Jefferson, LA Weather & Growing Conditions
Today
94°F
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 2pm and 3pm. Sunny. High near 94, with temperatures falling to around 92 in the afternoon. North wind around 5 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 94°F | Sunny then Slight Chance Showers And Thunderstorms | 5 mph N | 15% |
| Tonight | 78°F | Mostly Clear | 5 mph SW | 7% |
| Wednesday | 95°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 33% |
| Wednesday Night | 78°F | Mostly Clear | 0 to 5 mph SW | 11% |
| Thursday | 94°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph NE | 30% |
| Thursday Night | 78°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph SE | 30% |
| Friday | 92°F | Sunny then Chance Showers And Thunderstorms | 0 to 10 mph E | 25% |
| Friday Night | 79°F | Chance Showers And Thunderstorms | 0 to 10 mph E | 25% |
| Saturday | 92°F | Chance Showers And Thunderstorms | 0 to 10 mph E | 34% |
| Saturday Night | 79°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 34% |
| Sunday | 92°F | Showers And Thunderstorms Likely | 0 to 10 mph E | 57% |
| Sunday Night | 79°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 57% |
| Monday | 92°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 62% |
| Monday Night | 78°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 62% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Jefferson, LA
Last spring frost
Jan 24
First fall frost
Jan 2
Growing season
341 days
Hardiness zone
9b
Explore more for Jefferson, LA: full frost dates · planting calendar · Louisiana frost dates
Climate data from the nearest NOAA station, New Orleans Audubon, La (3.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.