National Weather Service Forecast for: Winner Regional Airport SD
Issued by: National Weather Service Rapid City, SD
Updated: 1:31 am CDT Aug 20, 2026
 
Overnight

Overnight: Mostly clear, with a steady temperature around 67. South wind around 14 mph, with gusts as high as 23 mph.
Mostly Clear

 Thursday

Thursday: Patchy smoke after 5pm. Sunny, with a high near 92. Southwest wind 10 to 13 mph becoming north in the afternoon. Winds could gust as high as 24 mph.
Sunny then
Patchy Smoke
 Thursday
Night
Thursday Night: Patchy smoke before 9pm. Mostly clear, with a low around 63. North wind 5 to 7 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.
Patchy Smoke
then Mostly
Clear
 Friday

Friday: Sunny, with a high near 90. Light and variable wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 61. East wind 5 to 10 mph, with gusts as high as 17 mph.
Partly Cloudy

 Saturday

Saturday: Sunny, with a high near 84. Light northeast wind becoming east 5 to 10 mph in the morning. Winds could gust as high as 17 mph.
Sunny

 Saturday
Night
Saturday Night: A 50 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 63.
Partly Cloudy
then Chance
T-storms
 Sunday

Sunday: A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 84. Breezy.
Chance
Showers and
Breezy
 Sunday
Night
Sunday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 65. Breezy.
Chance
T-storms and
Breezy
Lo 67 °F Hi 92 °F Lo 63 °F Hi 90 °F Lo 61 °F Hi 84 °F Lo 63 °F Hi 84 °F Lo 65 °F

 

Overnight
 
 Mostly clear, with a steady temperature around 67. South wind around 14 mph, with gusts as high as 23 mph.
Thursday
 
 Patchy smoke after 5pm. Sunny, with a high near 92. Southwest wind 10 to 13 mph becoming north in the afternoon. Winds could gust as high as 24 mph.
Thursday Night
 
 Patchy smoke before 9pm. Mostly clear, with a low around 63. North wind 5 to 7 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.
Friday
 
 Sunny, with a high near 90. Light and variable wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Friday Night
 
 Partly cloudy, with a low around 61. East wind 5 to 10 mph, with gusts as high as 17 mph.
Saturday
 
 Sunny, with a high near 84. Light northeast wind becoming east 5 to 10 mph in the morning. Winds could gust as high as 17 mph.
Saturday Night
 
 A 50 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 63.
Sunday
 
 A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 84. Breezy.
Sunday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 65. Breezy.
Monday
 
 Mostly sunny, with a high near 88.
Monday Night
 
 A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Tuesday
 
 A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Tuesday Night
 
 A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Wednesday
 
 Mostly sunny, with a high near 85.

 

Forecast from NOAA-NWS for Winner Regional Airport SD.