Unionville, TN Weather & Growing Conditions
Today
72°F
Showers And Thunderstorms
Showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms between 2pm and 3pm. Mostly cloudy. High near 72, with temperatures falling to around 67 in the afternoon. South southwest wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Showers And Thunderstorms | 5 to 15 mph SSW | 93% |
| Tonight | 45°F | Areas Of Fog | 0 to 5 mph W | 0% |
| Thursday | 74°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph W | 0% |
| Thursday Night | 41°F | Areas Of Fog | 0 mph | 0% |
| Friday | 71°F | Areas Of Fog then Sunny | 0 to 10 mph NNW | 1% |
| Friday Night | 38°F | Partly Cloudy | 5 to 10 mph N | 0% |
| Saturday | 61°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 31°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Sunday | 60°F | Mostly Sunny | 0 to 10 mph N | 1% |
| Sunday Night | 30°F | Mostly Clear | 0 to 5 mph N | 0% |
| Monday | 63°F | Sunny | 0 to 5 mph NNW | 0% |
| Monday Night | 31°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 68°F | Sunny | 0 to 5 mph W | 1% |
| Tuesday Night | 34°F | Mostly Clear | 0 mph | 0% |
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 Nov 4, 2026.