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 84 °F on Sunday, while the low is 52 °F on Saturday. There are expected to be 3 sunny days and rain on 6 days this week.

There are currently no weather alerts.

Monday, September 15

- High of 81 °F, low of 58 °F (16% humidity)
- Sunny with a 25% chance of rain (0 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 6:32 AM, sunset at 7:03 PM
1 / 6
Stepan Bessmelnitsin // Shutterstock

Tuesday, September 16

- High of 76 °F, low of 58 °F (44% humidity)
- Partly cloudy with a 80% chance of rain (1 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 6:33 AM, sunset at 7:01 PM
2 / 6
Alex Linch // Shutterstock

Wednesday, September 17

- High of 69 °F, low of 58 °F (59% humidity)
- Overcast with a 100% chance of rain (16 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 6:34 AM, sunset at 7:00 PM
3 / 6
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Thursday, September 18

- High of 62 °F, low of 55 °F (75% humidity)
- Overcast with a 100% chance of rain (3 mm of rain)
- High risk of harm from sun exposure (5 UV index)
- Moderate breeze (17 mph wind)
- Sunrise at 6:35 AM, sunset at 6:58 PM
4 / 6
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Friday, September 19

- High of 64 °F, low of 55 °F (74% humidity)
- Overcast with a 100% chance of rain (3 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 6:36 AM, sunset at 6:56 PM
5 / 6
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Saturday, September 20

- High of 73 °F, low of 52 °F (57% humidity)
- Mostly sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 6:38 AM, sunset at 6:54 PM
6 / 6
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Sunday, September 21

- High of 84 °F, low of 58 °F (24% humidity)
- Sunny with a 50% chance of rain (0 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 6:39 AM, sunset at 6:52 PM
- New moon

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