Mercer, TN Weather & Growing Conditions
Today
87°F
Sunny
Sunny, with a high near 87. North northeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Sunny | 5 mph NNE | 0% |
| Tonight | 68°F | Mostly Clear | 0 to 5 mph NNE | 0% |
| Wednesday | 90°F | Mostly Sunny | 0 to 5 mph WNW | 7% |
| Wednesday Night | 70°F | Mostly Clear | 0 to 5 mph SE | 4% |
| Thursday | 92°F | Sunny | 0 to 5 mph SW | 3% |
| Thursday Night | 73°F | Partly Cloudy | 0 to 5 mph SSE | 10% |
| Friday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SSW | 20% |
| Friday Night | 72°F | Slight Chance Showers And Thunderstorms | 0 mph | 20% |
| Saturday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 34% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 34% |
| Sunday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSW | 21% |
| Sunday Night | 72°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 21% |
| Monday | 92°F | Mostly Sunny | 0 to 5 mph SSW | 10% |
| Monday Night | 73°F | Partly Cloudy | 0 mph | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mercer, TN
Last spring frost
Apr 5
First fall frost
Oct 29
Growing season
207 days
Hardiness zone
7b
Explore more for Mercer, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Jackson Mckellar Ap, Tn (11.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.