Simpson, LA Weather & Growing Conditions
This Afternoon
80°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a high near 80. Southwest wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Showers And Thunderstorms | 5 to 10 mph SW | 98% |
| Tonight | 53°F | Showers And Thunderstorms Likely then Mostly Cloudy | 0 to 5 mph NW | 69% |
| Wednesday | 76°F | Partly Sunny | 0 to 5 mph NW | 0% |
| Wednesday Night | 46°F | Mostly Clear | 0 mph | 1% |
| Thursday | 79°F | Mostly Sunny | 0 mph | 7% |
| Thursday Night | 52°F | Partly Cloudy | 0 mph | 12% |
| Friday | 78°F | Mostly Sunny | 0 to 5 mph NW | 1% |
| Friday Night | 47°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 72°F | Partly Sunny | 5 mph N | 3% |
| Saturday Night | 42°F | Partly Cloudy | 0 to 5 mph N | 12% |
| Sunday | 69°F | Mostly Sunny | 0 to 5 mph N | 4% |
| Sunday Night | 40°F | Mostly Clear | 0 mph | 3% |
| Monday | 73°F | Sunny | 0 to 5 mph NE | 1% |
| Monday Night | 40°F | 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 1
First fall frost
Nov 23
Growing season
268 days
Hardiness zone
9a
Explore more for Simpson, LA: full frost dates · planting calendar · Louisiana frost dates
Climate data from the nearest NOAA station, Ft Polk Fullerton Lndg Strip, La (9.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.