only reaching 49° for the day, breaking the record of 54° set in 1968. Downtown also only peaked at 49°, but the record cold high temperature of 46°, set in 1913, remains safe. The freezing temperatures put an end to the growing season, which means that there will be no more Frost and Freeze products from the National Weather Service until the season resumes in March.

The good news is that a warming trend begins Wednesday. Temperatures will bottom out around or below freezing further inland, but should only drop to about the mid-30s closer to the coast and in the metro area. Temperatures will rebound quite nicely under full sunshine, with highs peaking in the mid-60s in the afternoon. This is still a little off the normal high for this point in November, but only by about 5-6° as opposed to 22°! The warming trend continues Thursday into Friday as the airmass continues to moderate under high pressure, with just a few clouds from time to time. Overall, there continues to be no major weather concern this week now that we have last night’s freeze behind us.

Tuesday: First freeze arrives with record lows possible

/ November 10, 2025 at 8:13 PM

A highly anomalous Arctic intrusion is arriving this evening, evidenced by gusty winds 25-30 MPH and plummeting dewpoints across much of the area as of 7PM Monday. Further north, some flurries were reported in the Charlotte metro area and as far south as Hartsville, SC. Here at home, the first freeze of the season will occur for the vast majority of us; ensure pets and plants are protected and safe tonight as temperatures will fall into the 20s. Wind chills could drop into the upper teens, prompting a Cold Weather Advisory for Dorchester County. (Layer up!) Despite full sunshine, temperatures may not crack 50° in the afternoon, owing to the strength of the Arctic blast. If these forecasts verify, new record low and record cold high temperatures will be set at the airport: the record low for November 11 is 29°, set in 1943, while the record cold high temperature is 54°, set in 1968.

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The week ahead: A short-lived shot of winter brings about the first freeze of the season

/ November 9, 2025 at 9:52 PM

A strong cold front will bring about the first freeze of the season overnight Monday into Tuesday as a highly anomalous intrusion of Arctic air pushes southward. The winter preview will be short-lived, thankfully, but it will be impactful as the growing season almost certainly will end Tuesday morning.

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Weekend forecast: Spring-like warmth before a wintry chill

/ November 7, 2025 at 10:45 PM

A couple more warm days lie ahead before the coldest airmass of the season crashes into the area next week. Saturday will generally feature temperatures in the upper 70s after starting the day near 60°. We’ll keep a few clouds around, but the risk for any rainfall should be very low.

A strong front approaches the area Sunday, and there’s a chance that some showers and maybe a thunderstorm could move through in advance, but the risk will be diminishing as the front pushes eastward as moisture doesn’t look to be in abundance. Temperatures Sunday peak near 80° after starting in the low 60s.

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Tuesday: Another sunny and seasonable day

/ November 3, 2025 at 8:02 PM

Plenty of sunshine will continue on Tuesday as high pressure builds across the area from the west, keeping northeasterly flow in place which will keep temperatures on the cool side of normal and also help to elevate the morning high tide into minor flood stage. We’ll start the day in the mid-40s, warming to the upper 60s in the afternoon, which will feel quite comfortable with the sun out. The aforementioned northeasterly winds will run generally in the 5-10 MPH range, which will be enough of a breeze to make it feel a little cooler in the shade.

As mentioned, some coastal flooding will be possible between 5-8am as water levels peak in minor flood stage (7-7.2′) with the 6:11 am high tide. This may have limited impacts in the most vulnerable areas of the peninsula, primarily around the Hagood/Fishburne intersection as well as possibly on parts of Lockwood. Be ready to reroute around any closures.

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The week ahead: Generally quiet and turning warmer; coastal flooding an issue, though

/ November 2, 2025 at 11:41 PM

The week ahead looks generally quiet and increasingly warm, especially as we get into late week and the first part of the weekend, but nothing too out of bounds for early November. Coastal flooding will become an issue beginning Tuesday as favorable winds and the highest astronomical tides of the season coincide, though.

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