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.
Tonight
36°F
Light Rain
Rain likely before 10pm, then rain and patchy fog. Cloudy. Low around 36, with temperatures rising to around 40 overnight. North northwest wind 16 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Willow Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 36°F | Light Rain | 16 to 23 mph NNW | 84% |
| Wednesday | 43°F | Light Rain | 21 mph NNW | 87% |
| Wednesday Night | 32°F | Patchy Fog | 14 to 17 mph NNW | 23% |
| Thursday | 43°F | Patchy Fog then Partly Sunny | 10 to 16 mph N | 2% |
| Thursday Night | 28°F | Mostly Cloudy | 2 to 9 mph NE | 0% |
| Friday | 44°F | Partly Sunny | 2 to 6 mph SSE | 0% |
| Friday Night | 29°F | Partly Cloudy | 6 mph S | 0% |
| Saturday | 54°F | Mostly Sunny | 6 to 12 mph WSW | 4% |
| Saturday Night | 32°F | Mostly Clear | 8 mph WNW | 4% |
| Sunday | 55°F | Sunny | 6 to 10 mph SW | 2% |
| Sunday Night | 37°F | Mostly Clear | 10 mph SSW | 0% |
| Monday | 57°F | Sunny | 10 to 15 mph W | 0% |
| Monday Night | 35°F | Mostly Clear | 8 mph WNW | 0% |
| Tuesday | 55°F | Mostly Sunny | 6 to 9 mph SW | 0% |
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 Nov 4, 2026.