Harman US

Andover, SD Weather & Growing Conditions

Tonight
37°F
Chance Light Rain
A chance of rain before 2am, then rain likely and patchy fog. Cloudy. Low around 37, with temperatures rising to around 40 overnight. North northwest wind 14 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Tonight 37°F Chance Light Rain 14 to 17 mph NNW 73%
Wednesday 43°F Light Rain 17 mph NNW 79%
Wednesday Night 31°F Mostly Cloudy then Patchy Fog 12 to 15 mph N 14%
Thursday 41°F Patchy Fog then Partly Sunny 8 to 14 mph N 2%
Thursday Night 27°F Mostly Cloudy 1 to 7 mph E 0%
Friday 43°F Partly Sunny 2 to 6 mph S 0%
Friday Night 29°F Partly Cloudy 3 to 7 mph SSW 0%
Saturday 54°F Mostly Sunny 7 to 10 mph SW 3%
Saturday Night 32°F Partly Cloudy 7 mph W 2%
Sunday 54°F Sunny 5 to 9 mph SSW 2%
Sunday Night 37°F Partly Cloudy 9 mph SSW 0%
Monday 57°F Mostly Sunny 8 to 14 mph W 0%
Monday Night 34°F Mostly Clear 7 mph WSW 0%
Tuesday 53°F Mostly Sunny 7 mph SW 0%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Andover, SD

Last spring frost
May 6
First fall frost
Oct 4
Growing season
150 days
Hardiness zone
4b

Explore more for Andover, SD: full frost dates · planting calendar · South Dakota frost dates

Climate data from the nearest NOAA station, Andover #2, Sd (1.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.