Rapid City weather live forecast

Today's maximum temperature in Rapid City is expected to be 18°C. Select a day from the live weather forecast for Rapid City, South Dakota, USA for more weather parameters.

Tuesday
22nd Sep
18

12

2

2
Wednesday
23rd Sep
25

15

8

5
Thursday
24th Sep
24

14

11

5
Friday
25th Sep
20

15

6

5
Saturday
26th Sep
24

13

9

6

5-day weather forecast updated at 04:00 on Tuesday 22nd 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 22nd September 2026

Expect mostly cloudy with light rain in Rapid City, South Dakota with a maximum temperature of 18°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 10% chance of some rain and a moderate breeze of 26 kph from the south.

18
°C maximum temperature
12
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
2
UV index (Low)
10
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
26
kph wind from S

Rapid City weather for Wednesday 23rd September 2026

Expect broken clouds in Rapid City, South Dakota with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south.

25
°C maximum temperature
15
°C minimum temperature
broken clouds
8
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
17
kph wind from S

Rapid City weather for Thursday 24th September 2026

Expect scattered clouds in Rapid City, South Dakota with a maximum temperature of 24°C, maximum UV of 5 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the east.

24
°C maximum temperature
14
°C minimum temperature
scattered clouds
11
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
11
kph wind from E

Rapid City weather for Friday 25th September 2026

Expect isolated thunderstorms in Rapid City, South Dakota with a maximum temperature of 20°C, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 32% chance of some rain and a moderate breeze of 22 kph from the south.

20
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
5
UV index (Moderate)
32
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
22
kph wind from S

Rapid City weather for Saturday 26th September 2026

Expect scattered clouds in Rapid City, South Dakota with a maximum temperature of 24°C, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north.