Lake Poinsett, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Poinsett, a community in Hamlin County, South Dakota.
This Afternoon
64°F
Patchy Fog
Patchy fog after 3pm. Cloudy, with a high near 64. North northeast wind around 12 mph.
7-day forecast for Lake Poinsett
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 64°F | Patchy Fog | 12 mph NNE | 5% |
| Tonight | 57°F | Mostly Cloudy | 8 to 12 mph NE | 14% |
| Sunday | 62°F | Mostly Cloudy | 12 to 15 mph NE | 14% |
| Sunday Night | 48°F | Chance Rain Showers | 9 to 13 mph ENE | 47% |
| Monday | 60°F | Chance Rain Showers | 9 mph ENE | 43% |
| Monday Night | 43°F | Mostly Cloudy | 3 to 8 mph E | 4% |
| Tuesday | 63°F | Mostly Sunny | 3 to 12 mph ESE | 2% |
| Tuesday Night | 45°F | Partly Cloudy | 9 mph SE | 1% |
| Wednesday | 65°F | Mostly Sunny | 8 to 15 mph SSE | 6% |
| Wednesday Night | 51°F | Chance Showers And Thunderstorms | 14 mph SSE | 51% |
| Thursday | 69°F | Chance Showers And Thunderstorms | 14 mph SSE | 51% |
| Thursday Night | 54°F | Mostly Cloudy | 6 to 9 mph SE | 13% |
| Friday | 72°F | Partly Sunny | 6 to 12 mph SE | 13% |
| Friday Night | 57°F | Mostly Cloudy then Slight Chance Rain Showers | 9 to 13 mph SSE | 22% |
Forecast source: National Weather Service (api.weather.gov) for Lake Poinsett (44.572, -97.108). Updated through the day.
Growing snapshot for Lake Poinsett
Last spring frost
May 6
First fall frost
Oct 1
Growing season
145 days
Hardiness zone
4b
More local growing data for Lake Poinsett: nearby ZIP 57248 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Castlewood #2, Sd (12.6 mi from Lake Poinsett). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.