Low °F. Get your weekly fix of holiday inspiration from leading travel writers. Aug The tables give the normals for maximum and minimum temperatures based on weather data collected from 1981 to 2010 by the US National Climatic Data Center. On average, it rains or snows a smalll amount: 1 to 2 times per month. The September weather guide for South Dakota shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Weather in September. Daily high temperatures decrease by 13°F, from 74°F to 62°F, rarely falling below 46°F or exceeding 84°F.. Daily low temperatures decrease by 11°F, from 49°F to 39°F, rarely falling below 28°F or exceeding 58°F.. For reference, on July 18, the hottest day of the year, temperatures in Custer typically range from 54°F to … The average low-temperature, in September, is 43.3°F (6.3°C). Brittany Ferries  Cruise Nation  DFDS  English Heritage  Enterprise  Explore! Average Weather in September in Custer South Dakota, United States. Average Temperatures for North Dakota in September. Get the monthly weather forecast for Custer, SD, including daily high/low, historical averages, to help you plan ahead. We will be driving from Salt Lake City area. The most pleasant months of the year for South Dakota are June, September and August. Weather in Spearfish, South Dakota. Feb 70. Time/General; Weather . Get the monthly weather forecast for Spearfish, SD, including daily high/low, historical averages, to help you plan ahead. High °F. There are usually 8 days with some rain in Sioux Falls, South Dakota in September and the average monthly rainfall is 74mm. Copyright © 2020 Current Results Publishing Ltd. Average South Dakota Sunshine in September, Precipitation Averages for South Dakota in September. Select a month to view South Dakota sunrise & sunset times for the next twelve months. First Choice  FloridaTix  Hoseasons  James Villas  Jet2.com  Jet2holidays  Love Holidays  On the Beach  Rail Europe - formerly Loco2  RHS  Saga Holidays  TUI  Virgin Atlantic  VRBO (formerly HomeAway)  More... We help you find the best travel deals for your holiday in the sun by sharing tips on when and where to go, before providing you with top discounts. Parts of Northeast socked by waist-deep snow. The tables give daily averages along with highest and lowest relative humidity levels. ... September: 23: 10: 59: 38: October: 15: 3: 46: 28: November: 8-3: 37: 18: December: 3-8: 59: 37: Year: 15: 3: Days of Hot Weather in Rapid City. Daily low temperatures decrease by 11°F , from 53°F to 42°F , rarely falling below 32°F or exceeding 62°F . ... More on Weather in South Dakota. Weather Rapid City, South Dakota, USA. My husband and I are planning our first trip to South Dakota/Badlands/Mount Rushmore/Crazy Horse etc. You can jump to a separate table for each region of the state: Eastern, Central and Western South Dakota. Mt Rushmore Weather in June-August: If you are contemplating the best time to visit Mt Rushmore, this period fits the bill just right. Nov Jan Free Long Range Weather Forecast for Rapid City, South Dakota. Daily high temperatures decrease by 14°F, from 80°F to 67°F, rarely falling below 50°F or exceeding 92°F.. Daily low temperatures decrease by 11°F, from 55°F to 44°F, rarely falling below 33°F or exceeding 64°F.. For reference, on July 26, the hottest day of the year, temperatures in Sturgis typically range from 61°F to … Rapid City weather forecast – free weather forecast for Rapid City ViaMichelin offers you the weather for Rapid City today and tomorrow, as well as a 10 day weather outlook. The variety of trees in South Dakota become color-changing canvases in the autumn. 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