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South Dakota weather for September 18, 2026

The day's Local Storm Reports for South Dakota on September 18, 2026 break down this way: 51 reports of rainfall, topping 2.40 inches at 12 ESE Sunshine Bible A.

Previous day: Sep 15

12 ESE Sunshine Bible A (rain): 2.40″12 ESE Sunshine Bible A (rain) 2.40″3 NNE Gann Valley (rain): 2.35″1 SSW Watertown (rain): 2.12″4 N Thomas (rain): 2.00″3 S Watertown Airport (rain): 1.90″1 W Oacoma (rain): 1.89″6 SW Oacoma (rain): 1.83″3 ENE Watertown (rain): 1.66″9 N Wewela (rain): 1.56″6 N Hamill (rain): 1.53″3 W Thomas (rain): 1.41″2 NNW Rauville (rain): 1.40″1 NNW Watertown (rain): 1.40″1 SE Watertown Airport (rain): 1.27″3 ENE Watertown (rain): 1.27″11 SSE Hamill (rain): 1.25″2 SSW Watertown Airport (rain): 1.25″8 WNW Iona (rain): 1.20″4 SSW Tulare (rain): 1.17″3 W Okaton (rain): 1.17″1 WNW Hayti (rain): 1.16″5 NW Brentford (rain): 1.12″3 WNW Kadoka (rain): 1.12″1 W Watertown Airport (rain): 1.11″Castlewood (rain): 1.10″8 ESE Hayes (rain): 1.08″7 E Hayes (rain): 1.05″6 S Revillo (rain): 1.03″5 S Vivian (rain): 1.02″2 N Pierre Regional Air (rain): 1.00″2 NW Strandburg (rain): 1.00″4 SW Kennebec (rain): 1.00″Fort Pierre (rain): 1.00″7 NW Clearfield (rain): 0.99″2 WSW Swett (rain): 0.97″3 WSW Wanblee (rain): 0.96″2 SSE Ideal (rain): 0.96″3 WNW Milesville (rain): 0.73″3 E Wasta (rain): 0.69″5 NW Swett (rain): 0.67″6 NNW Dwtn Spearfish (rain): 0.66″Quinn (rain): 0.62″7 N Wood (rain): 0.62″12 NNW White River (rain): 0.61″12 SSE Milesville (rain): 0.59″2 WNW Dwtn Spearfish (rain): 0.56″1 SE Belle Fourche (rain): 0.54″3 NW Dwtn Spearfish (rain): 0.53″1 S Belle Fourche (rain): 0.53″1 SSE Dwtn Spearfish (rain): 0.51″4 NNW Elm Springs (rain): 0.50″IAMNMTNENDWY
0.60″ 1.20″ 2.40″ Circle size scaleOne spotter report, sized by amount
Circles show spotter reports for South Dakota on September 18, 2026, each sized by amount. County lines mark the area, and the largest values are labeled. 51 reports are plotted.

Rainfall reports for the day

Rainfall reports for the day: South Dakota, September 18, 2026, 51 reports
AmountPlaceCountyReported byTime
2.40 inches12 ESE Sunshine Bible AHandMesonet
2.35 inches3 NNE Gann ValleyBuffaloCO-OP Observer
2.12 inches1 SSW WatertownCodingtonMesonet
2.00 inches4 N ThomasCodingtonCocorahs
1.90 inches3 S Watertown AirportCodingtonCocorahs
1.89 inches1 W OacomaLymanCocorahs
1.83 inches6 SW OacomaLymanCocorahs
1.66 inches3 ENE WatertownCodingtonCO-OP Observer
1.56 inches9 N WewelaTrippCoCoRaHS
1.53 inches6 N HamillTrippCoCoRaHS
1.41 inches3 W ThomasHamlinMesonet
1.40 inches2 NNW RauvilleCodingtonCocorahs
1.40 inches1 NNW WatertownCodingtonCocorahs
1.27 inches1 SE Watertown AirportCodingtonASOS
1.27 inches3 ENE WatertownCodingtonCO-OP Observer
1.25 inches11 SSE HamillTrippCoCoRaHS
1.25 inches2 SSW Watertown AirportCodingtonCocorahs
1.20 inches8 WNW IonaLymanCocorahs
1.17 inches4 SSW TulareSpinkCocorahs
1.17 inches3 W OkatonJonesCocorahs
1.16 inches1 WNW HaytiHamlinCO-OP Observer
1.12 inches5 NW BrentfordSpinkMesonet
1.12 inches3 WNW KadokaJacksonCoCoRaHS
1.11 inches1 W Watertown AirportCodingtonCocorahs
1.10 inchesCastlewoodHamlinCO-OP Observer
1.08 inches8 ESE HayesStanleyCocorahs
1.05 inches7 E HayesStanleyCO-OP Observer
1.03 inches6 S RevilloDeuelMesonet
1.02 inches5 S VivianLymanCocorahs
1.00 inches2 N Pierre Regional AirHughesMesonet
1.00 inches2 NW StrandburgGrantCocorahs
1.00 inches4 SW KennebecLymanCocorahs
1.00 inchesFort PierreStanleyCocorahs
0.99 inches7 NW ClearfieldTrippCoCoRaHS
0.97 inches2 WSW SwettBennettCoCoRaHS
0.96 inches3 WSW WanbleeJacksonCoCoRaHS
0.96 inches2 SSE IdealTrippCoCoRaHS
0.73 inches3 WNW MilesvilleHaakonCoCoRaHS
0.69 inches3 E WastaPenningtonCoCoRaHS
0.67 inches5 NW SwettBennettCoCoRaHS
0.66 inches6 NNW Dwtn SpearfishLawrenceCoCoRaHS
0.62 inchesQuinnPenningtonCoCoRaHS
0.62 inches7 N WoodMelletteCoCoRaHS
0.61 inches12 NNW White RiverMelletteCoCoRaHS
0.59 inches12 SSE MilesvilleHaakonCoCoRaHS
0.56 inches2 WNW Dwtn SpearfishLawrenceCoCoRaHS
0.54 inches1 SE Belle FourcheButteCoCoRaHS
0.53 inches3 NW Dwtn SpearfishLawrenceCoCoRaHS
0.53 inches1 S Belle FourcheButteCoCoRaHS
0.51 inches1 SSE Dwtn SpearfishLawrenceCoCoRaHS
0.50 inches4 NNW Elm SpringsMeadeCoCoRaHS

Storms this day belongs to

Aurora verdict for South Dakota

No Kp reading for the night of September 18 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.