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Winner, South Dakota 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Winner Regional Airport SD
National Weather Service Forecast for: Winner Regional Airport SD
Issued by: National Weather Service Rapid City, SD
Updated: 4:28 am CDT Aug 10, 2025
 
Today

Today: Areas of smoke after 10am. Mostly sunny, with a high near 82. Northwest wind around 10 mph, with gusts as high as 20 mph.
Areas Smoke

Tonight

Tonight: Areas of smoke. Partly cloudy, with a low around 59. Northwest wind 5 to 10 mph becoming southeast in the evening.
Areas Smoke

Monday

Monday: Sunny, with a high near 89. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunny

Monday
Night
Monday Night: Mostly clear, with a low around 62. Southwest wind around 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Mostly Clear

Tuesday

Tuesday: Sunny, with a high near 86. North wind around 10 mph, with gusts as high as 20 mph.
Sunny

Tuesday
Night
Tuesday Night: Mostly clear, with a low around 64. Northeast wind around 10 mph becoming south after midnight. Winds could gust as high as 20 mph.
Mostly Clear

Wednesday

Wednesday: Sunny, with a high near 94. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Sunny then
Sunny and
Breezy
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 70. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Mostly Clear
and Breezy
Thursday

Thursday: Sunny, with a high near 96.
Sunny

Hi 82 °F Lo 59 °F Hi 89 °F Lo 62 °F Hi 86 °F Lo 64 °F Hi 94 °F Lo 70 °F Hi 96 °F

 

Today
 
Areas of smoke after 10am. Mostly sunny, with a high near 82. Northwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
 
Areas of smoke. Partly cloudy, with a low around 59. Northwest wind 5 to 10 mph becoming southeast in the evening.
Monday
 
Sunny, with a high near 89. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
 
Mostly clear, with a low around 62. Southwest wind around 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Tuesday
 
Sunny, with a high near 86. North wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
 
Mostly clear, with a low around 64. Northeast wind around 10 mph becoming south after midnight. Winds could gust as high as 20 mph.
Wednesday
 
Sunny, with a high near 94. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
 
Mostly clear, with a low around 70. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday
 
Sunny, with a high near 96.
Thursday Night
 
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70.
Friday
 
Mostly sunny, with a high near 93.
Friday Night
 
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Saturday
 
Mostly sunny, with a high near 91.

 

Forecast from NOAA-NWS for Winner Regional Airport SD.

Weather Forecast Discussion
752
FXUS63 KUNR 100733
AFDUNR

Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
133 AM MDT Sun Aug 10 2025

.KEY MESSAGES...

- Areas smoke/haze through Monday, especially for western SD
- Seasonally warm/hot temperatures expected next week with
  elevated fire weather conditions developing

&&

.DISCUSSION...(Today Through Saturday)
Issued at 131 AM MDT Sun Aug 10 2025

07z surface analysis had weak high over the CWA. Smoke/haze is
likely filtering into western SD per extrapolation of last
evening`s satellite loops/HRRR smoke guidance. Water vapour loop
had upper low over central MB with trough into the southern
Rockies.

Today/tonight, upper trough shifts east as 100kt jet on back side
slides into the plains. Weak lift over the CWA may assist limited
buoyancy/shear and produce some thunderstorms this
afternoon/early evening from the Black Hills southward.
Temperatures will be tempered by forecast smoke a skosh.

Monday, northwest flow aloft becomes well-established as upper
trough shifts northeast into Hudson Bay. Weak wave looks to drop a
weak cool front through the area during peak insolation. Moisture
will be limited, but a few CAMs sprinkle northwest SD with
isolated convection. If smoke shifts east as forecast,
temperatures should be near guidance.

Tuesday will slightly cooler on the western SD plains behind the
cool front, but then southwest flow aloft develops for
Wednesday/Thursday allowing thermal ridge to expand into the
northern plains. Sharp warm-up per ensemble guidance with 90s
common for MaxT and perhaps a few 100F readings as ground dries
out. A slightly more active pattern develops by Friday into next
weekend as weak shortwaves rotate around upper ridge in place over
the south-central CONUS. Temperature spreads expand, so
confidence decreases with regard to warm vs hot MaxTs.

&&

.AVIATION...(For the 06Z TAFS Through 06Z Sunday Night)
Issued At 924 PM MDT Sat Aug 9 2025

VFR conditions through the period. Isolated showers and
thunderstorms are possible Sunday afternoon across northeast WY
and far western SD.

&&

.FIRE WEATHER...
Issued At 131 AM MDT Sun Aug 10 2025

Drier weather expected through Thursday with hot temperatures
returning for Wednesday/Thursday along with minimum afternoon
relative humidities in the teens for northeastern WY/southwestern
SD. Wind speeds may be sufficient for the development of elevated
fire weather conditions, particularly in areas where seasonal
fuels are starting to dry out significantly.

&&

.UNR WATCHES/WARNINGS/ADVISORIES...
SD...None.
WY...None.
&&

$$

DISCUSSION/KEY MESSAGES...Helgeson
AVIATION...JC
FIRE WEATHER...Helgeson
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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