Harman US

Oacoma, SD Weather & Growing Conditions

Tonight
37°F
Cloudy
Cloudy, with a low around 37. Northwest wind 13 to 17 mph, with gusts as high as 28 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 37°F Cloudy 13 to 17 mph NW 10%
Wednesday 48°F Chance Light Rain 16 to 20 mph NW 29%
Wednesday Night 35°F Mostly Cloudy 10 to 14 mph NW 10%
Thursday 50°F Mostly Sunny 8 to 13 mph NNW 0%
Thursday Night 29°F Partly Cloudy 2 to 6 mph E 0%
Friday 50°F Mostly Sunny 2 to 7 mph SSE 0%
Friday Night 31°F Partly Cloudy 3 mph S 0%
Saturday 60°F Mostly Sunny 3 to 12 mph W 5%
Saturday Night 34°F Mostly Clear 3 to 7 mph W 1%
Sunday 63°F Sunny 3 to 9 mph SSW 0%
Sunday Night 39°F Mostly Clear 8 mph SSW 0%
Monday 62°F Sunny 8 to 16 mph NW 0%
Monday Night 36°F Partly Cloudy 6 mph W 0%
Tuesday 60°F Mostly Sunny 3 to 8 mph SSE 0%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Oacoma, SD

Last spring frost
May 1
First fall frost
Oct 7
Growing season
158 days
Hardiness zone
5a

Explore more for Oacoma, SD: full frost dates · planting calendar · South Dakota frost dates

Climate data from the nearest NOAA station, Chamberlain Muni Ap, Sd (5.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.