Jefferson, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jefferson, a community in Jefferson County, Louisiana.
This Afternoon
81°F
Partly Sunny
Partly sunny. High near 81, with temperatures falling to around 76 in the afternoon. Southeast wind 5 to 10 mph.
7-day forecast for Jefferson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Partly Sunny | 5 to 10 mph SE | 7% |
| Tonight | 69°F | Mostly Cloudy then Patchy Fog | 0 to 5 mph S | 8% |
| Wednesday | 80°F | Chance Rain Showers | 0 to 5 mph SW | 28% |
| Wednesday Night | 65°F | Partly Cloudy | 0 mph | 1% |
| Thursday | 79°F | Sunny | 0 to 5 mph N | 13% |
| Thursday Night | 64°F | Chance Rain Showers | 0 to 5 mph SW | 31% |
| Friday | 78°F | Chance Rain Showers | 5 mph N | 38% |
| Friday Night | 60°F | Partly Cloudy | 0 to 10 mph N | 6% |
| Saturday | 74°F | Mostly Sunny | 5 to 10 mph N | 7% |
| Saturday Night | 54°F | Partly Cloudy then Slight Chance Rain Showers | 5 to 10 mph N | 15% |
| Sunday | 69°F | Mostly Sunny | 5 to 10 mph N | 11% |
| Sunday Night | 53°F | Mostly Clear | 5 to 10 mph N | 4% |
| Monday | 70°F | Sunny | 5 to 10 mph N | 3% |
| Monday Night | 52°F | Mostly Clear | 0 to 5 mph N | 2% |
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
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Jean Lafitte
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Metairie
New Orleans Station
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Terrytown
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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 Nov 3, 2026.