Cotton Valley, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cotton Valley, a town in Webster County, Louisiana.
This Afternoon
99°F
Sunny
Sunny, with a high near 99. Southeast wind around 5 mph.
7-day forecast for Cotton Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 99°F | Sunny | 5 mph SE | 0% |
| Tonight | 69°F | Clear | 0 to 5 mph S | 0% |
| Saturday | 100°F | Sunny | 0 to 5 mph SW | 0% |
| Saturday Night | 71°F | Clear | 0 mph | 0% |
| Sunday | 99°F | Sunny | 0 to 5 mph SW | 0% |
| Sunday Night | 73°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Monday | 99°F | Mostly Sunny | 0 to 5 mph W | 7% |
| Monday Night | 72°F | Partly Cloudy | 0 mph | 7% |
| Tuesday | 97°F | Mostly Sunny | 0 to 5 mph N | 10% |
| Tuesday Night | 70°F | Partly Cloudy | 0 to 5 mph NE | 10% |
| Wednesday | 94°F | Sunny | 5 mph NE | 4% |
| Wednesday Night | 68°F | Mostly Clear | 0 to 5 mph NE | 4% |
| Thursday | 92°F | Sunny | 5 mph NE | 2% |
| Thursday Night | 67°F | Mostly Clear | 0 to 5 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Cotton Valley (32.813, -93.423). Updated through the day.
Growing snapshot for Cotton Valley
Last spring frost
Mar 14
First fall frost
Nov 14
Growing season
246 days
Hardiness zone
8b
More local growing data for Cotton Valley: nearby ZIP 71018 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Benton 5E, La (15.7 mi from Cotton Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.