Willow Lake, SD Weather & Growing Conditions
Today
70°F
Partly Sunny
Partly sunny, with a high near 70. Northwest wind 6 to 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Partly Sunny | 6 to 12 mph NW | 2% |
| Tonight | 53°F | Mostly Clear | 3 to 7 mph WSW | 0% |
| Wednesday | 77°F | Sunny | 7 to 13 mph SSW | 0% |
| Wednesday Night | 59°F | Partly Cloudy | 9 to 14 mph SSW | 0% |
| Thursday | 82°F | Sunny | 14 to 17 mph SSW | 3% |
| Thursday Night | 63°F | Mostly Clear | 12 to 15 mph S | 5% |
| Friday | 85°F | Sunny | 10 to 14 mph SSW | 6% |
| Friday Night | 63°F | Mostly Clear | 10 mph SE | 6% |
| Saturday | 85°F | Sunny | 12 to 16 mph SE | 6% |
| Saturday Night | 64°F | Slight Chance Showers And Thunderstorms | 15 mph ESE | 18% |
| Sunday | 83°F | Mostly Sunny | 15 mph E | 10% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms | 15 mph E | 23% |
| Monday | 81°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 16 mph ENE | 23% |
| Monday Night | 63°F | Slight Chance Showers And Thunderstorms | 16 mph ENE | 15% |
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 Aug 4, 2026.