FPUS63 KFSD 180443 SFTSD SDZ001>074-181000- Tabular State Forecast for South Dakota National Weather Service Sioux Falls SD 1143 PM CDT Sun May 17 2026 ROWS INCLUDE... Daily predominant daytime weather 6AM-6PM Forecast temperatures...early morning low/daytime high Probability of precipitation nighttime 6PM-6AM/daytime 6AM-6PM - indicates temperatures below zero MM indicates missing data FCST FCST FCST FCST FCST FCST FCST Mon Tue Wed Thu Fri Sat Sun May 18 May 19 May 20 May 21 May 22 May 23 May 24 ...WESTERN SOUTH DAKOTA... Buffalo Shwrs Ptcldy Sunny Shwrs Ptcldy Ptcldy Sunny 35/46 31/59 34/72 42/65 39/68 41/75 46/83 10/60 40/10 00/00 10/50 50/20 20/10 10/10 Custer Snoshwr Ptcldy Sunny Tstrms Ptcldy Ptcldy Sunny 32/37 24/51 30/60 37/59 36/61 40/69 45/78 60/100 100/00 00/10 10/70 70/40 40/20 20/10 Faith Shwrs Ptcldy Sunny Ptcldy Ptcldy Ptcldy Sunny 34/47 32/58 33/72 41/68 40/68 42/76 47/84 40/90 90/20 00/00 10/40 40/20 20/10 10/10 Philip Shwrs Ptcldy Sunny Ptcldy Ptcldy Ptcldy Sunny 36/48 31/60 33/70 42/72 41/71 43/79 48/89 60/100 100/10 00/10 10/30 40/20 20/10 10/10 Pine Ridge Shwrs Ptcldy Ptcldy Ptcldy Ptcldy Sunny Sunny 34/42 29/59 34/66 40/69 38/70 41/78 47/88 40/100 100/00 00/40 30/40 40/30 30/10 10/00 Rapid City Shwrs Sunny Sunny Shwrs Ptcldy Ptcldy Sunny 37/43 31/60 34/70 42/68 40/70 43/78 48/88 40/100 100/10 10/10 10/50 50/30 30/20 20/10 ...CENTRAL SOUTH DAKOTA... Chamberlain Shwrs Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy 39/52 36/57 33/68 44/71 43/71 46/77 50/85 30/90 80/00 00/10 10/30 30/20 30/30 20/20 Mobridge Shwrs Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy 39/49 34/56 33/70 43/70 41/69 43/75 47/83 20/80 80/10 00/00 00/30 40/30 30/10 10/10 Pierre Shwrs Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy 40/50 35/58 33/70 43/71 42/70 44/77 48/86 20/90 90/00 00/00 00/30 50/40 30/20 20/10 Winner Shwrs Ptcldy Ptcldy Ptcldy Shwrs Ptcldy Ptcldy 38/48 35/57 34/67 44/70 44/70 46/77 51/86 90/90 90/00 00/00 00/30 50/50 40/20 20/10 ...EASTERN SOUTH DAKOTA... Aberdeen Shwrs Ptcldy Sunny Ptcldy Shwrs Ptcldy Ptcldy 41/53 35/54 30/68 42/70 42/68 43/75 46/83 70/80 80/00 00/00 00/20 50/50 40/20 20/20 Huron Shwrs Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy 40/55 37/56 32/68 43/71 43/70 45/76 49/85 40/80 80/10 00/00 00/20 30/30 30/30 20/20 Mitchell Shwrs Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy 42/56 38/57 32/67 43/71 44/71 46/77 50/85 40/90 80/10 00/00 00/20 30/20 30/30 20/20 Sioux Falls Tstrms Mocldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy 47/61 41/57 35/64 43/67 45/69 47/75 52/83 90/80 80/20 00/00 00/10 30/30 30/30 30/20 Sisseton Shwrs Mocldy Sunny Ptcldy Shwrs Ptcldy Ptcldy 42/54 37/51 33/6543/69 44/66 45/72 48/81 90/60 90/00 00/00 00/20 50/50 50/20 20/20 Watertown Shwrs Mocldy Sunny Ptcldy Shwrs Ptcldy Ptcldy 41/54 36/51 32/64 41/66 43/65 44/71 48/80 90/70 90/00 00/00 00/20 40/50 50/30 30/20 Yankton Shwrs Ptcldy Ptcldy Mocldy Ptcldy Ptcldy Ptcldy 45/61 40/58 35/66 43/69 45/72 48/77 52/85 50/80 70/10 00/00 00/10 30/30 40/30 20/20 $$