Simpson, LA Weather & Growing Conditions
Today
74°F
Mostly Sunny
Mostly sunny, with a high near 74. Northwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Tonight | 47°F | Mostly Clear | 0 mph | 0% |
| Thursday | 78°F | Sunny | 0 mph | 0% |
| Thursday Night | 51°F | Partly Cloudy | 0 mph | 0% |
| Friday | 78°F | Sunny | 0 to 5 mph N | 1% |
| Friday Night | 49°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 71°F | Partly Sunny | 5 mph NE | 0% |
| Saturday Night | 43°F | Mostly Cloudy | 0 to 5 mph N | 3% |
| Sunday | 67°F | Mostly Sunny | 0 to 5 mph N | 4% |
| Sunday Night | 41°F | Mostly Clear | 0 mph | 2% |
| Monday | 70°F | Sunny | 0 mph | 3% |
| Monday Night | 41°F | Mostly Clear | 0 mph | 2% |
| Tuesday | 74°F | Sunny | 0 mph | 2% |
| Tuesday Night | 43°F | Mostly Clear | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Simpson, LA
Last spring frost
Mar 2
First fall frost
Nov 27
Growing season
271 days
Hardiness zone
9a
Explore more for Simpson, LA: full frost dates · planting calendar · Louisiana frost dates
Climate data from the nearest NOAA station, Boyce 3 Wnw, La (16.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.