Spencer, SD Weather & Growing Conditions
Overnight
37°F
Chance Rain Showers
A chance of rain showers. Cloudy. Low around 37, with temperatures rising to around 40 overnight. Northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 37°F | Chance Rain Showers | 15 to 20 mph NW | 36% |
| Wednesday | 45°F | Rain Showers Likely | 15 to 20 mph NW | 74% |
| Wednesday Night | 35°F | Chance Rain Showers then Mostly Cloudy | 15 mph NW | 32% |
| Thursday | 46°F | Partly Sunny | 10 to 15 mph NNW | 0% |
| Thursday Night | 29°F | Mostly Cloudy | 0 to 10 mph NE | 0% |
| Friday | 45°F | Mostly Sunny | 0 to 5 mph SE | 0% |
| Friday Night | 29°F | Partly Cloudy | 5 mph SSE | 0% |
| Saturday | 54°F | Mostly Sunny | 5 to 10 mph SSW | 0% |
| Saturday Night | 33°F | Mostly Clear | 5 mph W | 0% |
| Sunday | 56°F | Sunny | 5 to 10 mph SW | 0% |
| Sunday Night | 38°F | Mostly Clear | 5 to 10 mph S | 0% |
| Monday | 60°F | Sunny | 5 to 10 mph W | 0% |
| Monday Night | 36°F | Mostly Clear | 5 mph NW | 0% |
| Tuesday | 58°F | Mostly Sunny | 5 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Spencer, SD
Last spring frost
May 8
First fall frost
Sep 29
Growing season
143 days
Hardiness zone
5a
Explore more for Spencer, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Alexandria, Sd (12.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.