Charleston, TN Weather & Growing Conditions
Today
88°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 11am. Mostly sunny. High near 88, with temperatures falling to around 85 in the afternoon. Heat index values as high as 95. West wind around 0 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Chance Showers And Thunderstorms | 0 mph | 48% |
| Tonight | 69°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 mph | 41% |
| Wednesday | 87°F | Chance Showers And Thunderstorms | 0 mph | 53% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms | 0 mph | 51% |
| Thursday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 51% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 51% |
| Friday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 37% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 0 mph | 37% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 0 mph | 52% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 0 mph | 52% |
| Sunday | 89°F | Chance Showers And Thunderstorms | 0 mph | 41% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms | 0 mph | 41% |
| Monday | 90°F | Chance Showers And Thunderstorms | 0 mph | 38% |
| Monday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 38% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Charleston, TN
Last spring frost
Apr 6
First fall frost
Oct 30
Growing season
206 days
Hardiness zone
7b
Explore more for Charleston, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Cleveland Fltr Plt, Tn (5.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.