Unionville, TN Weather & Growing Conditions
Today
88°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Heat index values as high as 97. North wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph N | 22% |
| Tonight | 68°F | Slight Chance Showers And Thunderstorms then Areas Of Fog | 0 to 5 mph NNE | 18% |
| Wednesday | 88°F | Chance Showers And Thunderstorms | 0 mph | 32% |
| Wednesday Night | 70°F | Slight Chance Showers And Thunderstorms then Patchy Fog | 0 mph | 24% |
| Thursday | 91°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSW | 19% |
| Thursday Night | 71°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SSE | 19% |
| Friday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph S | 31% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 31% |
| Saturday | 90°F | Slight Chance Showers And Thunderstorms | 5 mph SSW | 56% |
| Saturday Night | 70°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 mph | 56% |
| Sunday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 37% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 37% |
| Monday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SSW | 29% |
| Monday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 29% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Unionville, TN
Last spring frost
Apr 14
First fall frost
Oct 25
Growing season
192 days
Hardiness zone
7b
Explore more for Unionville, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Christiana 5W, Tn (7.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.