South Dakota weather live forecast

Today's maximum temperature in South Dakota is expected to be 27°C. Select a day from the live weather forecast for South Dakota (Sioux Falls), USA for more weather parameters.

Thursday
6th Aug
27

15

14

7
Friday
7th Aug
29

17

10

7
Saturday
8th Aug
28

15

10

7
Sunday
9th Aug
31

18

7

7
Monday
10th Aug
30

19

6

7

5-day weather forecast updated at 04:01 on Friday 7th August 2026 GMT

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

Top South Dakota destinations

Below are temperatures expected today at popular countries, regions and places in South Dakota. Select a destination to see the detailed weather forecast for today, tomorrow and the outlook for the next five days.

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South Dakota weather forecast by day

Below are the detailed weather forecasts for South Dakota for the next 5 days. The forecasts shown are for Sioux Falls and may not represent the whole of South Dakota. Browse more destinations in South Dakota to view more weather forecasts.

South Dakota weather for Thursday 6th August 2026

Expect clear skies in South Dakota with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south.

27
°C maximum temperature
15
°C minimum temperature
clear skies
14
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
22
kph wind from S

South Dakota weather for Friday 7th August 2026

Expect scattered clouds in South Dakota with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the north.

29
°C maximum temperature
17
°C minimum temperature
scattered clouds
10
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
21
kph wind from N

South Dakota weather for Saturday 8th August 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 0-2 mm of rainfall expected with 40% chance of some rain and a moderate breeze of 20 kph from the south.

28
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
10
hours of sunshine
7
UV index (High)
40
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
20
kph wind from S

South Dakota weather for Sunday 9th August 2026

Expect broken clouds in South Dakota with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the east.

31
°C maximum temperature
18
°C minimum temperature
broken clouds
7
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
18
kph wind from E

South Dakota weather for Monday 10th August 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 28% chance of some rain and a gentle breeze of 17 kph from the north-east.