Greenback, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Greenback, a city in Loudon County, Tennessee.
This Afternoon
81°F
Sunny
Sunny. High near 81, with temperatures falling to around 77 in the afternoon. South wind around 10 mph.
7-day forecast for Greenback
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Sunny | 10 mph S | 2% |
| Tonight | 63°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph SE | 18% |
| Wednesday | 74°F | Showers And Thunderstorms | 10 mph S | 95% |
| Wednesday Night | 61°F | Showers And Thunderstorms Likely | 0 to 10 mph SW | 64% |
| Thursday | 75°F | Chance Rain Showers | 0 to 5 mph W | 25% |
| Thursday Night | 51°F | Mostly Cloudy | 0 mph | 11% |
| Friday | 72°F | Mostly Sunny | 0 to 5 mph NW | 10% |
| Friday Night | 45°F | Partly Cloudy | 0 to 5 mph N | 4% |
| Saturday | 65°F | Mostly Sunny | 0 to 10 mph N | 1% |
| Saturday Night | 37°F | Mostly Cloudy | 0 to 5 mph NE | 1% |
| Sunday | 64°F | Partly Sunny | 0 to 5 mph N | 6% |
| Sunday Night | 35°F | Partly Cloudy | 0 to 5 mph NW | 10% |
| Monday | 64°F | Mostly Sunny | 0 to 5 mph N | 10% |
| Monday Night | 35°F | Mostly Clear | 0 to 5 mph NW | 5% |
Forecast source: National Weather Service (api.weather.gov) for Greenback (35.647, -84.168). Updated through the day.
Growing snapshot for Greenback
Last spring frost
Apr 5
First fall frost
Nov 1
Growing season
210 days
Hardiness zone
7b
More local growing data for Greenback: nearby ZIP 37742 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lenoir City, Tn (9 mi from Greenback). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.