Chalmette, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chalmette, a community in St. Bernard County, Louisiana.
This Afternoon
80°F
Partly Sunny
Partly sunny. High near 80, with temperatures falling to around 75 in the afternoon. Southeast wind 5 to 10 mph.
7-day forecast for Chalmette
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Partly Sunny | 5 to 10 mph SE | 7% |
| Tonight | 69°F | Mostly Cloudy then Patchy Fog | 0 to 5 mph S | 6% |
| Wednesday | 80°F | Chance Rain Showers | 0 to 10 mph SW | 28% |
| Wednesday Night | 65°F | Partly Cloudy | 0 mph | 3% |
| Thursday | 79°F | Sunny | 0 to 5 mph W | 13% |
| Thursday Night | 64°F | Chance Rain Showers | 0 to 5 mph SW | 31% |
| Friday | 77°F | Chance Rain Showers | 5 mph NW | 39% |
| Friday Night | 60°F | Partly Cloudy | 0 to 10 mph N | 10% |
| Saturday | 72°F | Mostly Sunny | 5 to 10 mph N | 8% |
| Saturday Night | 55°F | Partly Cloudy then Slight Chance Rain Showers | 5 to 10 mph N | 15% |
| Sunday | 68°F | Slight Chance Rain Showers then Mostly Sunny | 10 mph N | 15% |
| Sunday Night | 53°F | Mostly Clear | 10 mph N | 4% |
| Monday | 68°F | Sunny | 5 to 10 mph N | 4% |
| Monday Night | 53°F | Mostly Clear | 5 mph NE | 2% |
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 Nov 3, 2026.