Willow Lake, SD Weather & Growing Conditions
Overnight
36°F
Light Rain
Rain and patchy fog. Cloudy. Low around 36, with temperatures rising to around 41 overnight. North northwest wind around 21 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 36°F | Light Rain | 21 mph NNW | 82% |
| Wednesday | 43°F | Light Rain | 21 mph NW | 89% |
| Wednesday Night | 32°F | Patchy Fog | 17 mph NNW | 20% |
| Thursday | 42°F | Patchy Fog then Mostly Cloudy | 10 to 15 mph N | 0% |
| Thursday Night | 27°F | Mostly Cloudy | 2 to 9 mph ENE | 0% |
| Friday | 42°F | Mostly Sunny | 2 to 6 mph SSE | 0% |
| Friday Night | 28°F | Partly Cloudy | 7 mph S | 0% |
| Saturday | 51°F | Sunny | 7 to 12 mph SW | 0% |
| Saturday Night | 32°F | Mostly Clear | 8 mph W | 0% |
| Sunday | 53°F | Sunny | 6 to 10 mph SW | 0% |
| Sunday Night | 37°F | Mostly Clear | 10 mph SSW | 0% |
| Monday | 57°F | Sunny | 8 to 13 mph W | 0% |
| Monday Night | 35°F | Mostly Clear | 7 mph NW | 0% |
| Tuesday | 55°F | Mostly Sunny | 5 to 8 mph WSW | 1% |
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 Nov 4, 2026.