Donaldsonville, LA Weather & Growing Conditions
This Afternoon
79°F
Sunny
Sunny. High near 79, with temperatures falling to around 68 in the afternoon. Northwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Sunny | 5 mph NW | 2% |
| Tonight | 55°F | Mostly Clear | 0 to 5 mph N | 0% |
| Thursday | 80°F | Sunny | 0 mph | 0% |
| Thursday Night | 57°F | Mostly Clear | 0 mph | 2% |
| Friday | 79°F | Mostly Sunny | 0 to 5 mph N | 2% |
| Friday Night | 55°F | Mostly Clear | 0 to 5 mph N | 0% |
| Saturday | 76°F | Mostly Sunny | 5 mph NE | 0% |
| Saturday Night | 48°F | Mostly Cloudy | 5 mph N | 1% |
| Sunday | 67°F | Slight Chance Rain Showers then Partly Sunny | 5 mph NE | 15% |
| Sunday Night | 45°F | Mostly Cloudy | 0 to 5 mph N | 3% |
| Monday | 71°F | Mostly Sunny | 0 to 5 mph N | 4% |
| Monday Night | 46°F | Partly Cloudy | 0 mph | 5% |
| Tuesday | 74°F | Mostly Sunny | 0 to 5 mph N | 6% |
| Tuesday Night | 49°F | Partly Cloudy | 0 mph | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Donaldsonville, LA
Last spring frost
Feb 21
First fall frost
Dec 5
Growing season
291 days
Hardiness zone
9a
Explore more for Donaldsonville, LA: full frost dates · planting calendar · Louisiana frost dates
Climate data from the nearest NOAA station, Donaldsonville 4 Sw, La (2.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.