Franklin, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Franklin, a city in St. Mary County, Louisiana.
Today
92°F
Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Heat index values as high as 101. West wind 0 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Franklin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 92°F | Sunny then Chance Showers And Thunderstorms | 0 to 10 mph W | 29% |
| Tonight | 76°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph SW | 18% |
| Wednesday | 93°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 30% |
| Wednesday Night | 75°F | Mostly Clear | 0 to 5 mph SW | 7% |
| Thursday | 92°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 50% |
| Thursday Night | 75°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph SE | 50% |
| Friday | 93°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SE | 41% |
| Friday Night | 74°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph E | 41% |
| Saturday | 92°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 42% |
| Saturday Night | 75°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph E | 42% |
| Sunday | 91°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 64% |
| Sunday Night | 75°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 64% |
| Monday | 91°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 57% |
| Monday Night | 76°F | Showers And Thunderstorms Likely then Partly Cloudy | 0 to 5 mph S | 57% |
Forecast source: National Weather Service (api.weather.gov) for Franklin (29.785, -91.510). Updated through the day.
Growing snapshot for Franklin
Last spring frost
Feb 11
First fall frost
Dec 8
Growing season
303 days
Hardiness zone
9b
More local growing data for Franklin: nearby ZIP 70538 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Franklin 3 Nw, La (3.6 mi from Franklin). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.