Rapid Valley, South Dakota 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Rapid Valley SD
National Weather Service Forecast for:
Rapid Valley SD
Issued by: National Weather Service Rapid City, SD |
Updated: 2:10 pm MDT Jun 3, 2025 |
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This Afternoon
 Partly Sunny
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Tonight
 Mostly Cloudy then Slight Chance T-storms
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Wednesday
 Showers Likely
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Wednesday Night
 Slight Chance T-storms
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Thursday
 Showers Likely
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Thursday Night
 Chance T-storms then Partly Cloudy
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Friday
 Mostly Sunny then Slight Chance Showers
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Friday Night
 Mostly Clear
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Saturday
 Partly Sunny then Slight Chance T-storms
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Hi 67 °F |
Lo 47 °F |
Hi 63 °F |
Lo 45 °F |
Hi 60 °F |
Lo 46 °F |
Hi 72 °F |
Lo 50 °F |
Hi 80 °F |
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This Afternoon
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Partly sunny, with a high near 67. North wind 10 to 15 mph, with gusts as high as 25 mph. |
Tonight
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A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 47. North wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 15 mph. |
Wednesday
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Showers and thunderstorms likely, mainly before 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 63. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. |
Wednesday Night
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A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers and thunderstorms after midnight. Increasing clouds, with a low around 45. South wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 20%. |
Thursday
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A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 60. Light and variable wind becoming east 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%. |
Thursday Night
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A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 46. Northeast wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 30%. |
Friday
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A 20 percent chance of showers after noon. Mostly sunny, with a high near 72. West wind 5 to 10 mph becoming east in the morning. Winds could gust as high as 20 mph. |
Friday Night
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Mostly clear, with a low around 50. Southeast wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 15 mph. |
Saturday
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A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80. |
Saturday Night
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Mostly clear, with a low around 55. |
Sunday
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Sunny, with a high near 79. |
Sunday Night
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Partly cloudy, with a low around 54. |
Monday
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Sunny, with a high near 83. |
Forecast from NOAA-NWS
for Rapid Valley SD.
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Weather Forecast Discussion
386
FXUS63 KUNR 031858
AFDUNR
Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
1258 PM MDT Tue Jun 3 2025
.KEY MESSAGES...
- Low chances (15-25%) for a few showers and a thunderstorm or two
to develop over the Black Hills later this afternoon and
evening.
- Chance (50-70%) for showers and maybe a few thunderstorms for
Wednesday and Thursday.
- Warming trend through the weekend with highs 5-10F above average
(upper 70s to 80s)
&&
.DISCUSSION...(This Evening Through Tuesday)
Issued at 1258 PM MDT Tue Jun 3 2025
Current visible satellite shows CU field over the region as upper
level trof axis swings through the Northern Plains. Temperatures
are mild, hovering at around 60 for the western SD plains while
temperatures in northeastern WY and the Black Hills are in the
50s. Unsettled cyclonic flow overhead may support a few showers
(and maybe a few lightning strikes) over the Black Hills this
afternoon and evening.
Weak shortwave crosses the southern half of the CWA tomorrow and
will bring clouds, rain showers (maybe a few storms), and cool
temperatures to the CWA. Highs will be in the low to mid 60s.
Another shortwave moves through on Thursday. This system looks to
be slightly stronger but again, aside from cloudy skies, rain
showers, and a few storms, am not expecting much impactful weather
from this system. In terms of precip, LREF probs depict 70-90+%
chances for 0.25+" total QPF (for Wed/Thu) over the southern tier
of the CWA (primarily across the Black Hills and along and south
of I-90) with lower probs north of I-90. With weak buoyancy and
low shear, severe weather isn`t a concern at this time.
Ridge builds over the west coast late in the week which will
support a warming trend for the CWA and highs around 5-10F above
average as a result. Recent deterministic GFS runs point at low
chances for showers and maybe a few storms over northwestern SD
Saturday afternoon and evening as an upper low passes to the north
of the region and an attendant sfc trof/weak front crosses the
CWA. However, Canadian and ECMWF runs have been fairly consistent
in keeping convection further east of the CWA.
&&
.AVIATION...(For the 18Z TAFS Through 18Z Wednesday)
Issued At 950 AM MDT Tue Jun 3 2025
Mostly VFR conditions expected this afternoon through tonight,
though a few showers may develop over the Black Hills with LCL
MVFR conditions. Showers will move into northeastern WY/Black
Hills/far southwestern SD later tonight with associated LCL MVFR
conditions.
&&
.UNR WATCHES/WARNINGS/ADVISORIES...
SD...None.
WY...None.
&&
$$
DISCUSSION/KEY MESSAGES...Wong
AVIATION...Wong
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