Aberdeen, South Dakota 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Aberdeen SD
National Weather Service Forecast for:
Aberdeen SD
Issued by: National Weather Service Aberdeen, SD |
Updated: 6:34 pm CDT Jul 9, 2025 |
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Tonight
 Severe T-Storms
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Thursday
 Hot
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Thursday Night
 T-storms Likely then Showers Likely
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Friday
 Chance T-storms
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Friday Night
 Partly Cloudy
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Saturday
 Sunny
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Saturday Night
 Partly Cloudy
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Sunday
 Hot
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Sunday Night
 Mostly Clear
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Lo 65 °F |
Hi 92 °F |
Lo 65 °F |
Hi 81 °F |
Lo 56 °F |
Hi 84 °F |
Lo 60 °F |
Hi 93 °F |
Lo 63 °F |
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Hazardous Weather Outlook
Heat Advisory
Tonight
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A chance of showers and thunderstorms, mainly before midnight. Some of the storms could be severe. Mostly cloudy, with a low around 65. South southeast wind 8 to 17 mph becoming west northwest after midnight. Chance of precipitation is 40%. |
Thursday
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Mostly sunny and hot, with a high near 92. South southeast wind 7 to 11 mph, with gusts as high as 21 mph. |
Thursday Night
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Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm after 10pm. Mostly cloudy, with a low around 65. South wind 6 to 10 mph becoming west after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. |
Friday
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A chance of showers and thunderstorms. Partly sunny, with a high near 81. North wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. |
Friday Night
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Partly cloudy, with a low around 56. North northwest wind 6 to 14 mph, with gusts as high as 23 mph. |
Saturday
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Sunny, with a high near 84. West northwest wind 6 to 10 mph. |
Saturday Night
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Partly cloudy, with a low around 60. Southwest wind around 8 mph becoming south southeast in the evening. |
Sunday
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Sunny and hot, with a high near 93. South southwest wind 8 to 13 mph, with gusts as high as 22 mph. |
Sunday Night
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Mostly clear, with a low around 63. South wind 7 to 10 mph becoming northeast after midnight. Winds could gust as high as 20 mph. |
Monday
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Mostly sunny and hot, with a high near 91. |
Monday Night
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A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 40%. |
Tuesday
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A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 40%. |
Tuesday Night
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A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 30%. |
Wednesday
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A slight chance of showers. Partly sunny, with a high near 75. Chance of precipitation is 20%. |
Forecast from NOAA-NWS
for Aberdeen SD.
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Weather Forecast Discussion
818
FXUS63 KABR 092046
AFDABR
Area Forecast Discussion
National Weather Service Aberdeen SD
346 PM CDT Wed Jul 9 2025
.KEY MESSAGES...
- Enhanced/Slight risk (level 3/2 of 5) for severe storms across
the region into the evening hours. Hail up to 2 inches in
diameter possible over central/north central SD late this
afternoon, with gusts up to 75 mph into this evening.
- Heat and humidity today and Thursday (especially over central
South Dakota), with highs in the 90s and heat indices
approaching 100 degrees.
- Marginal Risk (level 1 of 5) for severe storms
Thursday/Thursday night. Main risks are hail up to around
quarter size and wind gusts of 60 mph.
&&
.DISCUSSION...
Issued at 345 PM CDT Wed Jul 9 2025
Convection is beginning to fire along the surface boundary across
northwest SD into southwest ND. Swath of very unstable air with
MLCAPE values in excess of 4000 J/KG lies from central ND, southeast
into the James River valley. Bulk shear values are around 30 knots
over western SD. So, although the current storms are not developing
over the most unstable air, anything that moves closer to central SD
will be approaching very buoyant air. Parameters continue to support
potential for large hail up to 2 inches in diameter across central
SD, plus a strong wind threat up to around 75mph also over central
SD eastward into the James River valley. Severe watch 498 is already
in effect across central SD into the evening hours.
Also for this afternoon/evening, went ahead and issued a Heat
Advisory as several locations were in that 100-108 heat index range,
a bit higher and more expansive than what the forecast looked like
this morning. Dewpoints are a bit higher than forecast in some
areas, leading to the higher heat indices. Also, actual air
temperatures are flirting with 100 over central SD.
More potential for precipitation and perhaps strong/severe storms
arrives Thursday/Thursday night. Although, the timing of the mid-
level wave and associated best lift/ascent may be later in the
evening, thus leaving more widespread coverage to hold off until the
overnight hours.
Cold front moves through the region on Friday, bringing in cooler
air as 850mb temps drop into the low to mid teens C. High
temperatures drop back into the upper 70s to low 80s on Friday,
along with lowering dewpoints.
&&
.AVIATION /18Z TAFS THROUGH 18Z THURSDAY/...
Issued at 1241 PM CDT Wed Jul 9 2025
Terminals KABR,KATY,KPIR,KMBG
VFR conditions across the region through much of the afternoon.
Will be watching potential for TSRA/+TSRA across central SD
(KPIR/KMBG) late afternoon into early evening, then spreading
eastward towards KABR/KATY later in the evening/nighttime. Still
some questions in regards to areal coverage and placement of said
storms, so will handle with PROB30 for the time being until radar
activity lights up and we can get an idea of where storms will
track. Heavier downpours have the potential for MVFR/IFR VSBY.
Severe storms are possible, with large hail (GR) and squall (SQ)
conditions in strong surface wind gusts from some westerly
component perhaps in excess of 60 knots.
&&
.ABR WATCHES/WARNINGS/ADVISORIES...
SD...Heat Advisory until 8 PM CDT /7 PM MDT/ this evening for
SDZ003>006-009-010-015>018-033>037-045-048-051.
MN...None.
&&
$$
DISCUSSION...TMT
AVIATION...TMT
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