Alpena, SD Weather & Growing Conditions
Today
73°F
Partly Sunny
Partly sunny, with a high near 73. Northwest wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Partly Sunny | 5 to 10 mph NW | 4% |
| Tonight | 53°F | Partly Cloudy | 5 mph SW | 2% |
| Wednesday | 81°F | Sunny | 5 to 10 mph S | 0% |
| Wednesday Night | 60°F | Partly Cloudy | 10 mph S | 2% |
| Thursday | 87°F | Mostly Sunny | 10 to 15 mph S | 6% |
| Thursday Night | 64°F | Mostly Clear | 10 to 15 mph S | 6% |
| Friday | 90°F | Sunny | 10 mph S | 6% |
| Friday Night | 64°F | Mostly Clear | 5 to 10 mph SE | 4% |
| Saturday | 92°F | Sunny | 5 to 20 mph SSE | 5% |
| Saturday Night | 65°F | Mostly Clear | 10 to 15 mph SE | 13% |
| Sunday | 89°F | Mostly Sunny | 10 to 15 mph E | 8% |
| Sunday Night | 66°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph E | 27% |
| Monday | 88°F | Chance Showers And Thunderstorms then Partly Sunny | 10 to 15 mph ENE | 27% |
| Monday Night | 64°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ENE | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Alpena, SD
Last spring frost
May 2
First fall frost
Oct 8
Growing season
157 days
Hardiness zone
4b
Explore more for Alpena, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Wessington Springs, Sd (12.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.