Alpena, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alpena, a town in Beadle County, South Dakota.
Today
74°F
Partly Sunny
Partly sunny, with a high near 74. Northwest wind 5 to 10 mph.
7-day forecast for Alpena
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Partly Sunny | 5 to 10 mph NW | 5% |
| Tonight | 53°F | Partly Cloudy | 5 mph SW | 2% |
| Wednesday | 80°F | Sunny | 5 to 10 mph S | 0% |
| Wednesday Night | 59°F | Partly Cloudy | 10 mph S | 2% |
| Thursday | 87°F | Mostly Sunny | 10 to 15 mph S | 6% |
| Thursday Night | 63°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 SE | 5% |
| Saturday Night | 65°F | Mostly Clear | 10 to 15 mph SE | 13% |
| Sunday | 88°F | Mostly Sunny | 10 to 15 mph E | 7% |
| Sunday Night | 65°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph E | 27% |
| Monday | 87°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) for Alpena (44.183, -98.368). Updated through the day.
Growing snapshot for Alpena
Last spring frost
May 2
First fall frost
Oct 8
Growing season
157 days
Hardiness zone
4b
More local growing data for Alpena: nearby ZIP 57312 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Broadland
Cavour
Hitchcock
Huron
Huron Colony
Morningside
Riverside Colony
Shamrock Colony
Virgil
Wolsey
Yale
Climate data from the nearest NOAA station, Wessington Springs, Sd (12.3 mi from Alpena). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.