Unionville, TN Weather & Growing Conditions
This Afternoon
74°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms between 2pm and 3pm. Partly sunny. High near 74, with temperatures falling to around 69 in the afternoon. West southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Chance Showers And Thunderstorms | 5 to 15 mph WSW | 35% |
| Tonight | 45°F | Areas Of Fog | 0 to 5 mph WNW | 0% |
| Thursday | 69°F | Areas Of Fog then Partly Sunny | 0 to 5 mph NW | 0% |
| Thursday Night | 40°F | Areas Of Fog | 0 mph | 0% |
| Friday | 67°F | Areas Of Fog then Sunny | 0 to 10 mph N | 0% |
| Friday Night | 36°F | Partly Cloudy | 5 to 10 mph N | 0% |
| Saturday | 58°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 29°F | Mostly Clear | 0 to 5 mph N | 0% |
| Sunday | 60°F | Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 29°F | Mostly Clear | 0 to 5 mph N | 0% |
| Monday | 64°F | Sunny | 0 to 5 mph N | 0% |
| Monday Night | 31°F | Mostly Clear | 0 mph | 4% |
| Tuesday | 65°F | Mostly Sunny | 0 mph | 2% |
| Tuesday Night | 33°F | Mostly Clear | 0 mph | 2% |
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.