National Weather Service Forecast for: Sisseton SD
Issued by: National Weather Service Aberdeen, SD
Updated: 3:36 am CDT Jun 30, 2026
 
Overnight

Overnight: Partly cloudy, with a low around 60. Southwest wind around 11 mph.
Partly Cloudy

 Tuesday

Tuesday: Sunny, with a high near 86. West southwest wind 14 to 18 mph, with gusts as high as 29 mph.
Sunny

 Tuesday
Night
Tuesday Night: Increasing clouds, with a low around 64. Southwest wind 5 to 14 mph, with gusts as high as 23 mph.
Increasing
Clouds

 Wednesday

Wednesday: A chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 3pm. Cloudy through mid morning, then gradual clearing, with a high near 88. Light and variable wind becoming southwest around 6 mph in the morning. Chance of precipitation is 30%.
Chance
Showers

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 64. West northwest wind 5 to 7 mph becoming southwest after midnight.
Mostly Clear

 Thursday

Thursday: A slight chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 93. Light and variable wind becoming southeast 5 to 9 mph in the morning. Chance of precipitation is 20%.
Sunny then
Slight Chance
T-storms
 Thursday
Night
Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Southeast wind 5 to 9 mph becoming west after midnight. Chance of precipitation is 70%.
Showers
Likely

 Friday

Friday: Mostly sunny and hot, with a high near 90. Southwest wind 5 to 10 mph becoming east in the morning.
Hot

 Friday
Night
Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 68. East wind 8 to 11 mph. Chance of precipitation is 60%.
Chance
T-storms then
Showers
Likely
Lo 60 °F Hi 86 °F Lo 64 °F Hi 88 °F Lo 64 °F Hi 93 °F Lo 67 °F Hi 90 °F Lo 68 °F

Hazardous Weather Outlook
 

Overnight
 
 Partly cloudy, with a low around 60. Southwest wind around 11 mph.
Tuesday
 
 Sunny, with a high near 86. West southwest wind 14 to 18 mph, with gusts as high as 29 mph.
Tuesday Night
 
 Increasing clouds, with a low around 64. Southwest wind 5 to 14 mph, with gusts as high as 23 mph.
Wednesday
 
 A chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 3pm. Cloudy through mid morning, then gradual clearing, with a high near 88. Light and variable wind becoming southwest around 6 mph in the morning. Chance of precipitation is 30%.
Wednesday Night
 
 Mostly clear, with a low around 64. West northwest wind 5 to 7 mph becoming southwest after midnight.
Thursday
 
 A slight chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 93. Light and variable wind becoming southeast 5 to 9 mph in the morning. Chance of precipitation is 20%.
Thursday Night
 
 Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Southeast wind 5 to 9 mph becoming west after midnight. Chance of precipitation is 70%.
Friday
 
 Mostly sunny and hot, with a high near 90. Southwest wind 5 to 10 mph becoming east in the morning.
Friday Night
 
 A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 68. East wind 8 to 11 mph. Chance of precipitation is 60%.
Independence Day
 
 A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 87. Chance of precipitation is 30%.
Saturday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 50%.
Sunday
 
 A chance of showers. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Sunday Night
 
 Mostly clear, with a low around 64.
Monday
 
 Sunny, with a high near 89.

 

Forecast from NOAA-NWS for Sisseton SD.