Clear Lake, SD Weather & Growing Conditions
This Afternoon
47°F
Light Rain
Rain and patchy fog. Cloudy. High near 47, with temperatures falling to around 42 in the afternoon. North wind around 20 mph, with gusts as high as 36 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 |
|---|---|---|---|---|
| This Afternoon | 47°F | Light Rain | 20 mph N | 79% |
| Tonight | 38°F | Light Rain | 21 mph NNW | 90% |
| Wednesday | 43°F | Light Rain | 22 mph NNW | 90% |
| Wednesday Night | 33°F | Light Rain Likely | 20 mph NNW | 67% |
| Thursday | 41°F | Patchy Fog then Partly Sunny | 13 to 18 mph N | 7% |
| Thursday Night | 29°F | Mostly Cloudy | 2 to 12 mph NNE | 0% |
| Friday | 44°F | Partly Sunny | 5 mph SSE | 0% |
| Friday Night | 30°F | Partly Cloudy | 5 to 8 mph SW | 0% |
| Saturday | 54°F | Mostly Sunny | 8 to 14 mph WSW | 3% |
| Saturday Night | 35°F | Partly Cloudy | 12 mph W | 4% |
| Sunday | 56°F | Sunny | 10 mph WSW | 3% |
| Sunday Night | 38°F | Partly Cloudy | 9 to 15 mph SW | 0% |
| Monday | 58°F | Mostly Sunny | 12 to 16 mph W | 0% |
| Monday Night | 37°F | Mostly Clear | 7 to 10 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Clear Lake, SD
Last spring frost
May 7
First fall frost
Oct 1
Growing season
146 days
Hardiness zone
4b
Explore more for Clear Lake, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Clear Lake, Sd (3.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.