Charleston Weather Forecast
Charleston weather: 73°F, heavy rain. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
14-day forecast for Charleston
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sat, Aug 22 | 🌧️ Heavy rain | 88° / 74° | 48% · 1,2 in | 15 mph | 8 |
| Sun, Aug 23 | 🌦️ Light drizzle | 87° / 73° | 22% · 0,0 in | 10 mph | 7 |
| Mon, Aug 24 | 🌦️ Drizzle | 88° / 76° | 23% · 0,1 in | 15 mph | 8 |
| Tue, Aug 25 | 🌦️ Light showers | 89° / 72° | 48% · 0,2 in | 14 mph | 8 |
| Wed, Aug 26 | 🌦️ Drizzle | 91° / 75° | 51% · 0,1 in | 13 mph | 8 |
| Thu, Aug 27 | 🌦️ Light drizzle | 88° / 76° | 52% · 0,0 in | 11 mph | 6 |
| Fri, Aug 28 | 🌦️ Light drizzle | 90° / 77° | 51% · 0,1 in | 15 mph | 8 |
| Sat, Aug 29 | ⛈️ Thunderstorm | 91° / 79° | 47% · 0,2 in | 12 mph | 7 |
| Sun, Aug 30 | ⛈️ Thunderstorm | 90° / 79° | 42% · 0,1 in | 14 mph | 8 |
| Mon, Aug 31 | ⛈️ Thunderstorm with hail | 91° / 78° | 27% · 0,4 in | 12 mph | 8 |
| Tue, Sep 1 | 🌦️ Light showers | 89° / 74° | 19% · 0,2 in | 8 mph | 8 |
| Wed, Sep 2 | 🌦️ Light drizzle | 94° / 78° | 22% · 0,0 in | 13 mph | 8 |
| Thu, Sep 3 | ☁️ Overcast | 91° / 78° | 29% | 11 mph | 8 |
| Fri, Sep 4 | 🌦️ Light showers | 86° / 75° | 23% · 0,3 in | 15 mph | 5 |
The two-week trend
Steady. The second week averages within a degree of the first, so no big change is signalled.
The window averages 88°F against a August normal of 86°F - right on average.
Rainfall over the next 7 days is close to normal for August (1,7 in against a typical 1,6 in).
What this means for Charleston
Today is about average for August. The forecast high of 88°F is in line with the 86°F typical for this month.
A 48% chance means rain is likely somewhere nearby at some point - carry a layer, but do not cancel. Around 1,2 in is forecast, which is enough to soak trails and slow traffic.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 67°F.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- A packable rain shell - 5 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, August and December - historically the least comfortable months here.
See the Charleston forecast by time range
Charleston weather - more answers
Explore Charleston
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Charleston?
Charleston is a city in South Carolina. Its coordinates are 32.7765, -79.9311. It lies in North America.
What is the weather like in Charleston right now?
It is currently 73°F (23°C) with heavy rain. Humidity is 94% and wind is 7 mph.
When is the best time to visit Charleston?
March, April, June, September and November offer the most comfortable conditions in Charleston, which has a temperate climate. January, August and December are usually the hardest months for outdoor plans.
What time zone is Charleston in?
Charleston observes America/New_York (UTC-04:00). The local time is 7:14 AM.
How many people live in Charleston?
Charleston has a population of approximately 150.000.
What is the nearest airport to Charleston?
The closest airports are Hartsfield-Jackson Atlanta International Airport (ATL), 267 mi away.
What are the top things to do in Charleston?
Popular options include Hunting Island State Park, Congaree National Park, Myrtle Beach and Chimney Rock State Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-us) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 23, 2026 at 7:14 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
