Nisland, SD Weather & Growing Conditions
Tonight
55°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms between midnight and 3am, then patchy fog and a chance of showers and thunderstorms. Mostly cloudy. Low around 55, with temperatures rising to around 57 overnight. East wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Mostly Cloudy then Chance Showers And Thunderstorms | 6 to 9 mph E | 40% |
| Saturday | 66°F | Showers And Thunderstorms Likely | 6 to 13 mph E | 67% |
| Saturday Night | 52°F | Showers And Thunderstorms Likely | 13 mph E | 74% |
| Sunday | 60°F | Rain Showers | 13 mph E | 95% |
| Sunday Night | 48°F | Rain Showers | 10 to 16 mph E | 81% |
| Monday | 65°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 23 mph E | 23% |
| Monday Night | 48°F | Partly Cloudy | 16 to 23 mph SE | 3% |
| Tuesday | 74°F | Mostly Sunny | 15 to 28 mph SE | 2% |
| Tuesday Night | 52°F | Partly Cloudy | 5 to 26 mph SE | 7% |
| Wednesday | 78°F | Mostly Sunny | 5 to 10 mph SE | 14% |
| Wednesday Night | 53°F | Mostly Clear | 5 to 9 mph SW | 12% |
| Thursday | 80°F | Sunny | 5 to 15 mph E | 5% |
| Thursday Night | 54°F | Partly Cloudy | 8 to 16 mph SE | 5% |
| Friday | 81°F | Mostly Sunny | 8 to 21 mph SE | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Nisland, SD
Last spring frost
May 8
First fall frost
Oct 1
Growing season
144 days
Hardiness zone
4b
Explore more for Nisland, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Newell, Sd (9.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.