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Today Hourly 7 days 30 days September
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September 2026 Weather | Rapid City, South Dakota

Tue 9/1
Cloudy Weather
Day 84°
Night 64°
Wed 9/2
Cloudy Weather
Day 84°
Night 63°
Thu 9/3
Cloudy Weather
Day 84°
Night 63°
Fri 9/4
Cloudy Weather
Day 86°
Night 63°
Sat 9/5
Cloudy Weather
Day 84°
Night 63°
Sun 9/6
Cloudy Weather
Day 84°
Night 63°
Mon 9/7
Cloudy Weather
Day 84°
Night 63°
Tue 9/8
Cloudy Weather
Day 84°
Night 63°
Wed 9/9
Sunny Weather
Day 82°
Night 61°
Thu 9/10
Sunny Weather
Day 82°
Night 63°
Fri 9/11
Cloudy Weather
Day 82°
Night 63°
Sat 9/12
Cloudy Weather
Day 82°
Night 61°
Sun 9/13
Cloudy Weather
Day 81°
Night 61°
Mon 9/14
Cloudy Weather
Day 81°
Night 61°
Tue 9/15
Sunny Weather
Day 81°
Night 59°
55
Wed 9/16
Sunny Weather
Day 81°
Night 59°
Thu 9/17
Sunny Weather
Day 79°
Night 57°
92
Fri 9/18
Sunny Weather
Day 81°
Night 59°
80
Sat 9/19
Cloudy Weather
Day 81°
Night 57°
Sun 9/20
Sunny Weather
Day 81°
Night 59°
3
Mon 9/21
Cloudy Weather
Day 79°
Night 57°
3
Tue 9/22
Cloudy Weather
Day 79°
Night 57°
55
Wed 9/23
Cloudy Weather
Day 77°
Night 57°
25
Thu 9/24
Cloudy Weather
Day 79°
Night 55°
0
Fri 9/25
Rainy Weather
Day 75°
Night 39°
1
Sat 9/26
Cloudy Weather
Day 61°
Night 39°
25
Sun 9/27
Cloudy Weather
Day 63°
Night 43°
0
Mon 9/28
Rainy Weather
Day 61°
Night 48°
Tue 9/29
Cloudy Weather
Day 72°
Night 39°
Wed 9/30
Cloudy Weather
Day 61°
Night 41°

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