Spencer, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Spencer, a city in Mccook County, South Dakota.
Today
73°F
Isolated Rain Showers
Isolated rain showers before 5pm. Partly sunny, with a high near 73. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.
7-day forecast for Spencer
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Isolated Rain Showers | 5 to 10 mph NW | 23% |
| Tonight | 53°F | Partly Cloudy | 0 to 5 mph SW | 3% |
| Wednesday | 78°F | Mostly Sunny | 5 mph S | 1% |
| Wednesday Night | 57°F | Mostly Clear | 5 to 10 mph S | 0% |
| Thursday | 85°F | Sunny | 10 to 15 mph S | 3% |
| Thursday Night | 64°F | Mostly Clear | 10 to 15 mph S | 6% |
| Friday | 89°F | Sunny | 10 mph SSW | 8% |
| Friday Night | 65°F | Mostly Clear | 5 to 10 mph S | 11% |
| Saturday | 91°F | Sunny | 10 to 15 mph SSE | 6% |
| Saturday Night | 67°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ESE | 15% |
| Sunday | 89°F | Mostly Sunny | 10 to 15 mph ESE | 8% |
| Sunday Night | 68°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 15 mph E | 18% |
| Monday | 88°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 15 mph ENE | 18% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ENE | 16% |
Forecast source: National Weather Service (api.weather.gov) for Spencer (43.727, -97.591). Updated through the day.
Growing snapshot for Spencer
Last spring frost
May 8
First fall frost
Sep 29
Growing season
143 days
Hardiness zone
5a
More local growing data for Spencer: nearby ZIP 57374 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Alexandria, Sd (12.2 mi from Spencer). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.