South Pittsburg, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Pittsburg, a city in Marion County, Tennessee.
This Afternoon
96°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Mostly sunny. High near 96, with temperatures falling to around 90 in the afternoon. Heat index values as high as 105. Northeast wind around 0 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for South Pittsburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 96°F | Chance Showers And Thunderstorms | 0 mph | 29% |
| Tonight | 70°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 mph | 22% |
| Sunday | 94°F | Sunny then Chance Showers And Thunderstorms | 0 mph | 32% |
| Sunday Night | 70°F | Partly Cloudy | 0 mph | 11% |
| Monday | 94°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 44% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 mph | 63% |
| Tuesday | 89°F | Showers And Thunderstorms | 0 mph | 78% |
| Tuesday Night | 66°F | Showers And Thunderstorms | 0 mph | 78% |
| Wednesday | 82°F | Rain Showers Likely | 0 to 5 mph SE | 63% |
| Wednesday Night | 63°F | Showers And Thunderstorms Likely | 0 to 5 mph NE | 63% |
| Thursday | 81°F | Mostly Sunny then Slight Chance Rain Showers | 0 to 5 mph N | 15% |
| Thursday Night | 60°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 5 mph N | 15% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph N | 11% |
| Friday Night | 59°F | Partly Cloudy | 5 mph N | 11% |
Forecast source: National Weather Service (api.weather.gov) for South Pittsburg (35.011, -85.718). Updated through the day.
Growing snapshot for South Pittsburg
Last spring frost
Apr 7
First fall frost
Oct 31
Growing season
208 days
Hardiness zone
7b
More local growing data for South Pittsburg: nearby ZIP 37380 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Griffith Creek
Jasper
Kimball
Monteagle
New Hope
Powells Crossroads
Sequatchie
Signal Mountain
Whiteside
Whitwell
Climate data from the nearest NOAA station, Bridgeport 5 Nw, Al (6.9 mi from South Pittsburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.