Winthrop, AR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winthrop, a city in Little River County, Arkansas.
Overnight
45°F
Mostly Clear
Mostly clear, with a low around 45. Northwest wind around 5 mph.
7-day forecast for Winthrop
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Mostly Clear | 5 mph NW | 0% |
| Wednesday | 72°F | Sunny | 5 mph NW | 0% |
| Wednesday Night | 39°F | Partly Cloudy | 0 to 5 mph NW | 0% |
| Thursday | 74°F | Sunny | 0 to 5 mph S | 0% |
| Thursday Night | 46°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Friday | 71°F | Sunny | 5 to 10 mph N | 0% |
| Friday Night | 39°F | Partly Cloudy | 0 to 10 mph NE | 0% |
| Saturday | 66°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Saturday Night | 36°F | Partly Cloudy then Slight Chance Rain Showers | 0 mph | 15% |
| Sunday | 68°F | Mostly Sunny | 0 to 5 mph N | 1% |
| Sunday Night | 35°F | Mostly Clear | 0 mph | 0% |
| Monday | 69°F | Sunny | 0 to 5 mph SW | 2% |
| Monday Night | 36°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 72°F | Sunny | 0 to 5 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Winthrop (33.831, -94.354). Updated through the day.
Growing snapshot for Winthrop
Last spring frost
Mar 29
First fall frost
Nov 5
Growing season
222 days
Hardiness zone
8a
More local growing data for Winthrop: nearby ZIP 71866 weather · frost dates · planting calendar · Arkansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Dequeen, Ar (12.4 mi from Winthrop). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.