FALL. South Dakota, the 17th largest state in the nation, covers so much area that it has several different geographic areas, each with its own weather pattern. It comes as a surprise to many that North Dakota actually has a remarkably long temperate season, including beautiful sunny days in June, when the sun rises before 6 a.m. and sets after 9:30 p.m.Click here for more weather updates.In addition, North Dakota has more than 200 sunny or mostly sunny days per year. I know planning on what the weather will be like can be hard because weather can change at any time. You can jump to a separate table for each region of the state: Eastern , Central and Western South Dakota. See Historical Weather Data for a Location and Date. Africa; North America The most pleasant months of the year for South Dakota are June, September and August. climate-data.org. The weather … July and August are months without snowfall in Lead, South Dakota. August 27-28, 2020. The severe thunderstorms that moved through central and eastern South Dakota during the late evening of the 27th and early morning of the 28th produced numerous wind gusts over 70 mph and caused damage to several outbuildings and trees. We are camping and because of that weather is always a concern. July is the hottest month for South Dakota with an average high temperature of 85.2°, which ranks it as about average compared to other states. A common misconception is that it always is cold in North Dakota. Average Temperatures for South Dakota in September Average temperatures for September at cities, towns, parks and lakes throughout South Dakota are listed below in degrees Fahrenheit and Celsius. Weather forecasts for all towns and cities in South Dakota Because our weather varies from one community to the next, the averages below are from Rapid City unless otherwise noted. Answer 1 of 7: My Fiancé and I are taking an 8 day camping trip in South Dakota. The August weather guide for Keystone, South Dakota shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & … Average Weather in August in Sturgis South Dakota, United States. climate-data.org. Daylight In August, the average length of the day in Lead is 14h. Weather History for Places in South Dakota . Sunshine In Lead, South Dakota, the average sunshine in August is 10h. While towns in South Dakota, North Dakota, Wyoming and Minnesota make the lists for some of the nation's coldest; not one from the Black Hills is included or close to. Year * Month * Day * Data is available up to December 3, 2020. Updated South Dakota weather maps. Fall weather tends to be mild with an average daytime high of 57°F (14°C) and low of 44°F (7°C), although temperatures and precipitation can vary. South Dakota Weather. Visitors make foliage pilgrimages to places like Spearfish Canyon and Sica Hollow State Park to take in the gorgeous transition. UV index In August, the average daily maximum UV index is 8. In South Dakota, there are 3 comfortable months with high temperatures in the range of 70-85°. Continents Select a continent. The variety of trees in South Dakota become color-changing canvases in the autumn.