Rapid City weather live forecast

Today's maximum temperature in Rapid City is expected to be 23°C. Select a day from the live weather forecast for Rapid City, South Dakota, USA for more weather parameters.

Tuesday
1st Sep
23

18

3

6
Wednesday
2nd Sep
32

17

11

7
Thursday
3rd Sep
33

20

12

7
Friday
4th Sep
35

19

11

8
Saturday
5th Sep
34

21

11

7

5-day weather forecast updated at 04:00 on Tuesday 1st September 2026 GMT

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The 5-day weather forecast for South Dakota (Rapid City) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Rapid City weather forecast by day

Below are the detailed weather forecasts for Rapid City for the next 5 days.

Rapid City weather for Tuesday 1st September 2026

Expect isolated thunderstorms in Rapid City, South Dakota with a maximum temperature of 23°C, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 37% chance of some rain and a gentle breeze of 14 kph from the south-east.

23
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
6
UV index (High)
37
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
14
kph wind from SE

Rapid City weather for Wednesday 2nd September 2026

Expect scattered clouds in Rapid City, South Dakota with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south.

32
°C maximum temperature
17
°C minimum temperature
scattered clouds
11
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
21
kph wind from S

Rapid City weather for Thursday 3rd September 2026

Expect scattered clouds in Rapid City, South Dakota with a maximum temperature of 33°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-west.

33
°C maximum temperature
20
°C minimum temperature
scattered clouds
12
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from SW

Rapid City weather for Friday 4th September 2026

Expect scattered clouds in Rapid City, South Dakota with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the south.

35
°C maximum temperature
19
°C minimum temperature
scattered clouds
11
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
19
kph wind from S

Rapid City weather for Saturday 5th September 2026

Expect scattered clouds in Rapid City, South Dakota with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-east.