Alpena, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alpena, a town in Beadle County, South Dakota.
This Afternoon
49°F
Chance Rain Showers
A chance of rain showers. Cloudy, with a high near 49. North northwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Alpena
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 49°F | Chance Rain Showers | 20 mph NNW | 28% |
| Tonight | 35°F | Chance Rain Showers | 15 to 20 mph NNW | 54% |
| Wednesday | 46°F | Rain Showers | 15 to 20 mph NW | 78% |
| Wednesday Night | 33°F | Slight Chance Rain Showers then Mostly Cloudy | 15 mph NNW | 23% |
| Thursday | 46°F | Partly Sunny | 10 to 15 mph NNW | 2% |
| Thursday Night | 27°F | Mostly Cloudy | 0 to 5 mph ENE | 0% |
| Friday | 47°F | Partly Sunny | 0 to 5 mph SSE | 0% |
| Friday Night | 28°F | Partly Cloudy | 5 mph S | 0% |
| Saturday | 58°F | Mostly Sunny | 5 to 10 mph WSW | 3% |
| Saturday Night | 33°F | Mostly Clear | 5 mph W | 1% |
| Sunday | 59°F | Sunny | 5 to 10 mph SSW | 1% |
| Sunday Night | 37°F | Mostly Clear | 5 to 10 mph SSW | 0% |
| Monday | 61°F | Sunny | 10 to 15 mph NW | 0% |
| Monday Night | 35°F | Mostly Clear | 5 mph WNW | 0% |
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 Nov 3, 2026.