National Weather Service Forecast for: Winner Regional Airport SD
Issued by: National Weather Service Rapid City, SD
Updated: 4:47 am CDT Jun 22, 2026
 
Overnight

Overnight: Scattered showers.  Patchy fog.  Otherwise, cloudy, with a low around 55. East wind around 8 mph.  Chance of precipitation is 40%.
Scattered
Showers and
Patchy Fog
Monday

Monday: Scattered showers, with thunderstorms also possible after 1pm.  Patchy fog before 11am.  Otherwise, cloudy, with a high near 69. Southeast wind 7 to 13 mph, with gusts as high as 23 mph.  Chance of precipitation is 30%.
Scattered
Showers and
Patchy Fog
Monday
Night
Monday Night: Showers and thunderstorms likely, mainly between 1am and 4am.  Mostly cloudy, with a low around 57. Southeast wind 9 to 13 mph becoming southwest after midnight. Winds could gust as high as 22 mph.  Chance of precipitation is 60%.
Slight Chance
T-storms then
T-storms
Likely
Tuesday

Tuesday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 75. Southwest wind 9 to 11 mph becoming north in the afternoon. Winds could gust as high as 21 mph.
Chance
T-storms

Tuesday
Night
Tuesday Night: Mostly clear, with a low around 52. North wind 6 to 9 mph becoming west after midnight. Winds could gust as high as 18 mph.
Mostly Clear

Wednesday

Wednesday: A 20 percent chance of showers after 1pm.  Mostly sunny, with a high near 74. North wind 8 to 13 mph, with gusts as high as 21 mph.
Mostly Sunny
then Slight
Chance
Showers
Wednesday
Night
Wednesday Night: A slight chance of showers and thunderstorms.  Mostly cloudy, with a low around 51. Chance of precipitation is 20%.
Slight Chance
T-storms

Thursday

Thursday: A slight chance of showers, with thunderstorms also possible after 1pm.  Mostly sunny, with a high near 74.
Slight Chance
Showers then
Slight Chance
T-storms
Thursday
Night
Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 54.
Chance
T-storms then
Showers
Likely
Lo 55 °F Hi 69 °F Lo 57 °F Hi 75 °F Lo 52 °F Hi 74 °F Lo 51 °F Hi 74 °F Lo 54 °F

 

Overnight
 
Scattered showers. Patchy fog. Otherwise, cloudy, with a low around 55. East wind around 8 mph. Chance of precipitation is 40%.
Monday
 
Scattered showers, with thunderstorms also possible after 1pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 69. Southeast wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Monday Night
 
Showers and thunderstorms likely, mainly between 1am and 4am. Mostly cloudy, with a low around 57. Southeast wind 9 to 13 mph becoming southwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 60%.
Tuesday
 
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75. Southwest wind 9 to 11 mph becoming north in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
 
Mostly clear, with a low around 52. North wind 6 to 9 mph becoming west after midnight. Winds could gust as high as 18 mph.
Wednesday
 
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 74. North wind 8 to 13 mph, with gusts as high as 21 mph.
Wednesday Night
 
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Chance of precipitation is 20%.
Thursday
 
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 74.
Thursday Night
 
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54.
Friday
 
A chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 75. Breezy.
Friday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Breezy.
Saturday
 
A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 85. Windy.
Saturday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Breezy.
Sunday
 
A slight chance of showers. Mostly sunny, with a high near 85. Breezy.

 

Forecast from NOAA-NWS for Winner Regional Airport SD.