Charleston, WV Weather
Charleston hourly forecast: next 24 hours
Today's high of 75°F (24°C) is about 8°F (4°C) below the typical August high of 83°F (29°C).
Current conditions in detail
Charleston weather tomorrow (Tuesday, August 18)
Tomorrow in Charleston looks overcast, with a high of 51° and an overnight low of 48°. Precipitation chance is modest at 20%. Winds top out near 15 mph, and the UV index reaches 8 (very high).
Charleston 14-day forecast
About the weather in Charleston
Weather in Charleston is shaped by its humid subtropical climate - expect hot, humid summers and generally mild winters. July afternoons typically reach 85°F (30°C), while January highs hover near 44°F (6°C). Annual precipitation averages 52.0 inches (1320 mm) over about 150 rainy days.
Charleston weather: quick facts
- Hottest month: July - highs near 85°F (30°C)
- Coldest month: January - highs near 44°F (6°C)
- Record high: 96°F (36°C) · Record low: -13°F (-25°C) (2015–2024)
- Wettest month: July (15 rainy days) · Sunniest: June (11.7 h sun/day)
- Climate type: humid subtropical - hot, humid summers and generally mild winters
- Snow: about 9 days a year
Temperatures through the year
The warmest stretch of the year centers on July. Highs average 85°F (30°C) and overnight lows stay near 68°F (20°C). The coolest month is January, with typical highs of 44°F (6°C) and lows around 28°F (-2°C). Based on 2015–2024 weather data, temperatures have reached as high as 96°F (36°C) and dropped as low as -13°F (-25°C).
Rain, sun and snow
July is usually the wettest month. It brings about 5.3 inches (135 mm) of rain over 15 days, while November is the driest. June brings the most sunshine, averaging 11.7 hours of sun a day. Snow falls on about 9 days in a typical year, mostly from December through April.
Season by season
Spring (March through May)
Spring in Charleston is crisp but comfortable, with daytime highs averaging 66°F (19°C) and nights around 46°F (8°C); expect showers on roughly 41 days across the season.
Summer (June through August)
Summer in Charleston brings hot afternoons, with daytime highs averaging 83°F (28°C) and nights around 66°F (19°C); expect showers on roughly 43 days across the season. With the humidity factored in, afternoons often feel hotter than the thermometer reads - run the numbers through the humidity and dew point converter to see why.
Fall (September through November)
Fall in Charleston is mild and warm, with daytime highs averaging 68°F (20°C) and nights around 50°F (10°C); expect showers on roughly 27 days across the season.
Winter (December through February)
Winter in Charleston is chilly, with daytime highs averaging 48°F (9°C) and nights around 31°F (-1°C); expect showers on roughly 38 days across the season, plus around 7 snowy days.
Average temperatures in Charleston by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 44° | 28° | 13 | 4.2 in | 5.1 h/day | 70% |
| February | 50° | 31° | 13 | 5.2 in | 6.2 h/day | 68% |
| March | 57° | 37° | 13 | 4.3 in | 7.5 h/day | 66% |
| April | 66° | 46° | 13 | 4.3 in | 8.9 h/day | 68% |
| May | 74° | 56° | 16 | 5.2 in | 10.1 h/day | 76% |
| June | 81° | 63° | 14 | 4.8 in | 11.7 h/day | 75% |
| July | 85° | 68° | 15 | 5.3 in | 11.3 h/day | 77% |
| August | 83° | 66° | 14 | 4.6 in | 10.9 h/day | 78% |
| September | 79° | 61° | 8 | 3.7 in | 9.7 h/day | 75% |
| October | 69° | 51° | 9 | 3.3 in | 8.2 h/day | 72% |
| November | 57° | 39° | 10 | 2.9 in | 6.8 h/day | 69% |
| December | 50° | 34° | 13 | 4.0 in | 5.2 h/day | 72% |