Jefferson, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jefferson, a community in Jefferson County, Louisiana.
Today
93°F
Sunny
Sunny, with a high near 93. Northeast wind around 5 mph.
7-day forecast for Jefferson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 93°F | Sunny | 5 mph NE | 2% |
| Tonight | 76°F | Clear | 0 to 5 mph S | 1% |
| Sunday | 93°F | Sunny | 0 to 5 mph N | 5% |
| Sunday Night | 77°F | Mostly Clear | 0 to 5 mph SW | 2% |
| Monday | 93°F | Sunny then Slight Chance Showers And Thunderstorms | 5 mph N | 19% |
| Monday Night | 77°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph S | 19% |
| Tuesday | 93°F | Sunny | 0 to 5 mph N | 11% |
| Tuesday Night | 77°F | Mostly Clear | 0 to 5 mph E | 11% |
| Wednesday | 92°F | Sunny | 0 to 10 mph NE | 8% |
| Wednesday Night | 77°F | Mostly Clear | 0 to 5 mph NE | 9% |
| Thursday | 90°F | Sunny | 10 mph NE | 6% |
| Thursday Night | 76°F | Mostly Clear | 5 to 10 mph NE | 6% |
| Friday | 89°F | Sunny | 10 mph NE | 3% |
| Friday Night | 74°F | Partly Cloudy | 5 to 10 mph E | 3% |
Forecast source: National Weather Service (api.weather.gov) for Jefferson (29.960, -90.156). Updated through the day.
Growing snapshot for Jefferson
Last spring frost
Jan 24
First fall frost
Jan 2
Growing season
341 days
Hardiness zone
9b
More local growing data for Jefferson: nearby ZIP 70121 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Avondale
Barataria
Belle Chasse
Bridge City
Elmwood
Estelle
Grand Isle
Gretna
Harahan
Harvey
Jean Lafitte
Kenner
Lafitte
Metairie
New Orleans Station
River Ridge
Terrytown
Timberlane
Waggaman
Woodmere
Climate data from the nearest NOAA station, New Orleans Audubon, La (3.6 mi from Jefferson). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.