Unicoi, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Unicoi, a town in Unicoi County, Tennessee.
Tonight
67°F
Scattered Showers And Thunderstorms then Partly Cloudy
Scattered showers and thunderstorms before 11pm. Partly cloudy, with a low around 67. South wind around 0 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Unicoi
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 67°F | Scattered Showers And Thunderstorms then Partly Cloudy | 0 mph | 49% |
| Saturday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 mph | 21% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 38% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 62% |
| Sunday Night | 66°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 mph | 62% |
| Monday | 87°F | Slight Chance Showers And Thunderstorms | 0 mph | 65% |
| Monday Night | 66°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph S | 65% |
| Tuesday | 82°F | Showers And Thunderstorms | 0 to 5 mph S | 83% |
| Tuesday Night | 64°F | Showers And Thunderstorms | 5 mph SE | 83% |
| Wednesday | 76°F | Rain Showers Likely | 5 mph SE | 60% |
| Wednesday Night | 60°F | Showers And Thunderstorms Likely | 5 to 10 mph SE | 60% |
| Thursday | 75°F | Chance Rain Showers | 0 to 5 mph W | 36% |
| Thursday Night | 57°F | Chance Rain Showers | 0 to 5 mph NE | 36% |
| Friday | 76°F | Partly Sunny then Chance Rain Showers | 0 to 5 mph N | 25% |
Forecast source: National Weather Service (api.weather.gov) for Unicoi (36.222, -82.329). Updated through the day.
Growing snapshot for Unicoi
Last spring frost
Apr 21
First fall frost
Oct 23
Growing season
183 days
Hardiness zone
7a
More local growing data for Unicoi: nearby ZIP 37692 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Erwin 1 W, Tn (7.4 mi from Unicoi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.