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South Dakota weather for September 20, 2026

The day's Local Storm Reports for South Dakota on September 20, 2026 break down this way: 133 reports of rainfall, topping 2.72 inches at 1 NNW Piedmont.

Previous day: Sep 19

1 NNW Piedmont (rain): 2.72″1 NNW Piedmont (rain) 2.72″2 E Sturgis (rain): 2.51″3 ESE Cheyenne Crossing (rain): 2.04″3 NE Whitewood (rain): 2.01″Hill City (rain): 1.99″14 NNW Edgemont (rain): 1.97″14 NW Edgemont (rain): 1.90″2 SSW Custer (rain): 1.84″4 W Custer (rain): 1.83″8 WNW Fairburn (rain): 1.83″5 NE Hisega (rain): 1.82″Hot Springs (rain): 1.81″13 W Oglala (rain): 1.76″1 W Hisega (rain): 1.71″Johnson Siding (rain): 1.71″Hayward (rain): 1.71″4 W Hot Springs (rain): 1.70″Hot Springs (rain): 1.70″11 SSW Oelrichs (rain): 1.61″1 NW Black Hawk (rain): 1.60″2 WNW Custer (rain): 1.56″9 WNW Fairburn (rain): 1.53″Pringle (rain): 1.53″3 NE Hisega (rain): 1.50″4 W Hot Springs (rain): 1.50″2 WSW Sheridan Lake (rain): 1.48″3 NNE Harrington (rain): 1.47″Angostura Res (rain): 1.47″9 NNE Edgemont (rain): 1.42″8 SSE Deerfield (rain): 1.41″1 W Silver City (rain): 1.41″2 NNW Hot Springs (rain): 1.40″4 WSW Dwtn Rapid City (rain): 1.35″Mount Rushmore (rain): 1.34″5 E Martin (rain): 1.33″9 SW Angostura Res (rain): 1.31″Parmlee (rain): 1.31″2 ENE Sheridan Lake (rain): 1.31″4 E Hisega (rain): 1.31″5 SSW Hill City (rain): 1.30″13 SSW Oglala (rain): 1.30″3 SSE Hisega (rain): 1.28″Jewel Cave (rain): 1.25″Edgemont (rain): 1.24″1 NNW Hisega (rain): 1.23″2 SSW Oral (rain): 1.21″7 E Sturgis (rain): 1.19″11 ESE Oelrichs (rain): 1.18″2 W Black Hawk (rain): 1.17″5 ENE Custer (rain): 1.17″5 WNW Hermosa (rain): 1.17″1 W Wind Cave Visitors (rain): 1.15″2 S Pactola Res (rain): 1.15″4 S Hill City (rain): 1.15″2 W Deerfield Res (rain): 1.14″3 N Hayward (rain): 1.14″2 S Pactola Resv (rain): 1.14″4 SE Nemo (rain): 1.13″7 WSW Parmelee (rain): 1.13″1 ESE Mount Rushmore (rain): 1.12″5 NW Dwtn Rapid City (rain): 1.10″10 W Jewel Cave (rain): 1.10″1 ESE Pactola Resv (rain): 1.10″4 NNW Tilford (rain): 1.08″2 NNW Mount Rushmore (rain): 1.06″7 WSW Fairburn (rain): 1.06″2 SW Hisega (rain): 1.05″6 NNW Dwtn Spearfish (rain): 1.05″1 NE Hisega (rain): 1.05″1 ENE Custer (rain): 1.04″10 NNW Ellsworth AFB (rain): 1.02″1 NNE Edgemont (rain): 1.02″4 WNW Dwtn Rapid City (rain): 1.01″4 W Rapid City (rain): 1.00″5 SE Whitewood (rain): 1.00″2 ENE Edgemont (rain): 1.00″10 W Jewel Cave (rain): 0.98″3 WNW Mount Rushmore (rain): 0.97″5 NE Porcupine (rain): 0.96″6 W Hermosa (rain): 0.96″1 NNE Edgemont (rain): 0.95″1 SE Dwtn Rapid City (rain): 0.95″Nemo (rain): 0.94″3 NNE Johnson Siding (rain): 0.94″5 SSW Brownsville (rain): 0.93″4 W Dwtn Rapid City (rain): 0.91″4 WNW Cedar Butte (rain): 0.89″4 NNE Johnson Siding (rain): 0.89″7 SW Rapid City Arpt (rain): 0.88″7 W Ardmore (rain): 0.87″1 NNE Faith (rain): 0.83″2 NE Rockerville (rain): 0.83″Hermosa (rain): 0.83″1 NE Dwtn Rapid City (rain): 0.81″1 S White River (rain): 0.79″1 WNW Caputa (rain): 0.78″3 SW Hill City (rain): 0.78″1 E Dwtn Rapid City (rain): 0.78″6 WSW Provo (rain): 0.78″1 NNW Nisland (rain): 0.77″4 S Dwtn Rapid City (rain): 0.77″4 NNE Summerset (rain): 0.77″7 SSW Folsom (rain): 0.76″4 SE Dwtn Rapid City (rain): 0.76″2 ESE Dwtn Spearfish (rain): 0.73″27 WNW Castle Rock (rain): 0.73″14 WNW Lodgepole (rain): 0.72″7 ESE Rosebud (rain): 0.71″1 NNW Dwtn Rapid City (rain): 0.71″2 N White River (rain): 0.71″9 WSW Red Elm (rain): 0.70″1 ESE Camp Crook (rain): 0.69″2 W Hamill (rain): 0.68″1 N Buffalo (rain): 0.68″6 W New Underwood (rain): 0.68″Deerfield Res (rain): 0.67″11 S Folsom (rain): 0.65″2 SSE Dwtn Rapid City (rain): 0.65″8 S Sorum (rain): 0.64″Bison (rain): 0.64″11 WNW Belle Fourche (rain): 0.61″6 S Kadoka (rain): 0.60″Rapid City Arpt (rain): 0.59″4 NNE Colome (rain): 0.59″1 NE Winner (rain): 0.58″1 N Wewela (rain): 0.57″6 NE Summerset (rain): 0.57″1 ESE Ladner (rain): 0.56″1 SSW Hermosa (rain): 0.55″3 N Redig (rain): 0.53″6 W Rochford (rain): 0.52″Lead (rain): 0.51″5 SW Brownsville (rain): 0.50″IAMNMTNENDWY
0.68″ 1.36″ 2.72″ Circle size scaleOne spotter report, sized by amount
Circles show spotter reports for South Dakota on September 20, 2026, each sized by amount. County lines mark the area, and the largest values are labeled. 133 reports are plotted.

Rainfall reports for the day

Rainfall reports for the day: South Dakota, September 20, 2026, 133 reports
AmountPlaceCountyReported byTime
2.72 inches1 NNW PiedmontMeadeNWS Employee
2.51 inches2 E SturgisMeadeMesonet
2.04 inches3 ESE Cheyenne CrossingLawrenceCoCoRaHS
2.01 inches3 NE WhitewoodLawrenceTrained Spotter
1.99 inchesHill CityPenningtonCo-Op Observer
1.97 inches14 NNW EdgemontFall RiverMesonet
1.90 inches14 NW EdgemontFall RiverCoCoRaHS
1.84 inches2 SSW CusterCusterASOS
1.83 inches4 W CusterCusterMesonet
1.83 inches8 WNW FairburnCusterMesonet
1.82 inches5 NE HisegaPenningtonOther Federal
1.81 inchesHot SpringsFall RiverCoCoRaHS
1.76 inches13 W OglalaOglala LakotaMesonet
1.71 inches1 W HisegaPenningtonOther Federal
1.71 inchesJohnson SidingPenningtonOther Federal
1.71 inchesHaywardPenningtonOther Federal
1.70 inches4 W Hot SpringsFall RiverOther Federal
1.70 inchesHot SpringsFall RiverCoCoRaHS
1.61 inches11 SSW OelrichsFall RiverMesonet
1.60 inches1 NW Black HawkMeadeTrained Spotter
1.56 inches2 WNW CusterCusterMesonet
1.53 inches9 WNW FairburnCusterOther Federal
1.53 inchesPringleCusterOther Federal
1.50 inches3 NE HisegaPenningtonOther Federal
1.50 inches4 W Hot SpringsFall RiverCoCoRaHS
1.48 inches2 WSW Sheridan LakePenningtonCoCoRaHS
1.47 inches3 NNE HarringtonBennettMesonet
1.47 inchesAngostura ResFall RiverOther Federal
1.42 inches9 NNE EdgemontFall RiverMesonet
1.41 inches8 SSE DeerfieldPenningtonMesonet
1.41 inches1 W Silver CityPenningtonOther Federal
1.40 inches2 NNW Hot SpringsFall RiverOther Federal
1.35 inches4 WSW Dwtn Rapid CityPenningtonOther Federal
1.34 inchesMount RushmorePenningtonMesonet
1.33 inches5 E MartinBennettOther Federal
1.31 inches9 SW Angostura ResFall RiverOther Federal
1.31 inchesParmleeToddMesonet
1.31 inches2 ENE Sheridan LakePenningtonMesonet
1.31 inches4 E HisegaPenningtonCoCoRaHS
1.30 inches5 SSW Hill CityPenningtonOther Federal
1.30 inches13 SSW OglalaOglala LakotaOther Federal
1.28 inches3 SSE HisegaPenningtonOther Federal
1.25 inchesJewel CaveCusterMesonet
1.24 inchesEdgemontFall RiverCoCoRaHS
1.23 inches1 NNW HisegaPenningtonCoCoRaHS
1.21 inches2 SSW OralFall RiverMesonet
1.19 inches7 E SturgisMeadeMesonet
1.18 inches11 ESE OelrichsFall RiverMesonet
1.17 inches2 W Black HawkMeadeNWS Employee
1.17 inches5 ENE CusterCusterCoCoRaHS
1.17 inches5 WNW HermosaCusterTrained Spotter
1.15 inches1 W Wind Cave VisitorsCusterMesonet
1.15 inches2 S Pactola ResPenningtonOther Federal
1.15 inches4 S Hill CityPenningtonOther Federal
1.14 inches2 W Deerfield ResPenningtonOther Federal
1.14 inches3 N HaywardPenningtonOther Federal
1.14 inches2 S Pactola ResvPenningtonCoCoRaHS
1.13 inches4 SE NemoLawrenceOther Federal
1.13 inches7 WSW ParmeleeToddOther Federal
1.12 inches1 ESE Mount RushmorePenningtonOther Federal
1.10 inches5 NW Dwtn Rapid CityPenningtonOther Federal
1.10 inches10 W Jewel CaveCusterMesonet
1.10 inches1 ESE Pactola ResvPenningtonCo-Op Observer
1.08 inches4 NNW TilfordMeadeCoCoRaHS
1.06 inches2 NNW Mount RushmorePenningtonOther Federal
1.06 inches7 WSW FairburnCusterCoCoRaHS
1.05 inches2 SW HisegaPenningtonOther Federal
1.05 inches6 NNW Dwtn SpearfishLawrenceMesonet
1.05 inches1 NE HisegaPenningtonCoCoRaHS
1.04 inches1 ENE CusterCusterCoCoRaHS
1.02 inches10 NNW Ellsworth AFBMeadeCoCoRaHS
1.02 inches1 NNE EdgemontFall RiverCo-Op Observer
1.01 inches4 WNW Dwtn Rapid CityPenningtonCoCoRaHS
1.00 inches4 W Rapid CityPenningtonMesonet
1.00 inches5 SE WhitewoodLawrenceOther Federal
1.00 inches2 ENE EdgemontFall RiverCoCoRaHS
0.98 inches10 W Jewel CaveCusterCoCoRaHS
0.97 inches3 WNW Mount RushmorePenningtonOther Federal
0.96 inches5 NE PorcupineOglala LakotaMesonet
0.96 inches6 W HermosaCusterCoCoRaHS
0.95 inches1 NNE EdgemontFall RiverOther Federal
0.95 inches1 SE Dwtn Rapid CityPenningtonMesonet
0.94 inchesNemoLawrenceMesonet
0.94 inches3 NNE Johnson SidingPenningtonCoCoRaHS
0.93 inches5 SSW BrownsvilleLawrenceCoCoRaHS
0.91 inches4 W Dwtn Rapid CityPenningtonCoCoRaHS
0.89 inches4 WNW Cedar ButteMelletteMesonet
0.89 inches4 NNE Johnson SidingPenningtonCoCoRaHS
0.88 inches7 SW Rapid City ArptPenningtonCoCoRaHS
0.87 inches7 W ArdmoreFall RiverMesonet
0.83 inches1 NNE FaithMeadeASOS
0.83 inches2 NE RockervillePenningtonOther Federal
0.83 inchesHermosaCusterCoCoRaHS
0.81 inches1 NE Dwtn Rapid CityPenningtonCoCoRaHS
0.79 inches1 S White RiverMelletteMesonet
0.78 inches1 WNW CaputaPenningtonMesonet
0.78 inches3 SW Hill CityPenningtonOther Federal
0.78 inches1 E Dwtn Rapid CityPenningtonOfficial NWS Obs
0.78 inches6 WSW ProvoFall RiverCoCoRaHS
0.77 inches1 NNW NislandButteMesonet
0.77 inches4 S Dwtn Rapid CityPenningtonNWS Employee
0.77 inches4 NNE SummersetMeadeCoCoRaHS
0.76 inches7 SSW FolsomCusterMesonet
0.76 inches4 SE Dwtn Rapid CityPenningtonCoCoRaHS
0.73 inches2 ESE Dwtn SpearfishLawrenceMesonet
0.73 inches27 WNW Castle RockButteMesonet
0.72 inches14 WNW LodgepolePerkinsMesonet
0.71 inches7 ESE RosebudToddMesonet
0.71 inches1 NNW Dwtn Rapid CityPenningtonOther Federal
0.71 inches2 N White RiverMelletteOther Federal
0.70 inches9 WSW Red ElmZiebachTrained Spotter
0.69 inches1 ESE Camp CrookHardingOther Federal
0.68 inches2 W HamillTrippMesonet
0.68 inches1 N BuffaloHardingASOS
0.68 inches6 W New UnderwoodPenningtonCoCoRaHS
0.67 inchesDeerfield ResPenningtonOther Federal
0.65 inches11 S FolsomCusterOther Federal
0.65 inches2 SSE Dwtn Rapid CityPenningtonCoCoRaHS
0.64 inches8 S SorumPerkinsMesonet
0.64 inchesBisonPerkinsMesonet
0.61 inches11 WNW Belle FourcheButteOther Federal
0.60 inches6 S KadokaJacksonOther Federal
0.59 inchesRapid City ArptPenningtonASOS
0.59 inches4 NNE ColomeTrippMesonet
0.58 inches1 NE WinnerTrippASOS
0.57 inches1 N WewelaTrippOther Federal
0.57 inches6 NE SummersetMeadeCoCoRaHS
0.56 inches1 ESE LadnerHardingMesonet
0.55 inches1 SSW HermosaCusterOther Federal
0.53 inches3 N RedigHardingMesonet
0.52 inches6 W RochfordPenningtonMesonet
0.51 inchesLeadLawrenceCo-Op Observer
0.50 inches5 SW BrownsvilleLawrenceMesonet

Storms this day belongs to

Aurora verdict for South Dakota

The night of September 20 topped out at Kp 1.00, short of the 4 South Dakota needs, so the aurora stayed out of range.

Was there aurora last night in South Dakota?

City climate figures for September 20, 2026

City climate figures for September 20, 2026, South Dakota
CityHighLowRainSnow
Rapid City62°F56°F0.59 inchesn/a
Sioux Falls62°F57°F0.01 inches0.0 inches

A daily climate report from the National Weather Service carries the figures for each city's airport station, and they arrive the following morning.

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.