St. Joseph, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Joseph, a city in Lawrence County, Tennessee.
Today
88°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 88. North wind 0 to 5 mph. Chance of precipitation is 20%.
7-day forecast for St. Joseph
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 17% |
| Tonight | 69°F | Patchy Fog | 0 to 5 mph NNE | 10% |
| Wednesday | 89°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 0 to 5 mph NNW | 19% |
| Wednesday Night | 70°F | Slight Chance Showers And Thunderstorms then Patchy Fog | 0 mph | 18% |
| Thursday | 92°F | Sunny | 0 to 5 mph SSW | 6% |
| Thursday Night | 72°F | Partly Cloudy | 0 to 5 mph SE | 8% |
| Friday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 22% |
| Friday Night | 71°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSE | 22% |
| Saturday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 38% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 38% |
| Sunday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 25% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 25% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SSW | 25% |
| Monday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 25% |
Forecast source: National Weather Service (api.weather.gov) for St. Joseph (35.033, -87.501). Updated through the day.
Growing snapshot for St. Joseph
Last spring frost
Mar 29
First fall frost
Nov 4
Growing season
219 days
Hardiness zone
7b
More local growing data for St. Joseph: nearby ZIP 38481 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lexington, Al (8 mi from St. Joseph). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.