Wynnburg, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wynnburg, a community in Lake County, Tennessee.
Today
67°F
Mostly Sunny
Mostly sunny. High near 67, with temperatures falling to around 63 in the afternoon. West wind 5 to 10 mph.
7-day forecast for Wynnburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 67°F | Mostly Sunny | 5 to 10 mph W | 0% |
| Tonight | 45°F | Mostly Clear | 0 to 5 mph WSW | 0% |
| Thursday | 70°F | Sunny | 0 to 5 mph SW | 0% |
| Thursday Night | 47°F | Partly Cloudy | 0 to 5 mph WNW | 0% |
| Friday | 64°F | Mostly Sunny | 5 to 15 mph N | 0% |
| Friday Night | 41°F | Mostly Clear | 5 to 10 mph N | 0% |
| Saturday | 59°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 36°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Sunday | 62°F | Mostly Sunny | 0 to 10 mph N | 0% |
| Sunday Night | 36°F | Mostly Clear | 0 mph | 0% |
| Monday | 65°F | Sunny | 0 to 5 mph WSW | 0% |
| Monday Night | 39°F | Clear | 0 mph | 1% |
| Tuesday | 69°F | Sunny | 0 to 5 mph WSW | 1% |
| Tuesday Night | 42°F | Mostly Clear | 0 mph | 0% |
Forecast source: National Weather Service (api.weather.gov) for Wynnburg (36.330, -89.469). Updated through the day.
Growing snapshot for Wynnburg
Last spring frost
Apr 3
First fall frost
Nov 1
Growing season
211 days
Hardiness zone
7b
More local growing data for Wynnburg: nearby ZIP 38077 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Samburg Wr, Tn (12.8 mi from Wynnburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.