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Charleston Weather

@chswx.com
1K followers 14 following 5.1K posts

Weather forecasts and alerts for the Charleston, SC metro area (Berkeley/Charleston/Dorchester counties), first popularized on Twitter by @jaredwsmith.com. ⛈️ chswx.com 🐘 chswx.social/@chswx

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Reposted by Charleston Weather
IEMBot Charleston @chs.weather.im · 2h
At 11:53 AM EDT, 1 E Charleston [Charleston Co, SC] Other Federal reports Coastal Flood. A maximum tide level of 7.05 ft MLLW (1.28 ft MHHW) was observed at the Charleston Harbor tide gage. Shallow coastal flooding typically begins along the... #scwx Link
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Charleston Weather @chswx.com · 2h
The Coastal Flood Advisory for Charleston County has been cancelled.
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Charleston Weather @chswx.com · 2h
The Coastal Flood Advisory for Charleston County has been cancelled.
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Charleston Weather @chswx.com · 11h
Coastal Flood Advisory for Charleston County goes into effect today from 9 AM until 1 PM.
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Charleston Weather @chswx.com · 11h
Coastal Flood Advisory for Charleston County goes into effect today from 9 AM until 1 PM.
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Charleston Weather @chswx.com · 17h
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.
chswx.com
Rest of the work week: Warming trend continues; rain chances follow
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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Charleston Weather @chswx.com · 29/09/2026
The Coastal Flood Advisory for Charleston County has been cancelled.
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Charleston Weather @chswx.com · 29/09/2026
The Coastal Flood Advisory for Charleston County has been cancelled.
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Charleston Weather @chswx.com · 29/09/2026
While it shouldn’t be nearly as significant as yesterday’s flooding was, we should still see some road closures around downtown Charleston as water levels peak between 7.3-7.5’ MLLW around the 10am high tide. Be ready to reroute if you encounter a flooded road!
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Charleston Weather @chswx.com · 29/09/2026
Coastal Flood Advisory for Charleston County goes into effect today from 8 AM until 12 PM.
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Charleston Weather @chswx.com · 28/09/2026
The Coastal Flood Advisory for Charleston County has been cancelled.
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Charleston Weather @chswx.com · 28/09/2026
The Coastal Flood Advisory for Charleston County continues until 12 PM.
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Charleston Weather @chswx.com · 28/09/2026
The Coastal Flood Advisory for Charleston County continues until 12 PM.
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Charleston Weather @chswx.com · 28/09/2026
Coastal Flood Advisory for Charleston County goes into effect today from 7 AM until 12 PM.
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Charleston Weather @chswx.com · 28/09/2026
The Coastal Flood Advisory for Charleston County has been cancelled.
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Charleston Weather @chswx.com · 28/09/2026
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.…
chswx.com
The week ahead: Moisture returns, with rain chances following suit
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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Charleston Weather @chswx.com · 28/09/2026
Coastal Flood Advisory for Charleston County will be in effect today from 8 PM until 11 PM.
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Charleston Weather @chswx.com · 27/09/2026
Another round of minor coastal flooding will be possible with the 9:06 PM high tide. Watch for possible road closures.
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Charleston Weather @chswx.com · 27/09/2026
Coastal Flood Advisory for Charleston County will be in effect today from 8 PM until 11 PM.
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Charleston Weather @chswx.com · 27/09/2026
Coastal Flood Advisory for Charleston County goes into effect today from 8 PM until 11 PM.
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Charleston Weather @chswx.com · 27/09/2026
The Coastal Flood Advisory for Charleston County has expired.
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Charleston Weather @chswx.com · 27/09/2026
Coastal Flood Advisory for Charleston County goes into effect today from 7 AM until 11 AM.
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Charleston Weather @chswx.com · 27/09/2026
The Coastal Flood Advisory for Charleston County has been cancelled.
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Charleston Weather @chswx.com · 26/09/2026
Coastal Flood Advisory for Charleston County goes into effect today from 7 PM until 11 PM.
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Charleston Weather @chswx.com · 26/09/2026
The Coastal Flood Advisory for Charleston County has expired.
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Charleston Weather @chswx.com · 26/09/2026
Coastal Flood Advisory for Charleston County goes into effect today from 6 AM until 10 AM.
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Charleston Weather @chswx.com · 26/09/2026
The Coastal Flood Advisory for Charleston County has been cancelled.
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Charleston Weather @chswx.com · 25/09/2026
The Coastal Flood Advisory for Charleston County continues until 10 PM.
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Charleston Weather @chswx.com · 25/09/2026
Coastal Flood Advisory for Charleston County goes into effect today from 6 PM until 10 PM.
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Charleston Weather @chswx.com · 25/09/2026
Feels like…well, fall! Try to get outside today if you can!
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Charleston Weather @chswx.com · 25/09/2026
The Coastal Flood Advisory for Charleston County will expire at 9 AM.
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Charleston Weather @chswx.com · 25/09/2026
Coastal Flood Advisory for Charleston County goes into effect today from 5 AM until 9 AM.
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Charleston Weather @chswx.com · 25/09/2026
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.
chswx.com
Friday & the weekend: Sunnier and warming
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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Charleston Weather @chswx.com · 25/09/2026
The Coastal Flood Advisory for Charleston County has been cancelled.
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Charleston Weather @chswx.com · 25/09/2026
The Coastal Flood Advisory for Charleston County continues until 10 PM.
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Charleston Weather @chswx.com · 24/09/2026
The Coastal Flood Advisory for Charleston County continues until 10 PM.
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Charleston Weather @chswx.com · 24/09/2026
Today’s high was 70°, the coolest high temperature since May 2 when the high was 63°!
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Charleston Weather @chswx.com · 24/09/2026
We’ve seen some periods of drizzle from time to time, but more substantial rain with even some thunder is moving across the area from northwest to southeast this afternoon. Be ready for slowdowns as you commute this evening.
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Charleston Weather @chswx.com · 24/09/2026
Be alert to possible road closures due to tidal flooding if your evening plans take you into downtown Charleston. Water levels should peak around 7.5’, which is moderate flood stage, around the 7:15 PM high tide. Coastal Flood Advisory from 5-10 PM.
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Charleston Weather @chswx.com · 24/09/2026
Coastal Flood Advisory for Charleston County will be in effect today from 5 PM until 10 PM.
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Charleston Weather @chswx.com · 24/09/2026
Coastal Flood Advisory for Charleston County goes into effect today from 5 PM until 10 PM.
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Charleston Weather @chswx.com · 24/09/2026
Breezy and cool conditions continue Thursday as low pressure deepens offshore. A shower or two will be possible, but coastal flooding is the main concern, especially in the evening. Clouds scour out for the weekend, and it'll be gorgeous.
chswx.com
Thursday: Another cool and breezy day with a few showers
Breezy and cool conditions continue Thursday as low pressure deepens offshore. A shower or two will be possible, but coastal flooding is the main concern, especially in the evening. Clouds scour out for the weekend, and it'll be gorgeous.
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Charleston Weather @chswx.com · 23/09/2026
The Coastal Flood Advisory for Charleston County has been cancelled.
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Charleston Weather @chswx.com · 23/09/2026
Coastal Flood Advisory for Charleston County goes into effect today from 5 PM until 8 PM.
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Charleston Weather @chswx.com · 23/09/2026
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.
chswx.com
Rest of the work week: Turning cooler — and breezier
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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Charleston Weather @chswx.com · 22/09/2026
Low pressure aloft turns Tuesday a bit more unsettled, but a southward-moving cold front sets a noticeably more seasonable tone beginning Wednesday and heading into the weekend.
chswx.com
Tuesday: Another warm and occasionally stormy day, but changes are afoot
Low pressure aloft turns Tuesday a bit more unsettled, but a southward-moving cold front sets a noticeably more seasonable tone beginning Wednesday and heading into the weekend.
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Charleston Weather @chswx.com · 21/09/2026
The week ahead gets off to a hot, humid, and unsettled start, but by the end of the week, temperatures will be more befitting of — if not a few clicks below — what we'd expect from late September.
chswx.com
The week ahead: Unsettled and warm start, but seasonable conditions arrive this weekend
The week ahead gets off to a hot, humid, and unsettled start, but by the end of the week, temperatures will be more befitting of — if not a few clicks below — what we'd expect from late September.
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Charleston Weather @chswx.com · 19/09/2026
Showers and thunderstorms are developing across inland areas of the Tri-County and moving slowly southwestward. Be ready for heavy rain and lightning. When thunder roars, go indoors!
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Charleston Weather @chswx.com · 19/09/2026
An upper low stalling out over Florida combined with an approaching (then stalling) front will help turn things a little more unsettled this weekend. chswx.com/blog/2026/09/18/weekend-f…
chswx.com
Weekend forecast: Warm and muggy as thunderstorm chances return
An upper low stalling out over Florida combined with an approaching (then stalling) front will help turn things a little more unsettled this weekend.
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Charleston Weather @chswx.com · 19/09/2026
Watching showers and thunderstorms to the north as they sink southward. There’s an outside shot that these could survive into the Tri-County overnight, albeit in a weakening state.
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