St. Joseph, LA Weather & Growing Conditions
Today
94°F
Patchy Fog then Sunny
Patchy fog before 8am. Sunny, with a high near 94. Heat index values as high as 99. North wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 94°F | Patchy Fog then Sunny | 0 to 5 mph N | 1% |
| Tonight | 72°F | Mostly Clear | 0 to 5 mph ENE | 0% |
| Wednesday | 95°F | Patchy Fog then Sunny | 0 mph | 3% |
| Wednesday Night | 73°F | Mostly Clear | 0 mph | 4% |
| Thursday | 95°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSW | 21% |
| Thursday Night | 73°F | Slight Chance Showers And Thunderstorms then Patchy Fog | 0 to 5 mph S | 21% |
| Friday | 95°F | Patchy Fog then Sunny | 0 to 5 mph SSE | 12% |
| Friday Night | 74°F | Mostly Clear | 0 mph | 13% |
| Saturday | 95°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 16% |
| Saturday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 16% |
| Sunday | 95°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSE | 19% |
| Sunday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSE | 19% |
| Monday | 94°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 32% |
| Monday Night | 74°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 32% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Joseph, LA
Last spring frost
Mar 13
First fall frost
Nov 10
Growing season
242 days
Hardiness zone
8b
Explore more for St. Joseph, LA: full frost dates · planting calendar · Louisiana frost dates
Climate data from the nearest NOAA station, St Joseph 3 N, La (7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.