St. James, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. James, a community in St. James County, Louisiana.
Today
94°F
Sunny
Sunny. High near 94, with temperatures falling to around 92 in the afternoon. West wind around 0 mph.
7-day forecast for St. James
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 94°F | Sunny | 0 mph | 7% |
| Tonight | 75°F | Mostly Clear | 0 mph | 10% |
| Wednesday | 95°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 31% |
| Wednesday Night | 74°F | Mostly Clear | 0 to 5 mph S | 8% |
| Thursday | 94°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SE | 41% |
| Thursday Night | 73°F | Chance Showers And Thunderstorms then Mostly Clear | 0 mph | 41% |
| Friday | 93°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph E | 33% |
| Friday Night | 74°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph E | 33% |
| Saturday | 93°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 41% |
| Saturday Night | 74°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph E | 41% |
| Sunday | 92°F | Showers And Thunderstorms Likely | 0 to 5 mph E | 64% |
| Sunday Night | 74°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 64% |
| Monday | 92°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 74% |
| Monday Night | 74°F | Showers And Thunderstorms Likely | 0 mph | 74% |
Forecast source: National Weather Service (api.weather.gov) for St. James (30.019, -90.851). Updated through the day.
Growing snapshot for St. James
Last spring frost
Feb 21
First fall frost
Dec 5
Growing season
291 days
Hardiness zone
9a
More local growing data for St. James: nearby ZIP 70086 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Convent
Gramercy
Grand Point
Hester
Kraemer
Lutcher
Moonshine
North Vacherie
Paulina
Pleasure Bend
Romeville
South Vacherie
Union
Welcome
Climate data from the nearest NOAA station, Donaldsonville 4 Sw, La (10 mi from St. James). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.