Summertown, TN Weather & Growing Conditions
Overnight
61°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a low around 61. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Showers And Thunderstorms | 10 mph S | 85% |
| Wednesday | 71°F | Showers And Thunderstorms | 5 to 15 mph SW | 93% |
| Wednesday Night | 44°F | Areas Of Fog | 0 to 5 mph W | 0% |
| Thursday | 73°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph W | 0% |
| Thursday Night | 44°F | Areas Of Fog | 0 mph | 0% |
| Friday | 69°F | Areas Of Fog then Sunny | 0 to 5 mph NNW | 0% |
| Friday Night | 39°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 60°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 33°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 58°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 32°F | Mostly Clear | 0 mph | 0% |
| Monday | 62°F | Sunny | 0 to 5 mph NW | 0% |
| Monday Night | 35°F | Clear | 0 mph | 1% |
| Tuesday | 67°F | Sunny | 0 to 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Summertown, TN
Last spring frost
Apr 5
First fall frost
Oct 28
Growing season
204 days
Hardiness zone
7b
Explore more for Summertown, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Mt Pleasant 1N, Tn (10.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.