St. Lawrence, SD Weather & Growing Conditions
Overnight
35°F
Chance Light Rain
A chance of rain. Cloudy. Low around 35, with temperatures rising to around 38 overnight. Northwest wind around 21 mph, with gusts as high as 33 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 35°F | Chance Light Rain | 21 mph NW | 36% |
| Wednesday | 47°F | Chance Light Rain | 16 to 22 mph NW | 51% |
| Wednesday Night | 31°F | Mostly Cloudy then Patchy Fog | 12 to 15 mph NNW | 1% |
| Thursday | 44°F | Patchy Fog then Partly Sunny | 8 to 13 mph N | 0% |
| Thursday Night | 25°F | Partly Cloudy | 2 to 7 mph E | 0% |
| Friday | 45°F | Mostly Sunny | 2 to 7 mph SSE | 0% |
| Friday Night | 27°F | Partly Cloudy | 6 mph S | 1% |
| Saturday | 57°F | Sunny | 6 to 13 mph WSW | 0% |
| Saturday Night | 33°F | Mostly Clear | 9 mph W | 0% |
| Sunday | 58°F | Sunny | 7 to 10 mph SW | 0% |
| Sunday Night | 38°F | Mostly Clear | 9 mph SW | 0% |
| Monday | 61°F | Sunny | 8 to 13 mph WNW | 0% |
| Monday Night | 34°F | Mostly Clear | 7 mph WNW | 0% |
| Tuesday | 57°F | Mostly Sunny | 5 to 8 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Lawrence, SD
Last spring frost
May 3
First fall frost
Oct 3
Growing season
152 days
Hardiness zone
4b
Explore more for St. Lawrence, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Miller, Sd (5.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.