Sisseton, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sisseton, a city in Roberts County, South Dakota.
Today
73°F
Sunny
Sunny, with a high near 73. West northwest wind around 12 mph.
7-day forecast for Sisseton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Sunny | 12 mph WNW | 0% |
| Tonight | 54°F | Mostly Clear | 5 to 8 mph WSW | 0% |
| Wednesday | 79°F | Sunny | 8 to 12 mph WSW | 0% |
| Wednesday Night | 61°F | Partly Cloudy | 7 to 21 mph SW | 2% |
| Thursday | 83°F | Sunny | 12 to 21 mph SW | 7% |
| Thursday Night | 63°F | Mostly Clear | 9 to 15 mph SW | 7% |
| Friday | 84°F | Sunny | 9 to 13 mph WSW | 7% |
| Friday Night | 61°F | Mostly Clear | 5 to 9 mph E | 8% |
| Saturday | 81°F | Slight Chance Rain Showers | 5 to 12 mph ESE | 15% |
| Saturday Night | 61°F | Slight Chance Showers And Thunderstorms | 7 to 12 mph E | 20% |
| Sunday | 81°F | Slight Chance Rain Showers then Mostly Sunny | 6 to 10 mph ENE | 20% |
| Sunday Night | 62°F | Partly Cloudy then Chance Rain Showers | 8 mph ENE | 28% |
| Monday | 78°F | Chance Rain Showers | 7 to 12 mph NE | 28% |
| Monday Night | 61°F | Slight Chance Rain Showers | 5 to 10 mph NNE | 19% |
Forecast source: National Weather Service (api.weather.gov) for Sisseton (45.662, -97.045). Updated through the day.
Growing snapshot for Sisseton
Last spring frost
May 4
First fall frost
Oct 3
Growing season
151 days
Hardiness zone
4b
More local growing data for Sisseton: nearby ZIP 57262 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Agency Village
Claire City
Corona
Long Hollow
New Effington
Peever
Peever Flats
Rosholt
White Rock Colony
Wilmot
Climate data from the nearest NOAA station, Sisseton, Sd (1.7 mi from Sisseton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.