Weather Rapid City, South Dakota, USA. Rapid City Weather Forecasts. 2020-2021 Long Range Weather Forecast for Rapid City, SD . Weather in Rapid City, South Dakota The most pleasant months of the year for Rapid City are June, September and August. 47 ° 29 ° 2. Free Long Range Weather Forecast for Rapid City, South Dakota. Share: Get the Long Range Weather for Your Location ... and early to mid-August. How sunny is it in Rapid City in August? The climate in Rapid City during August can be summarized as warm and reasonably dry. Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). Months with the lowest UV index are January and December (UV index 1). Calendar overview of Months Weather Forecast. South Dakota Interactive Map of Historical Record High and Low Temperatures There are normally 10 hours of bright sunshine each day in Sioux Falls, South Dakota in August - that's 71% of daylight hours. What is the temperature in August in Rapid City? Thank you for reporting this station. Get your telescope: Planets to shine like ‘Christmas star’, AccuWeather 2020 white Christmas watch: Suit up, Santa Claus, Plowing incident leaves man trapped in feet of snow, Dozens of vehicles stuck on snow-covered highway, Podcast: Mischief and mayhem for Christmas week. Get the monthly weather forecast for Rapid City, SD, including daily high/low, historical averages, to help you plan ahead. © 2020 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved. In South Dakota, there are 3 comfortable months with … Weather conditions with updates on temperature, humidity, wind speed, snow, pressure, etc. Rapid City Weather and Climate in August Are you planning a holiday with hopefully nice weather in Rapid City in August 2021? Station Data. Monthly: 1981-2010 normals Here you can find all information about the weather in Rapid City in August: >>Overview: Rapid City Weather and Climate in August 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. The best heated blankets to keep you warm, AccuWeather School: Proving and debunking weather folklore. There are normally 10 hours of bright sunshine each day in Rapid City in August - that's 74% of daylight hours. Rainfall will be near to below normal. Average temperatures for August at cities, towns, parks and lakes throughout South Dakota are listed below in degrees Fahrenheit and Celsius. Named after Rapid Creek, where the settlement developed, it is in western South Dakota, on the Black Hills' eastern slope. Get AccuWeather alerts as they happen with our browser notifications. The most pleasant months of the year for Rapid City are June, September and August. The population was 67,956 as of the 2010 Census.. Africa; North America Rapid City Extended Forecast with high and low temperatures. 24 F Rapid City Regional Airport Station | Report. US Dept of Commerce National Oceanic and Atmospheric Administration National Weather Service Rapid City, SD 300 East Signal Drive Rapid City, SD 57701-3800 The best heated blankets to keep you warm, AccuWeather School: Proving and debunking weather folklore. Last 2 weeks of weather Daytime maximum temperatures average around a comfortable 29°C (84°F), whilst at night 13°C (55°F) is normal. Continents Select a continent. In Rapid City, in August, the average high-temperature is 86.4°F (30.2°C), and the average low-temperature is 56.7°F (13.7°C). 54 ° 21 ° 4. How many days does it rain in August in Rapid City? 57 ° 23 ° 1. Rapid City, SD - Weather forecast from Theweather.com. To see the best color, make sure you go to Spearfish Canyon in the northern hills, up near Lead and Deadwood.We try to come in the fall every year. The temperature in August one place, Rapid City Longitude: -103.057, Latitude: 44.0453 Average weather rapid city south dakota weather in august are. Temperatures usually reach 29°C in Rapid City, South Dakota are June, September and August bright sunshine each in... City, humidity Data are for 8 am and 5 pm daytime maximum temperatures around. 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