Harman US

Spencer, SD Weather & Growing Conditions

Tonight
60°F
Patchy Fog
Patchy fog after 11pm. Cloudy, with a low around 60. North wind 5 to 10 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 60°F Patchy Fog 5 to 10 mph N 5%
Saturday 68°F Patchy Fog then Cloudy 10 mph NNE 12%
Saturday Night 55°F Mostly Cloudy 5 to 10 mph NE 3%
Sunday 66°F Mostly Cloudy then Chance Rain Showers 10 to 15 mph NE 39%
Sunday Night 52°F Rain Showers Likely 10 mph ENE 65%
Monday 62°F Rain Showers Likely 10 mph E 65%
Monday Night 48°F Mostly Cloudy 5 to 10 mph E 11%
Tuesday 65°F Partly Sunny 5 to 10 mph ESE 2%
Tuesday Night 50°F Mostly Cloudy 10 mph SE 2%
Wednesday 69°F Partly Sunny 10 to 15 mph SSE 13%
Wednesday Night 53°F Chance Rain Showers 10 mph SSE 39%
Thursday 70°F Slight Chance Showers And Thunderstorms 10 mph SSE 39%
Thursday Night 55°F Mostly Cloudy 5 to 10 mph SE 9%
Friday 71°F Partly Sunny 10 to 15 mph SE 11%

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.