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Chester, SD Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Chester, a community in Lake County, South Dakota.

This Afternoon
50°F
Rain Showers
Rain showers. Cloudy. High near 50, with temperatures falling to around 45 in the afternoon. North northwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Chester

WhenTempForecastWindPrecip
This Afternoon 50°F Rain Showers 20 mph NNW 92%
Tonight 38°F Rain Showers 15 to 20 mph NNW 93%
Wednesday 44°F Rain Showers 15 to 20 mph NW 89%
Wednesday Night 36°F Rain Showers Likely then Cloudy 15 mph NNW 62%
Thursday 45°F Partly Sunny 10 to 15 mph N 8%
Thursday Night 30°F Mostly Cloudy 0 to 10 mph NNE 0%
Friday 45°F Partly Sunny 0 to 5 mph SE 0%
Friday Night 30°F Partly Cloudy 0 to 5 mph S 0%
Saturday 54°F Mostly Sunny 5 to 10 mph WSW 3%
Saturday Night 34°F Mostly Clear 5 mph WNW 4%
Sunday 56°F Sunny 5 to 10 mph WSW 2%
Sunday Night 37°F Mostly Clear 5 to 10 mph SSW 0%
Monday 59°F Sunny 10 to 15 mph W 0%
Monday Night 37°F Mostly Clear 5 to 10 mph NW 0%

Forecast source: National Weather Service (api.weather.gov) for Chester (43.900, -96.928). Updated through the day.

Growing snapshot for Chester

Last spring frost
May 2
First fall frost
Oct 5
Growing season
156 days
Hardiness zone
4b

More local growing data for Chester: nearby ZIP 57016 weather · frost dates · planting calendar · South Dakota frost dates

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Climate data from the nearest NOAA station, Wentworth 2.5 Wnw, Sd (9.3 mi from Chester). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.