Rapid City 7-day weather forecast

Written by:
September 8, 2025
ESOlex // Shutterstock

Rapid City 7-day weather forecast

Stacker created the forecast for Rapid City, South Dakota using data from OpenWeather. This week's high is 93 °F on Thursday, while the low is 61 °F on Monday. There is expected to be 1 sunny day and rain on 4 days this week.

There are currently no weather alerts.

Monday, September 8

- High of 88 °F, low of 61 °F (20% humidity)
- Partly cloudy with a 20% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 6:24 AM, sunset at 7:16 PM
1 / 6
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Tuesday, September 9

- High of 84 °F, low of 63 °F (25% humidity)
- Mostly cloudy with a 76% chance of rain (1 mm of rain)
- High risk of harm from sun exposure (5 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 6:25 AM, sunset at 7:14 PM
2 / 6
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Wednesday, September 10

- High of 92 °F, low of 62 °F (39% humidity)
- Mostly cloudy with a 100% chance of rain (3 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (18 mph wind)
- Sunrise at 6:26 AM, sunset at 7:13 PM
3 / 6
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Thursday, September 11

- High of 93 °F, low of 67 °F (31% humidity)
- Overcast with a 0% chance of rain
- High risk of harm from sun exposure (5 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 6:27 AM, sunset at 7:11 PM
4 / 6
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Friday, September 12

- High of 89 °F, low of 68 °F (27% humidity)
- Fair with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 6:29 AM, sunset at 7:09 PM
5 / 6
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Saturday, September 13

- High of 86 °F, low of 67 °F (25% humidity)
- Mostly cloudy with a 87% chance of rain (1 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 6:30 AM, sunset at 7:07 PM
6 / 6
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Sunday, September 14

- High of 84 °F, low of 63 °F (26% humidity)
- Overcast with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 6:31 AM, sunset at 7:05 PM
- Last quarter moon

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