Harman US

La Plant, SD Weather & Growing Conditions

This Afternoon
42°F
Mostly Cloudy
Mostly cloudy. High near 42, with temperatures falling to around 34 in the afternoon. North northwest wind 16 to 21 mph, with gusts as high as 30 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 42°F Mostly Cloudy 16 to 21 mph NNW 0%
Tonight 33°F Mostly Cloudy 14 mph NNW 0%
Wednesday 49°F Mostly Cloudy 14 to 20 mph NNW 0%
Wednesday Night 31°F Mostly Cloudy 10 to 15 mph NNW 0%
Thursday 48°F Mostly Sunny 5 to 10 mph NNE 0%
Thursday Night 28°F Partly Cloudy 6 mph ESE 0%
Friday 48°F Mostly Sunny 7 mph SSW 0%
Friday Night 31°F Partly Cloudy 5 to 8 mph SW 4%
Saturday 59°F Sunny 8 to 18 mph W 4%
Saturday Night 33°F Mostly Clear 6 to 9 mph W 1%
Sunday 59°F Sunny 6 to 12 mph SSW 0%
Sunday Night 38°F Mostly Clear 9 to 13 mph WSW 0%
Monday 59°F Sunny 8 to 18 mph NW 0%
Monday Night 35°F Partly Cloudy 7 mph WNW 1%

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

Growing snapshot for La Plant, SD

Last spring frost
May 10
First fall frost
Sep 30
Growing season
141 days
Hardiness zone
4b

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

Climate data from the nearest NOAA station, Timber Lake, Sd (27.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.