Spencer, SD Weather & Growing Conditions
This Afternoon
66°F
Mostly Cloudy
Mostly cloudy, with a high near 66. North northeast wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Mostly Cloudy | 10 mph NNE | 6% |
| Tonight | 55°F | Mostly Cloudy | 5 to 10 mph NE | 6% |
| Sunday | 66°F | Cloudy then Slight Chance Rain Showers | 10 to 15 mph NE | 24% |
| Sunday Night | 51°F | Rain Showers | 10 mph ENE | 93% |
| Monday | 60°F | Rain Showers | 10 mph ENE | 93% |
| Monday Night | 45°F | Mostly Cloudy | 5 to 10 mph E | 7% |
| Tuesday | 65°F | Mostly Sunny | 5 to 10 mph ESE | 2% |
| Tuesday Night | 47°F | Partly Cloudy | 10 mph SE | 3% |
| Wednesday | 67°F | Mostly Sunny | 15 mph SE | 11% |
| Wednesday Night | 52°F | Showers And Thunderstorms Likely | 15 mph SE | 55% |
| Thursday | 71°F | Showers And Thunderstorms Likely | 10 to 15 mph SSE | 55% |
| Thursday Night | 55°F | Mostly Cloudy | 10 mph SE | 11% |
| Friday | 73°F | Partly Sunny | 10 to 15 mph SE | 11% |
| Friday Night | 58°F | Mostly Cloudy then Chance Rain Showers | 10 to 15 mph SE | 27% |
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 Sep 19, 2026.