South Dakota weather live forecast

Today's maximum temperature in South Dakota is expected to be 30°C. Select a day from the live weather forecast for South Dakota (Sioux Falls), USA for more weather parameters.

Friday
28th Aug
30

16

9

6
Saturday
29th Aug
32

20

10

7
Sunday
30th Aug
33

22

8

7
Monday
31st Aug
30

20

8

5
Tuesday
1st Sep
30

17

8

7

5-day weather forecast updated at 04:01 on Friday 28th 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 Friday 28th August 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 55% chance of some rain and a moderate breeze of 27 kph from the south.

30
°C maximum temperature
16
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
6
UV index (High)
55
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
27
kph wind from S

South Dakota weather for Saturday 29th August 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 5-10 mm of rainfall expected with 21% chance of some rain and a moderate breeze of 25 kph from the south.

32
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
10
hours of sunshine
7
UV index (High)
21
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
25
kph wind from S

South Dakota weather for Sunday 30th August 2026

Expect scattered clouds in South Dakota with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south.

33
°C maximum temperature
22
°C minimum temperature
scattered clouds
8
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
H
high heat & humidity
18
kph wind from S

South Dakota weather for Monday 31st August 2026

Expect scattered clouds in South Dakota with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the north.

30
°C maximum temperature
20
°C minimum temperature
scattered clouds
8
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
M
moderate heat & humidity
21
kph wind from N

South Dakota weather for Tuesday 1st September 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 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 53% chance of some rain and a gentle breeze of 13 kph from the east.