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South Dakota weather for September 21, 2026

The day's Local Storm Reports for South Dakota on September 21, 2026 break down this way: 36 reports of rainfall, topping 2.61 inches at 1 NE Hisega.

Previous day: Sep 20

1 NE Hisega (rain): 2.61″1 NE Hisega (rain) 2.61″Tilford (rain): 2.58″1 NNW Hisega (rain): 1.96″1 N Hisega (rain): 1.85″4 E Hisega (rain): 1.80″2 W Black Hawk (rain): 1.72″7 N Wood (rain): 1.24″3 NNE Johnson Siding (rain): 1.18″7 N Kirley (rain): 1.17″4 NNE Johnson Siding (rain): 1.12″9 N Cedar Butte (rain): 1.09″Hermosa (rain): 1.03″6 N Hamill (rain): 0.99″12 NNW White River (rain): 0.92″2 SSW Norris (rain): 0.87″2 S Pactola Resv (rain): 0.85″2 SSE Ideal (rain): 0.84″4 NNE Summerset (rain): 0.82″5 WNW Hermosa (rain): 0.78″9 ENE Wewela (rain): 0.77″9 N Wewela (rain): 0.75″3 WNW Kadoka (rain): 0.74″4 WNW Dwtn Rapid City (rain): 0.72″6 NNW Dwtn Spearfish (rain): 0.71″8 ESE Prairie City (rain): 0.71″20 WSW Usta (rain): 0.70″2 WSW Sheridan Lake (rain): 0.68″3 NW Dwtn Spearfish (rain): 0.65″9 NNE Sturgis (rain): 0.64″5 ENE Custer (rain): 0.63″2 WNW Oelrichs (rain): 0.60″4 W Hot Springs (rain): 0.60″2 WNW Dwtn Spearfish (rain): 0.60″1 SSW Newell (rain): 0.59″4 S Dwtn Rapid City (rain): 0.52″Hot Springs (rain): 0.50″IAMNMTNENDWY
0.65″ 1.30″ 2.61″ Circle size scaleOne spotter report, sized by amount
Circles show spotter reports for South Dakota on September 21, 2026, each sized by amount. County lines mark the area, and the largest values are labeled. 36 reports are plotted.

Rainfall reports for the day

Rainfall reports for the day: South Dakota, September 21, 2026, 36 reports
AmountPlaceCountyReported byTime
2.61 inches1 NE HisegaPenningtonCoCoRaHS
2.58 inchesTilfordMeadeCoCoRaHS
1.96 inches1 NNW HisegaPenningtonCoCoRaHS
1.85 inches1 N HisegaPenningtonNWS Employee
1.80 inches4 E HisegaPenningtonCoCoRaHS
1.72 inches2 W Black HawkMeadeNWS Employee
1.24 inches7 N WoodMelletteCoCoRaHS
1.18 inches3 NNE Johnson SidingPenningtonCoCoRaHS
1.17 inches7 N KirleyHaakonCoCoRaHS
1.12 inches4 NNE Johnson SidingPenningtonCoCoRaHS
1.09 inches9 N Cedar ButteMelletteCoCoRaHS
1.03 inchesHermosaCusterCoCoRaHS
0.99 inches6 N HamillTrippCoCoRaHS
0.92 inches12 NNW White RiverMelletteCoCoRaHS
0.87 inches2 SSW NorrisMelletteCoCoRaHS
0.85 inches2 S Pactola ResvPenningtonCoCoRaHS
0.84 inches2 SSE IdealTrippCoCoRaHS
0.82 inches4 NNE SummersetMeadeCoCoRaHS
0.78 inches5 WNW HermosaCusterTrained Spotter
0.77 inches9 ENE WewelaTrippCoCoRaHS
0.75 inches9 N WewelaTrippCoCoRaHS
0.74 inches3 WNW KadokaJacksonCoCoRaHS
0.72 inches4 WNW Dwtn Rapid CityPenningtonCoCoRaHS
0.71 inches6 NNW Dwtn SpearfishLawrenceCoCoRaHS
0.71 inches8 ESE Prairie CityPerkinsCoCoRaHS
0.70 inches20 WSW UstaPerkinsCoCoRaHS
0.68 inches2 WSW Sheridan LakePenningtonCoCoRaHS
0.65 inches3 NW Dwtn SpearfishLawrenceCoCoRaHS
0.64 inches9 NNE SturgisMeadeCoCoRaHS
0.63 inches5 ENE CusterCusterCoCoRaHS
0.60 inches2 WNW OelrichsFall RiverCoCoRaHS
0.60 inches4 W Hot SpringsFall RiverCoCoRaHS
0.60 inches2 WNW Dwtn SpearfishLawrenceCoCoRaHS
0.59 inches1 SSW NewellButteCoCoRaHS
0.52 inches4 S Dwtn Rapid CityPenningtonNWS Employee
0.50 inchesHot SpringsFall RiverCoCoRaHS

Storms this day belongs to

Aurora verdict for South Dakota

No Kp reading for the night of September 21 has reached the record for South Dakota yet.

Was there aurora last night in South Dakota?

A single Local Storm Report from a spotter, covering snow, rain or hail, earns a state a day page. Reports come from the National Weather Service, and each day runs on US Eastern time so a single storm day covers the whole country at once.

National Weather Service offices file Local Storm Reports; the Iowa Environmental Mesonet of Iowa State University relays them to this page, where they appear as live spotter reports. The daily climate report is issued by the local National Weather Service forecast office and delivered to this page by the Iowa Environmental Mesonet of Iowa State University. Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.