Kingsport, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kingsport, a city in Sullivan County, Tennessee.
Tonight
67°F
Partly Cloudy
Partly cloudy, with a low around 67. Wind around 0 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Kingsport
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 67°F | Partly Cloudy | 0 mph | 9% |
| Saturday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 mph | 19% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms then Mostly Clear | 0 mph | 28% |
| Sunday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 52% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 0 mph | 52% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 53% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 0 mph | 53% |
| Tuesday | 85°F | Showers And Thunderstorms | 0 mph | 80% |
| Tuesday Night | 63°F | Showers And Thunderstorms | 0 to 5 mph E | 80% |
| Wednesday | 80°F | Showers And Thunderstorms Likely | 5 mph SE | 60% |
| Wednesday Night | 60°F | Showers And Thunderstorms Likely | 0 to 5 mph E | 60% |
| Thursday | 77°F | Chance Rain Showers | 0 to 5 mph NE | 33% |
| Thursday Night | 57°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 5 mph N | 23% |
| Friday | 79°F | Partly Sunny then Slight Chance Rain Showers | 0 to 5 mph N | 15% |
Forecast source: National Weather Service (api.weather.gov) for Kingsport (36.519, -82.543). Updated through the day.
Growing snapshot for Kingsport
Last spring frost
Apr 9
First fall frost
Oct 29
Growing season
203 days
Hardiness zone
7b
More local growing data for Kingsport: nearby ZIP 37660 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Kingsport, Tn (2.5 mi from Kingsport). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.