Marion, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marion, a town in Union County, Louisiana.
Overnight
72°F
Clear
Clear, with a low around 72. Wind around 0 mph.
7-day forecast for Marion
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 72°F | Clear | 0 mph | 0% |
| Saturday | 99°F | Sunny | 0 to 5 mph SW | 0% |
| Saturday Night | 73°F | Clear | 0 to 5 mph S | 1% |
| Sunday | 98°F | Sunny | 5 mph SW | 1% |
| Sunday Night | 74°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Monday | 97°F | Mostly Sunny | 0 to 5 mph W | 8% |
| Monday Night | 73°F | Partly Cloudy | 0 mph | 8% |
| Tuesday | 95°F | Sunny | 0 to 5 mph N | 8% |
| Tuesday Night | 69°F | Partly Cloudy | 0 to 5 mph NE | 8% |
| Wednesday | 91°F | Sunny | 5 mph NE | 3% |
| Wednesday Night | 66°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Thursday | 89°F | Sunny | 5 mph NE | 0% |
| Thursday Night | 66°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Friday | 89°F | Mostly Sunny | 5 mph NE | 0% |
Forecast source: National Weather Service (api.weather.gov) for Marion (32.898, -92.240). Updated through the day.
Growing snapshot for Marion
Last spring frost
Mar 25
First fall frost
Nov 5
Growing season
226 days
Hardiness zone
8b
More local growing data for Marion: nearby ZIP 71260 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Monroe 26 N, La (7.1 mi from Marion). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.