La Plant, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for La Plant, a community in Dewey County, South Dakota.
This Afternoon
47°F
Mostly Cloudy
Mostly cloudy. High near 47, with temperatures falling to around 41 in the afternoon. North northwest wind 14 to 21 mph, with gusts as high as 36 mph.
7-day forecast for La Plant
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 47°F | Mostly Cloudy | 14 to 21 mph NNW | 0% |
| Tonight | 31°F | Mostly Cloudy | 12 to 15 mph NNW | 0% |
| Wednesday | 49°F | Mostly Cloudy | 15 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 | 7 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 | 12 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) for La Plant (45.128, -100.641). Updated through the day.
Growing snapshot for La Plant
Last spring frost
May 10
First fall frost
Sep 30
Growing season
141 days
Hardiness zone
4b
More local growing data for La Plant: nearby ZIP 57652 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Timber Lake, Sd (27.8 mi from La Plant). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.