Photo: Wikipedia · Charleston, South Carolina
Charleston is looking at about 77°F for 2026-09-26 – 2026-09-27 — here's how to use that forecast.
Should you plan around Charleston's forecast this weekend?
Charleston, South Carolina
Weekend air in Charleston sits near 77°F / 62°F, plus only light rain on the books (~0.15 in) — enough to decide whether the trip is on.
Use the outlook as the itinerary filter: plan the outdoor pieces when 77°F feels right, and keep a café backup if clouds show up.
If the numbers still look good by Friday, lock the plan around 77°F — not a vague “nice weather somewhere.”
Things to do
Charleston City MarketBottom line
If the forecast holds, Charleston at about 77°F is worth planning around — use the local picks above to fill the day.
Keep planning
Updated September 21, 2026. Not a substitute for local advisories.