Smithville, TN Weather & Growing Conditions
This Afternoon
97°F
Chance Showers And Thunderstorms
A slight chance of rain showers between 2pm and 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then a slight chance of showers and thunderstorms. Mostly sunny. High near 97, with temperatures falling to around 91 in the afternoon. Heat index values as high as 102. West 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 |
|---|---|---|---|---|
| This Afternoon | 97°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 26% |
| Tonight | 69°F | Slight Chance Rain Showers then Mostly Clear | 0 mph | 19% |
| Sunday | 96°F | Sunny then Slight Chance Rain Showers | 0 to 5 mph SW | 18% |
| Sunday Night | 69°F | Slight Chance Rain Showers then Partly Cloudy | 0 mph | 16% |
| Monday | 95°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 29% |
| Monday Night | 66°F | Chance Showers And Thunderstorms then Chance Rain Showers | 0 to 5 mph SSE | 42% |
| Tuesday | 89°F | Showers And Thunderstorms Likely | 0 to 5 mph NNE | 67% |
| Tuesday Night | 63°F | Showers And Thunderstorms Likely | 0 to 5 mph NNE | 67% |
| Wednesday | 81°F | Rain Showers Likely | 0 to 5 mph NNW | 61% |
| Wednesday Night | 60°F | Showers And Thunderstorms Likely | 0 to 5 mph N | 55% |
| Thursday | 79°F | Slight Chance Rain Showers | 0 to 5 mph N | 23% |
| Thursday Night | 57°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 5 mph N | 23% |
| Friday | 79°F | Mostly Sunny | 0 to 10 mph NNE | 7% |
| Friday Night | 56°F | Partly Cloudy | 0 to 5 mph NNE | 7% |
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 Sep 19, 2026.