Clear Lake, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clear Lake, a city in Deuel County, South Dakota.
This Afternoon
62°F
Widespread Drizzle
Widespread drizzle and areas of fog. Cloudy, with a high near 62. East wind around 12 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Clear Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 62°F | Widespread Drizzle | 12 mph E | 59% |
| Tonight | 54°F | Areas Of Drizzle | 9 mph ENE | 45% |
| Saturday | 63°F | Areas Of Fog | 10 to 14 mph NE | 20% |
| Saturday Night | 51°F | Mostly Cloudy | 9 to 13 mph NE | 6% |
| Sunday | 64°F | Mostly Cloudy | 12 to 15 mph NE | 10% |
| Sunday Night | 49°F | Chance Rain Showers | 8 to 12 mph ENE | 41% |
| Monday | 60°F | Chance Rain Showers | 8 to 12 mph ENE | 41% |
| Monday Night | 45°F | Mostly Cloudy | 5 to 8 mph E | 6% |
| Tuesday | 63°F | Partly Sunny | 5 to 12 mph ESE | 2% |
| Tuesday Night | 46°F | Partly Cloudy | 9 mph SE | 2% |
| Wednesday | 66°F | Mostly Sunny | 8 to 13 mph S | 10% |
| Wednesday Night | 51°F | Chance Rain Showers | 8 mph SSE | 29% |
| Thursday | 69°F | Chance Rain Showers | 7 to 10 mph S | 29% |
| Thursday Night | 53°F | Partly Cloudy | 6 mph SSE | 9% |
Forecast source: National Weather Service (api.weather.gov) for Clear Lake (44.756, -96.690). Updated through the day.
Growing snapshot for Clear Lake
Last spring frost
May 7
First fall frost
Oct 1
Growing season
146 days
Hardiness zone
4b
More local growing data for Clear Lake: nearby ZIP 57226 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Clear Lake, Sd (3.1 mi from Clear Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.