St. Joseph, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Joseph, a town in Tensas County, Louisiana.
This Afternoon
81°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy. High near 81, with temperatures falling to around 77 in the afternoon. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for St. Joseph
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Showers And Thunderstorms Likely | 5 mph S | 55% |
| Tonight | 59°F | Showers And Thunderstorms | 0 to 10 mph WSW | 100% |
| Wednesday | 75°F | Mostly Sunny | 0 to 5 mph NW | 2% |
| Wednesday Night | 48°F | Partly Cloudy then Patchy Fog | 0 mph | 0% |
| Thursday | 77°F | Sunny | 0 mph | 2% |
| Thursday Night | 51°F | Partly Cloudy | 0 mph | 5% |
| Friday | 76°F | Sunny | 0 to 10 mph N | 2% |
| Friday Night | 44°F | Mostly Clear | 0 to 5 mph N | 1% |
| Saturday | 69°F | Mostly Sunny | 5 to 10 mph N | 1% |
| Saturday Night | 40°F | Partly Cloudy | 0 to 5 mph N | 8% |
| Sunday | 67°F | Mostly Sunny | 0 to 10 mph N | 5% |
| Sunday Night | 38°F | Mostly Clear | 0 to 5 mph N | 1% |
| Monday | 70°F | Sunny | 0 to 5 mph N | 0% |
| Monday Night | 38°F | Clear | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov) for St. Joseph (31.920, -91.240). Updated through the day.
Growing snapshot for St. Joseph
Last spring frost
Mar 13
First fall frost
Nov 10
Growing season
242 days
Hardiness zone
8b
More local growing data for St. Joseph: nearby ZIP 71366 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, St Joseph 3 N, La (7 mi from St. Joseph). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.