Willow Lake, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Willow Lake, a city in Clark County, South Dakota.
Overnight
57°F
Patchy Fog
Patchy fog and a slight chance of drizzle. Cloudy, with a low around 57. Northeast wind around 5 mph.
7-day forecast for Willow Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Patchy Fog | 5 mph NE | 4% |
| Saturday | 64°F | Patchy Fog then Cloudy | 5 to 13 mph NE | 7% |
| Saturday Night | 51°F | Mostly Cloudy | 8 to 13 mph NE | 4% |
| Sunday | 64°F | Mostly Cloudy | 13 to 16 mph ENE | 7% |
| Sunday Night | 49°F | Cloudy then Slight Chance Rain Showers | 13 mph ENE | 23% |
| Monday | 62°F | Slight Chance Rain Showers | 12 mph E | 23% |
| Monday Night | 45°F | Mostly Cloudy | 8 mph ESE | 6% |
| Tuesday | 64°F | Mostly Sunny | 8 to 14 mph SE | 2% |
| Tuesday Night | 46°F | Partly Cloudy | 13 mph SE | 2% |
| Wednesday | 66°F | Mostly Sunny | 14 to 17 mph SSE | 11% |
| Wednesday Night | 51°F | Chance Rain Showers | 14 mph SSE | 34% |
| Thursday | 68°F | Chance Rain Showers | 12 to 15 mph SSE | 30% |
| Thursday Night | 53°F | Mostly Cloudy | 10 mph SSE | 14% |
| Friday | 71°F | Partly Sunny | 12 to 16 mph SE | 14% |
Forecast source: National Weather Service (api.weather.gov) for Willow Lake (44.628, -97.638). Updated through the day.
Growing snapshot for Willow Lake
Last spring frost
May 5
First fall frost
Oct 5
Growing season
153 days
Hardiness zone
4b
More local growing data for Willow Lake: nearby ZIP 57278 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Bradley
Clark
Collins Colony
Crocker
Fordham Colony
Garden City
Hillcrest Colony
Mayfield Colony
Naples
Raymond
Silver Lake Colony
Vienna
Climate data from the nearest NOAA station, Clark, Sd (16.3 mi from Willow Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.