Cotton Valley, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cotton Valley, a town in Webster County, Louisiana.
Overnight
48°F
Patchy Fog
Patchy fog before 2am. Mostly clear, with a low around 48. Northwest wind 0 to 5 mph.
7-day forecast for Cotton Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Patchy Fog | 0 to 5 mph NW | 0% |
| Wednesday | 72°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Wednesday Night | 43°F | Mostly Clear | 0 mph | 0% |
| Thursday | 75°F | Sunny | 0 mph | 0% |
| Thursday Night | 47°F | Partly Cloudy | 0 mph | 0% |
| Friday | 74°F | Sunny | 0 to 5 mph N | 0% |
| Friday Night | 44°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Saturday | 67°F | Mostly Sunny | 5 mph NE | 0% |
| Saturday Night | 39°F | Mostly Cloudy then Slight Chance Rain Showers | 0 mph | 15% |
| Sunday | 67°F | Mostly Sunny | 0 to 5 mph N | 1% |
| Sunday Night | 37°F | Mostly Clear | 0 mph | 1% |
| Monday | 69°F | Sunny | 0 mph | 3% |
| Monday Night | 38°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 72°F | Sunny | 0 mph | 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 Nov 4, 2026.