South Dakota weather live forecast

Today's maximum temperature in South Dakota is expected to be 32°C. Select a day from the live weather forecast for South Dakota (Sioux Falls), USA for more weather parameters.

Tuesday
1st Sep
32

18

6

5
Wednesday
2nd Sep
32

20

9

8
Thursday
3rd Sep
34

22

9

7
Friday
4th Sep
36

23

9

7
Saturday
5th Sep
35

22

10

7

5-day weather forecast updated at 04:01 on Wednesday 2nd September 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 Tuesday 1st September 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 86% chance of some rain and a gentle breeze of 17 kph from the east.

32
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
5
UV index (Moderate)
86
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from E

South Dakota weather for Wednesday 2nd September 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 22% chance of some rain and a gentle breeze of 13 kph from the east.

32
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
8
UV index (Very High)
22
% chance of some rain
<5
mm of rainfall expected
H
high heat & humidity
13
kph wind from E

South Dakota weather for Thursday 3rd September 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 15% chance of some rain and a gentle breeze of 19 kph from the south.

34
°C maximum temperature
22
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
7
UV index (High)
15
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
19
kph wind from S

South Dakota weather for Friday 4th September 2026

Expect scattered clouds in South Dakota with a maximum temperature of 36°C, high levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the south.

36
°C maximum temperature
23
°C minimum temperature
scattered clouds
9
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
H
high heat & humidity
19
kph wind from S

South Dakota weather for Saturday 5th September 2026

Expect sunshine and showers in South Dakota with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 0-2 mm of rainfall expected with 29% chance of some rain and a moderate breeze of 21 kph from the south.