Chalmette, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chalmette, a community in St. Bernard County, Louisiana.
Tonight
77°F
Clear
Clear, with a low around 77. East wind 0 to 5 mph.
7-day forecast for Chalmette
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 77°F | Clear | 0 to 5 mph E | 0% |
| Saturday | 93°F | Sunny | 0 to 5 mph NE | 3% |
| Saturday Night | 78°F | Mostly Clear | 0 to 5 mph S | 2% |
| Sunday | 94°F | Sunny | 0 to 5 mph N | 5% |
| Sunday Night | 79°F | Mostly Clear | 0 to 5 mph SW | 5% |
| Monday | 93°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph N | 22% |
| Monday Night | 79°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 22% |
| Tuesday | 93°F | Sunny | 0 to 5 mph NE | 9% |
| Tuesday Night | 79°F | Mostly Clear | 0 to 5 mph SE | 9% |
| Wednesday | 92°F | Sunny | 5 to 10 mph NE | 12% |
| Wednesday Night | 78°F | Mostly Clear | 0 to 10 mph NE | 12% |
| Thursday | 90°F | Sunny | 10 to 15 mph NE | 8% |
| Thursday Night | 77°F | Mostly Clear | 5 to 10 mph NE | 8% |
| Friday | 88°F | Sunny | 10 to 15 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Chalmette (29.944, -89.966). Updated through the day.
Growing snapshot for Chalmette
Last spring frost
Feb 10
First fall frost
Dec 17
Growing season
309 days
Hardiness zone
9b
More local growing data for Chalmette: nearby ZIP 70043 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Chalmette, La (1.4 mi from Chalmette). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.