Rapid City 7-day weather forecast

Written by:
June 8, 2026
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Rapid City 7-day weather forecast

created the forecast for Rapid City, South Dakota using data from . This week's high is 103 掳F on Friday, while the low is 56 掳F on Tuesday. There are expected to be 5 sunny days and rain on 1 day this week.

NWS Rapid City SD has issued a red flag warning until Tuesday at 08:00 PM.

Monday, August 3

- High of 89 掳F, low of 61 掳F (25% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Strong breeze (29 mph wind)
- Sunrise at 5:43 AM, sunset at 8:15 PM
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1 / 6
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Tuesday, August 4

- High of 78 掳F, low of 56 掳F (22% humidity)
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 5:44 AM, sunset at 8:13 PM
2 / 6
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Wednesday, August 5

- High of 83 掳F, low of 59 掳F (27% humidity)
- Fair with a 99% chance of rain (1 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 5:45 AM, sunset at 8:12 PM
- Last quarter moon
3 / 6
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Thursday, August 6

- High of 96 掳F, low of 66 掳F (17% humidity)
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 5:46 AM, sunset at 8:11 PM
4 / 6
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Friday, August 7

- High of 103 掳F, low of 70 掳F (13% humidity)
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Moderate breeze (17 mph wind)
- Sunrise at 5:47 AM, sunset at 8:09 PM
5 / 6
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Saturday, August 8

- High of 102 掳F, low of 75 掳F (9% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Strong breeze (26 mph wind)
- Sunrise at 5:48 AM, sunset at 8:08 PM
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6 / 6
Alex Stemmer // Shutterstock

Sunday, August 9

- High of 85 掳F, low of 65 掳F (29% humidity)
- Mostly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 5:49 AM, sunset at 8:07 PM

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