Charleston County Weather Forecast
Charleston County weather: 85°F, clear sky. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Will it rain in Charleston County?
No - rain is unlikely in Charleston County today.
Rain is very unlikely today - plans do not need a backup.
Over the next 7 days, about 2,0 in of precipitation is forecast.
Rainfall over the next 7 days is close to normal for August (2,0 in against a typical 1,6 in).
16-day forecast for Charleston County
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Fri, Aug 21 | ☁️ Overcast | 89° / 79° | 8% | 13 mph | 8 |
| Sat, Aug 22 | 🌧️ Heavy rain | 86° / 74° | 37% · 0,3 in | 10 mph | 8 |
| Sun, Aug 23 | ☁️ Overcast | 95° / 74° | 17% | 12 mph | 8 |
| Mon, Aug 24 | 🌦️ Light drizzle | 94° / 76° | 11% · 0,0 in | 12 mph | 8 |
| Tue, Aug 25 | ⛈️ Thunderstorm | 89° / 73° | 39% · 1,0 in | 15 mph | 5 |
| Wed, Aug 26 | 🌦️ Light showers | 86° / 73° | 39% · 0,2 in | 11 mph | 8 |
| Thu, Aug 27 | ⛈️ Thunderstorm | 90° / 77° | 37% · 0,5 in | 15 mph | 7 |
| Fri, Aug 28 | 🌦️ Light showers | 89° / 77° | 38% · 0,3 in | 13 mph | 8 |
| Sat, Aug 29 | 🌦️ Light drizzle | 91° / 77° | 30% · 0,1 in | 11 mph | 8 |
| Sun, Aug 30 | 🌦️ Light drizzle | 91° / 78° | 28% · 0,0 in | 12 mph | 8 |
| Mon, Aug 31 | 🌦️ Light drizzle | 91° / 79° | 16% · 0,0 in | 14 mph | 8 |
| Tue, Sep 1 | ⛅ Partly cloudy | 92° / 79° | 36% | 14 mph | 8 |
| Wed, Sep 2 | ☁️ Overcast | 97° / 80° | 33% | 12 mph | 8 |
| Thu, Sep 3 | 🌦️ Light showers | 97° / 76° | 24% · 0,3 in | 20 mph | 8 |
| Fri, Sep 4 | 🌧️ Heavy drizzle | 91° / 76° | 27% · 0,2 in | 15 mph | 6 |
| Sat, Sep 5 | 🌦️ Light drizzle | 85° / 79° | 29% · 0,0 in | 13 mph | 7 |
What this means for Charleston County
Today is slightly warmer than average for August. The forecast high of 89°F is 3.4°F above the 86°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
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+
- If your dates are flexible, avoid January, August and December - historically the least comfortable months here.
See the Charleston County forecast by time range
Charleston County weather - more answers
Explore Charleston County
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Weather for related places
Frequently asked questions
Where is Charleston County?
Charleston County is a county in South Carolina. Its coordinates are 32.7765, -79.9311. It lies in North America.
What is the weather like in Charleston County right now?
It is currently 85°F (30°C) with clear sky. Humidity is 73% and wind is 11 mph.
When is the best time to visit Charleston County?
March, April, June, September and November offer the most comfortable conditions in Charleston County, which has a temperate climate. January, August and December are usually the hardest months for outdoor plans.
What time zone is Charleston County in?
Charleston County observes America/New_York (UTC-04:00). The local time is 10:51 AM.
How many people live in Charleston County?
Charleston County has a population of approximately 410.000.
What is the nearest airport to Charleston County?
The closest airports are Hartsfield-Jackson Atlanta International Airport (ATL), 267 mi away.
What are the top things to do in Charleston County?
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 (us-counties) - 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 22, 2026 at 10:51 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
