Alpena, SD Weather & Growing Conditions
Tonight
35°F
Chance Rain Showers
A chance of rain showers. Cloudy. Low around 35, with temperatures rising to around 38 overnight. North northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 35°F | Chance Rain Showers | 15 to 20 mph NNW | 53% |
| Wednesday | 46°F | Rain Showers | 15 to 20 mph NW | 77% |
| Wednesday Night | 33°F | Slight Chance Rain Showers then Mostly Cloudy | 15 mph NNW | 22% |
| Thursday | 46°F | Partly Sunny | 10 to 15 mph NNW | 2% |
| Thursday Night | 27°F | Partly 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 | 59°F | Mostly Sunny | 5 to 10 mph WSW | 3% |
| Saturday Night | 33°F | Mostly Clear | 5 to 10 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% |
| Tuesday | 57°F | Mostly Sunny | 5 mph SSW | 0% |
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 Nov 4, 2026.