Andover, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Andover, a town in Day County, South Dakota.
Tonight
37°F
Light Rain Likely
A chance of rain before midnight, 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 29 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Andover
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 37°F | Light Rain Likely | 14 to 17 mph NNW | 73% |
| Wednesday | 43°F | Light Rain | 17 mph NNW | 80% |
| 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 12 mph WSW | 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 | 35°F | Mostly Clear | 7 mph WSW | 0% |
| Tuesday | 53°F | Mostly Sunny | 7 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Andover (45.410, -97.904). Updated through the day.
Growing snapshot for Andover
Last spring frost
May 6
First fall frost
Oct 4
Growing season
150 days
Hardiness zone
4b
More local growing data for Andover: nearby ZIP 57422 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Andover #2, Sd (1.3 mi from Andover). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.