Petersburg, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Petersburg, a town in Lincoln County, Tennessee.
Today
88°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. North northeast wind 0 to 5 mph. Chance of precipitation is 30%.
7-day forecast for Petersburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph NNE | 27% |
| Tonight | 68°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 19% |
| Wednesday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 53% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 48% |
| Thursday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSW | 22% |
| Thursday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 22% |
| Friday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 39% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 0 mph | 39% |
| Saturday | 89°F | Slight Chance Showers And Thunderstorms | 0 mph | 56% |
| Saturday Night | 70°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 mph | 56% |
| Sunday | 89°F | Chance Showers And Thunderstorms | 0 mph | 39% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 39% |
| Monday | 90°F | Chance Showers And Thunderstorms | 0 mph | 34% |
| Monday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 34% |
Forecast source: National Weather Service (api.weather.gov) for Petersburg (35.317, -86.641). Updated through the day.
Growing snapshot for Petersburg
Last spring frost
Apr 14
First fall frost
Oct 22
Growing season
192 days
Hardiness zone
7b
More local growing data for Petersburg: nearby ZIP 37144 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lewisburg Exp Stn, Tn (11.4 mi from Petersburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.