Smithville, TN Weather & Growing Conditions
Today
87°F
Patchy Fog then Chance Showers And Thunderstorms
Patchy fog before 10am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 87. North northeast wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Patchy Fog then Chance Showers And Thunderstorms | 0 to 5 mph NNE | 30% |
| Tonight | 68°F | Slight Chance Showers And Thunderstorms then Patchy Fog | 0 mph | 21% |
| Wednesday | 87°F | Chance Showers And Thunderstorms | 0 mph | 44% |
| Wednesday Night | 68°F | Chance Showers And Thunderstorms then Patchy Fog | 0 mph | 36% |
| Thursday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SSW | 34% |
| Thursday Night | 69°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 34% |
| Friday | 89°F | Chance Showers And Thunderstorms | 5 mph S | 47% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 47% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 67% |
| Saturday Night | 69°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 mph | 67% |
| Sunday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 42% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 42% |
| Monday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 33% |
| Monday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 33% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Smithville, TN
Last spring frost
Apr 18
First fall frost
Oct 22
Growing season
187 days
Hardiness zone
7b
Explore more for Smithville, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Smithville 2 Se, Tn (1.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.