National Weather Service Forecast for: Winner Regional Airport SD
Issued by: National Weather Service Rapid City, SD
Updated: 9:07 pm CDT Jun 18, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 54. East wind 6 to 8 mph becoming south after midnight. Winds could gust as high as 16 mph.
Partly Cloudy

 Juneteenth

Juneteenth: Mostly cloudy, then gradually becoming sunny, with a high near 81. Northwest wind 7 to 13 mph, with gusts as high as 23 mph.
Decreasing
Clouds

 Friday
Night
Friday Night: Partly cloudy, with a low around 52. Northwest wind 7 to 11 mph becoming east after midnight. Winds could gust as high as 21 mph.
Partly Cloudy

 Saturday

Saturday: Showers likely, mainly after 1pm. Increasing clouds, with a high near 78. East wind 8 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Slight Chance
Showers then
Showers
Likely
 Saturday
Night
Saturday Night: Showers and possibly a thunderstorm. Low around 54. East wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.
Showers

 Sunday

Sunday: Showers and possibly a thunderstorm. High near 67. East wind around 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
Showers

 Sunday
Night
Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.
Showers
Likely

 Monday

Monday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71.
Chance
Showers

 Monday
Night
Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Chance
T-storms
Lo 54 °F Hi 81 °F Lo 52 °F Hi 78 °F Lo 54 °F Hi 67 °F Lo 50 °F Hi 71 °F Lo 52 °F

 

Tonight
 
 Partly cloudy, with a low around 54. East wind 6 to 8 mph becoming south after midnight. Winds could gust as high as 16 mph.
Juneteenth
 
 Mostly cloudy, then gradually becoming sunny, with a high near 81. Northwest wind 7 to 13 mph, with gusts as high as 23 mph.
Friday Night
 
 Partly cloudy, with a low around 52. Northwest wind 7 to 11 mph becoming east after midnight. Winds could gust as high as 21 mph.
Saturday
 
 Showers likely, mainly after 1pm. Increasing clouds, with a high near 78. East wind 8 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Saturday Night
 
 Showers and possibly a thunderstorm. Low around 54. East wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.
Sunday
 
 Showers and possibly a thunderstorm. High near 67. East wind around 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
Sunday Night
 
 Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.
Monday
 
 A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71.
Monday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Tuesday
 
 A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 74.
Tuesday Night
 
 Mostly clear, with a low around 50.
Wednesday
 
 Mostly sunny, with a high near 77.
Wednesday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 52.
Thursday
 
 A chance of showers and thunderstorms. Partly sunny, with a high near 78.

 

Forecast from NOAA-NWS for Winner Regional Airport SD.