Winner, South Dakota 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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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: 4:29 am CDT Jun 6, 2025 |
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Overnight
 Areas Dense Fog
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Friday
 Areas Dense Fog then Slight Chance Showers
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Friday Night
 Mostly Cloudy
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Saturday
 Sunny
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Saturday Night
 Partly Cloudy then Chance Showers
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Sunday
 Sunny and Breezy
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Sunday Night
 Mostly Clear and Breezy then Mostly Clear
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Monday
 Sunny and Breezy
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Monday Night
 Mostly Clear
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Lo 56 °F |
Hi 71 °F |
Lo 52 °F |
Hi 82 °F |
Lo 54 °F |
Hi 73 °F |
Lo 52 °F |
Hi 71 °F |
Lo 49 °F |
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Hazardous Weather Outlook
Dense Fog Advisory
Overnight
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Areas of dense fog. Otherwise, cloudy, with a steady temperature around 56. Northwest wind around 5 mph. |
Friday
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A 20 percent chance of showers after 4pm. Areas of dense fog before 11am. Otherwise, mostly cloudy, with a high near 71. North wind around 5 mph. |
Friday Night
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Mostly cloudy, with a low around 52. Northeast wind around 5 mph becoming south after midnight. |
Saturday
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Sunny, with a high near 82. Southwest wind around 10 mph, with gusts as high as 20 mph. |
Saturday Night
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A 30 percent chance of showers after 1am. Partly cloudy, with a low around 54. West wind 10 to 15 mph, with gusts as high as 25 mph. |
Sunday
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Sunny, with a high near 73. Breezy, with a northwest wind 15 to 20 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph. |
Sunday Night
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Mostly clear, with a low around 52. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph. |
Monday
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Sunny, with a high near 71. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 35 mph. |
Monday Night
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Mostly clear, with a low around 49. |
Tuesday
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Sunny, with a high near 81. |
Tuesday Night
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Mostly clear, with a low around 58. |
Wednesday
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Sunny, with a high near 88. Breezy. |
Wednesday Night
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A chance of showers and thunderstorms. Partly cloudy, with a low around 64. Breezy. |
Thursday
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A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Breezy. |
Forecast from NOAA-NWS
for Winner Regional Airport SD.
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Weather Forecast Discussion
460
FXUS63 KUNR 060814
AFDUNR
Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
214 AM MDT Fri Jun 6 2025
.KEY MESSAGES...
- Some dense fog this morning mainly east of the Black Hills
- Isolated/scattered showers/thunderstorms this afternoon/evening
and Saturday afternoon/evening
- Warmer/drier Sunday through Tuesday
- Active southwest flow developing Wednesday through the end of
next week
&&
.DISCUSSION...(Today Through Thursday)
Issued at 208 AM MDT Fri Jun 6 2025
08z surface analysis had weak high over the CWA with
light/variable winds. Antecedent moisture and mostly clear skies
allowing fog/stratus (per METARs/nighttime microphysics RGB) to
develop early this morning, particularly east of the Black Hills
where a Dense Fog Advisory has been hoisted through 15z. Water
vapour loop had upper trough from Hudson Bay to CA with a
shortwave over the ID/MT/WY border, which will affect the area
later today.
Early this morning, areas of Dense Fog will affect the western SD
plains east of the Black Hills. Will continue to monitor if
expansion is needed.
Rest of today/tonight, ID/MT/WY shortwave slides southeast into
the central plains. Main forcing southwest of the CWA, but diurnal
heating will support 250-500J/kg mean SBCAPE from the Black Hills
south/southwest. North end of shortwave combined with terrain
will be enough for isolated/scattered afternoon/evening
convection. Shear is relatively weak with CAMs not painting any
concerning strength to updrafts. Temperatures will be near
guidance.
Saturday, fast-moving upper low over central Canada drags a cool
front through the CWA with 2-4mb/3hr pressure rises and 20-40kt
850mb winds. Breezy/windy spots (NBM 20-40% chance >45mph gusts)
foreseen. Mean SBCAPE along cool front ~500J/kg with increasing
0-6km bulk shear. Wouldn`t be surprised to see a few strong storms
over the far northern reaches of our CWA, but best combination
further northeast, which is inline with SPC HREF portrayal/Day 2
Outlook. Temperatures will be near guidance and much closer to
summer than recent days.
Sunday through Wednesday, upper ridge builds from the Rockies
into the northern Plains. Thermal ridge perks up for
Tuesday/Wednesday with highs careening into the 80s. Upper trough
develops over the western CONUS for the end of the week creating
southwest flow over the northern Plains. If enough moisture
becomes available, suspect active/severe weather season will
begin given subjective pattern recognition and a hint from CSU MLP
guidance. Most ensemble guidance supports temperatures slightly
above normal.
&&
.AVIATION...(For the 06Z TAFS Through 06Z Friday Night)
Issued At 952 PM MDT Thu Jun 5 2025
In the wake of afternoon/evening showers, areas of BR/FG are
developing over the western/central SD plains and far
northeastern WY. MVFR to localized LIFR conditions have already
materialized, with these conditions expected to expand through the
night. Dense fog and accompanying VLIFR conditions may develop
over portions of the west central SD plains by 09z and persist for
several hours. Most significant reductions to vsbys are expected
to remain east of KRAP, and upper-level clouds arriving from the
west may disrupt fog disruption entirely in and around the TAF
site. However, a brief period of LIFR conditions cannot be ruled
out.
Improvement to VFR conditions is expected area-wide by around 15z,
but additional SHRA/TSRA may lead to reduced cigs/vsbys again
tomorrow morning and afternoon.
&&
.UNR WATCHES/WARNINGS/ADVISORIES...
SD...Dense Fog Advisory until 9 AM MDT /10 AM CDT/ this morning for
SDZ002-013-014-030>032-042>044-046-047-049-073-076>078.
WY...None.
&&
$$
DISCUSSION/KEY MESSAGES...Helgeson
AVIATION...Sherburn
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