Harahan, LA Weather & Growing Conditions
Today
80°F
Chance Rain Showers
Patchy fog before 9am, then a chance of rain showers between 9am and 2pm. Mostly sunny. High near 80, with temperatures falling to around 77 in the afternoon. West wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Chance Rain Showers | 5 mph W | 30% |
| Tonight | 62°F | Partly Cloudy then Patchy Fog | 0 to 5 mph N | 0% |
| Thursday | 79°F | Sunny | 0 to 5 mph N | 0% |
| Thursday Night | 64°F | Partly Cloudy | 0 to 5 mph W | 4% |
| Friday | 78°F | Mostly Sunny | 0 to 5 mph N | 6% |
| Friday Night | 60°F | Mostly Clear | 0 to 10 mph N | 1% |
| Saturday | 73°F | Mostly Sunny | 5 to 10 mph N | 1% |
| Saturday Night | 54°F | Partly Cloudy | 5 to 10 mph N | 2% |
| Sunday | 68°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 10 mph N | 15% |
| Sunday Night | 52°F | Partly Cloudy | 5 mph N | 6% |
| Monday | 69°F | Sunny | 5 to 10 mph N | 7% |
| Monday Night | 53°F | Mostly Clear | 0 to 5 mph N | 5% |
| Tuesday | 71°F | Sunny | 0 to 5 mph NE | 6% |
| Tuesday Night | 54°F | Partly Cloudy | 0 mph | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harahan, LA
Last spring frost
Jan 30
First fall frost
Dec 31
Growing season
333 days
Hardiness zone
9b
Explore more for Harahan, LA: full frost dates · planting calendar · Louisiana frost dates
Climate data from the nearest NOAA station, New Orleans Intl Ap, La (4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.