Summertown, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Summertown, a community in Lawrence County, Tennessee.
Tonight
61°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a low around 61. South southeast wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
7-day forecast for Summertown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Showers And Thunderstorms | 10 mph SSE | 99% |
| Wednesday | 74°F | Showers And Thunderstorms | 5 to 10 mph SW | 93% |
| Wednesday Night | 45°F | Areas Of Fog | 0 mph | 0% |
| Thursday | 72°F | Areas Of Fog then Mostly Sunny | 0 mph | 0% |
| Thursday Night | 44°F | Areas Of Fog | 0 mph | 0% |
| Friday | 69°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph NNW | 1% |
| Friday Night | 39°F | Partly Cloudy | 0 to 5 mph NNW | 1% |
| Saturday | 61°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 34°F | Partly Cloudy | 0 mph | 1% |
| Sunday | 62°F | Mostly Sunny | 0 to 5 mph NNW | 7% |
| Sunday Night | 33°F | Mostly Clear | 0 mph | 5% |
| Monday | 64°F | Sunny | 0 to 5 mph NW | 1% |
| Monday Night | 34°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 68°F | Sunny | 0 to 5 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Summertown (35.434, -87.308). Updated through the day.
Growing snapshot for Summertown
Last spring frost
Apr 5
First fall frost
Oct 28
Growing season
204 days
Hardiness zone
7b
More local growing data for Summertown: nearby ZIP 38483 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mt Pleasant 1N, Tn (10.9 mi from Summertown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.