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: 4:39 pm CDT Mar 30, 2025 |
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Tonight
 Slight Chance Snow
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Monday
 Mostly Cloudy
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Monday Night
 Showers Likely and Breezy
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Tuesday
 Rain Likely and Breezy
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Tuesday Night
 Rain/Snow Likely
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Wednesday
 Breezy. Snow Likely then Rain/Snow Likely
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Wednesday Night
 Slight Chance Rain/Snow then Slight Chance Snow
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Thursday
 Partly Sunny
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Thursday Night
 Partly Cloudy
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Lo 22 °F |
Hi 40 °F |
Lo 35 °F |
Hi 43 °F |
Lo 29 °F |
Hi 37 °F |
Lo 25 °F |
Hi 43 °F |
Lo 25 °F |
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Hazardous Weather Outlook
Tonight
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A slight chance of snow between 7pm and 4am. Mostly cloudy, with a low around 22. Northwest wind 5 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 20%. |
Monday
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Mostly cloudy, with a high near 40. Wind chill values as low as 16. Light and variable wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 18 mph. |
Monday Night
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Showers likely, mainly after 1am. Mostly cloudy, with a low around 35. Breezy, with a southeast wind 13 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. |
Tuesday
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Rain likely, mainly after 1pm. Mostly cloudy, with a high near 43. Breezy, with a southeast wind around 22 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. |
Tuesday Night
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Rain likely, possibly mixed with snow, becoming all snow after 4am. Cloudy, with a low around 29. East wind 14 to 16 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible. |
Wednesday
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Snow likely before 4pm, then a chance of rain and snow. Mostly cloudy, with a high near 37. Breezy, with a northwest wind 20 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible. |
Wednesday Night
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A slight chance of rain and snow before 7pm, then a slight chance of snow between 7pm and 1am. Mostly cloudy, with a low around 25. Northwest wind 10 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 20%. |
Thursday
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Partly sunny, with a high near 43. North wind 8 to 10 mph, with gusts as high as 15 mph. |
Thursday Night
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Partly cloudy, with a low around 25. |
Friday
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Mostly sunny, with a high near 50. |
Friday Night
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A slight chance of showers. Mostly cloudy, with a low around 27. |
Saturday
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Mostly sunny, with a high near 51. |
Saturday Night
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Partly cloudy, with a low around 25. |
Sunday
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Sunny, with a high near 48. |
Forecast from NOAA-NWS
for Winner Regional Airport SD.
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Weather Forecast Discussion
416
FXUS63 KUNR 301950
AFDUNR
Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
150 PM MDT Sun Mar 30 2025
.KEY MESSAGES...
-Light snow will continue into the evening over far western SD
into Northeast WY, with little to no accumulation expected
-A series of disturbances will bring chances for rain/snow to the
region through much of the week
-A stronger disturbance will bring a good chance of rain and snow
to the region Tues, with snow accumulations possible Tues night
-Temperatures to remain mainly below seasonal norms through the
week
&&
.DISCUSSION...(This Evening Through Sunday)
Issued at 149 PM MDT Sun Mar 30 2025
Potent Pac upper jet continues to support unsettled flow over the
Pac, bringing a series of impulses into the western CONUS. This
pattern will continue through the week, with several rounds of Pac
systems into the region. Weak impulse continues to move east
across the region today with another around of light snow moving
across northeast WY and far western SD. Light snow will move east
and diminish through evening, with little to no accums expected.
Cool and moist easterly upslope flow will continue overnight with
widespread low clouds. Patchy fog will also be possible along the
north and east slopes of the Black Hills. Deeper trough will move
into the western CONUS Monday and support increasing return flow
over the region. Gusty southeast winds will develop Monday with
some gusts over 40 mph possible across far NW SD. Temps will
struggle into 30s/40s given cloud cover and moist upslope flow,
with the warmest temps in western Campbell County where the BL
will mix out. Weak impulse will traverse the flow ahead of this
system with associated steep lapse rates and will support
scattered rain or snow showers over the western third. Isolate
thunderstorms will also be possible from northeast WY into far
southwest SD in the late afternoon and early evening. This area of
lift will support slightly better chances for mostly rain on the
SD Plains Monday night where pos theta-e adv will ensue. Some
freezing rain or snow will also be possible across NW SD a well,
hinging on how the thermal fields set up. The main/stronger wave
will push out of the Rockies Tue and support a good chance of rain
and snow over the region. Rain will change to snow Tue night with
some potential for concentrated banding per steep mid level
lapses rates and a strong FGEN signal. Low confidence remains per
details WRT this system, given poor model consensus and the fact
that snow amounts will likely be driven by mesoscale processes.
After Wed, things dry out with just some chances for showers at
times as semi-unsettled westerly flow continues. Temps will also
moderate some by the end of the week, but still remain around
seasonal norms.
&&
.AVIATION...(For the 18Z TAFS Through 18Z Monday)
Issued At 1108 AM MDT Sun Mar 30 2025
IFR/LIFR cigs will continue across much of the region through the
valid terminal forecast period. Areas of light snow in the KGCC
terminal will push east into the Black Hills region through 00z
creating pockets of MVFR/IFR vsbys as well. Look for some
improvement in the cigs from west to east beginning late in the
terminal forecast period.
&&
.UNR WATCHES/WARNINGS/ADVISORIES...
SD...None.
WY...None.
&&
$$
DISCUSSION/KEY MESSAGES...JC
AVIATION...Hintz
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