❮
Today Hourly 7 days 30 days August
❯

August 2026 Weather | Rapid City, South Dakota

Sat 8/1
Cloudy Weather
Day 90°
Night 63°
55
Sun 8/2
Sunny with a Chance of Thunderstorms
Day 88°
Night 63°
79
Mon 8/3
Cloudy Weather
Day 84°
Night 63°
10
Tue 8/4
Sunny Weather
Day 79°
Night 57°
20
Wed 8/5
Sunny Weather
Day 79°
Night 59°
Thu 8/6
Sunny Weather
Day 81°
Night 63°
Fri 8/7
Sunny Weather
Day 86°
Night 66°
Sat 8/8
Sunny Weather
Day 82°
Night 66°
Sun 8/9
Sunny Weather
Day 90°
Night 64°
Mon 8/10
Sunny Weather
Day 82°
Night 64°
Tue 8/11
Sunny Weather
Day 82°
Night 66°
Wed 8/12
Cloudy Weather
Day 88°
Night 66°
Thu 8/13
Cloudy Weather
Day 88°
Night 66°
Fri 8/14
Cloudy Weather
Day 88°
Night 66°
Sat 8/15
Cloudy Weather
Day 88°
Night 66°
Sun 8/16
Sunny Weather
Day 88°
Night 66°
Mon 8/17
Cloudy Weather
Day 88°
Night 66°
Tue 8/18
Cloudy Weather
Day 88°
Night 64°
Wed 8/19
Cloudy Weather
Day 86°
Night 66°
Thu 8/20
Cloudy Weather
Day 88°
Night 64°
Fri 8/21
Rainy Weather
Day 86°
Night 64°
Sat 8/22
Rainy Weather
Day 79°
Night 64°
Sun 8/23
Rainy Weather
Day 77°
Night 64°
Mon 8/24
Rainy Weather
Day 77°
Night 63°
Tue 8/25
Rainy Weather
Day 75°
Night 64°
Wed 8/26
Cloudy Weather
Day 75°
Night 63°
Thu 8/27
Rainy Weather
Day 79°
Night 57°
Fri 8/28
Cloudy Weather
Day 73°
Night 54°
Sat 8/29
Cloudy Weather
Day 79°
Night 63°
Sun 8/30
Cloudy Weather
Day 79°
Night 63°
Mon 8/31
Rainy Weather
Day 73°
Night 59°

Explore U.S. Weather Trends

❄️ Coldest Cities in the U.S. – Live Temperature Rankings 🔥 Hottest Cities Today – Real-Time Heat Observations ⚠️ Active Weather Alerts – Warnings, Watches & Advisories 🌪️ Windiest Cities – Highest Sustained Wind Speeds 🌫️ Worst Air Quality – Cities with the Highest AQI 🍃 Best Air Quality – Cities with the Lowest AQI