Willow Lake, SD Weather & Growing Conditions
Tonight
57°F
Patchy Drizzle then Areas Of Fog
Patchy drizzle and patchy fog before midnight, then areas of fog and patchy drizzle. Cloudy, with a low around 57. Northeast wind 8 to 12 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Patchy Drizzle then Areas Of Fog | 8 to 12 mph NE | 18% |
| Saturday | 65°F | Areas Of Fog | 13 mph NE | 10% |
| Saturday Night | 53°F | Mostly Cloudy | 9 to 13 mph NE | 1% |
| Sunday | 63°F | Mostly Cloudy then Chance Rain Showers | 13 to 16 mph ENE | 29% |
| Sunday Night | 51°F | Chance Rain Showers | 13 mph E | 49% |
| Monday | 61°F | Chance Rain Showers | 13 mph E | 49% |
| Monday Night | 47°F | Mostly Cloudy | 9 mph E | 5% |
| Tuesday | 65°F | Partly Sunny | 9 to 13 mph SE | 2% |
| Tuesday Night | 49°F | Partly Cloudy | 9 to 13 mph SE | 6% |
| Wednesday | 67°F | Partly Sunny | 14 to 17 mph SSE | 13% |
| Wednesday Night | 53°F | Chance Rain Showers | 12 mph SSE | 29% |
| Thursday | 68°F | Chance Rain Showers | 9 to 13 mph SSE | 29% |
| Thursday Night | 54°F | Mostly Cloudy | 9 mph SE | 11% |
| Friday | 70°F | Partly Sunny | 10 to 15 mph SE | 11% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Willow Lake, SD
Last spring frost
May 5
First fall frost
Oct 5
Growing season
153 days
Hardiness zone
4b
Explore more for Willow Lake, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Clark, Sd (16.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.