Siracusaville, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Siracusaville, a community in St. Mary County, Louisiana.
This Afternoon
91°F
Sunny
Sunny, with a high near 91. Heat index values as high as 97. Northeast wind around 5 mph.
7-day forecast for Siracusaville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 91°F | Sunny | 5 mph NE | 0% |
| Tonight | 73°F | Clear | 0 to 5 mph E | 0% |
| Saturday | 92°F | Sunny | 0 to 5 mph E | 4% |
| Saturday Night | 75°F | Mostly Clear | 0 to 5 mph SE | 3% |
| Sunday | 93°F | Sunny then Slight Chance Showers And Thunderstorms | 0 mph | 16% |
| Sunday Night | 77°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 mph | 16% |
| Monday | 92°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph NE | 42% |
| Monday Night | 76°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 42% |
| Tuesday | 93°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph NE | 34% |
| Tuesday Night | 77°F | Chance Showers And Thunderstorms then Mostly Clear | 0 mph | 34% |
| Wednesday | 92°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph NE | 31% |
| Wednesday Night | 76°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph NE | 31% |
| Thursday | 90°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph NE | 18% |
| Thursday Night | 74°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 5 mph NE | 18% |
Forecast source: National Weather Service (api.weather.gov) for Siracusaville (29.688, -91.151). Updated through the day.
Growing snapshot for Siracusaville
Last spring frost
Jan 30
First fall frost
Jan 1
Growing season
335 days
Hardiness zone
9b
More local growing data for Siracusaville: nearby ZIP 70340 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Morgan City, La (4.4 mi from Siracusaville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.