Summertown, TN Weather & Growing Conditions
Today
87°F
Patchy Fog then Slight Chance Showers And Thunderstorms
Patchy fog before 9am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. North northeast wind 0 to 5 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 0 to 5 mph NNE | 15% |
| Tonight | 68°F | Patchy Fog | 0 mph | 12% |
| Wednesday | 88°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 0 mph | 22% |
| Wednesday Night | 69°F | Slight Chance Showers And Thunderstorms then Patchy Fog | 0 mph | 22% |
| Thursday | 90°F | Sunny | 0 to 5 mph SSW | 7% |
| Thursday Night | 71°F | Partly Cloudy | 0 to 5 mph S | 11% |
| Friday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SSW | 31% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 0 mph | 31% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 49% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 49% |
| Sunday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 38% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 38% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SSW | 27% |
| Monday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 27% |
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 Aug 4, 2026.