Harman US

Hartford, SD Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Hartford, a city in Minnehaha County, South Dakota.

This Afternoon
65°F
Cloudy
Cloudy, with a high near 65. North northeast wind around 10 mph.

7-day forecast for Hartford

WhenTempForecastWindPrecip
This Afternoon 65°F Cloudy 10 mph NNE 6%
Tonight 56°F Cloudy then Patchy Fog 10 to 15 mph NNE 7%
Sunday 66°F Mostly Cloudy 15 mph NE 13%
Sunday Night 52°F Rain Showers 10 to 15 mph ENE 94%
Monday 59°F Rain Showers 10 mph ENE 94%
Monday Night 45°F Mostly Cloudy 5 to 10 mph ENE 8%
Tuesday 64°F Partly Sunny 5 to 10 mph E 3%
Tuesday Night 46°F Partly Cloudy 5 to 10 mph SE 2%
Wednesday 66°F Mostly Sunny 10 to 15 mph SE 9%
Wednesday Night 52°F Chance Showers And Thunderstorms 10 to 15 mph SSE 54%
Thursday 69°F Chance Showers And Thunderstorms 10 to 15 mph SSE 54%
Thursday Night 56°F Mostly Cloudy 5 to 10 mph SE 11%
Friday 73°F Mostly Cloudy 5 to 15 mph SE 11%
Friday Night 58°F Mostly Cloudy then Chance Rain Showers 10 to 15 mph SE 31%

Forecast source: National Weather Service (api.weather.gov) for Hartford (43.620, -96.937). Updated through the day.

Growing snapshot for Hartford

Last spring frost
Apr 26
First fall frost
Oct 13
Growing season
169 days
Hardiness zone
5a

More local growing data for Hartford: nearby ZIP 57033 weather · frost dates · planting calendar · South Dakota frost dates

Nearby towns & communities

All South Dakota locations ›

Climate data from the nearest NOAA station, Sioux Falls Wfo Ap, Sd (11.8 mi from Hartford). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.