Chalmette, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chalmette, a community in St. Bernard County, Louisiana.
Today
93°F
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 1pm and 4pm. Sunny, with a high near 93. Northwest wind 0 to 5 mph. Chance of precipitation is 20%.
7-day forecast for Chalmette
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 93°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph NW | 17% |
| Tonight | 79°F | Mostly Clear | 5 mph SW | 8% |
| Wednesday | 94°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 29% |
| Wednesday Night | 79°F | Mostly Clear | 0 to 10 mph SW | 12% |
| Thursday | 93°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph SE | 23% |
| Thursday Night | 79°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 10 mph SE | 23% |
| Friday | 91°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph E | 24% |
| Friday Night | 79°F | Slight Chance Showers And Thunderstorms | 0 to 10 mph E | 24% |
| Saturday | 92°F | Chance Showers And Thunderstorms | 0 to 10 mph E | 29% |
| Saturday Night | 79°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 10 mph SE | 29% |
| Sunday | 91°F | Chance Showers And Thunderstorms | 0 to 10 mph SE | 51% |
| Sunday Night | 79°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 to 10 mph S | 51% |
| Monday | 91°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 58% |
| Monday Night | 79°F | Showers And Thunderstorms Likely then Partly Cloudy | 0 to 5 mph S | 58% |
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 Aug 4, 2026.