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.

Wednesday
12th Aug
30

22

6

5
Thursday
13th Aug
25

21

6

4
Friday
14th Aug
23

20

1

3
Saturday
15th Aug
26

20

6

6
Sunday
16th Aug
24

17

8

7

5-day weather forecast updated at 04:01 on Wednesday 12th 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 Wednesday 12th August 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 30°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 49% chance of some rain and a gentle breeze of 16 kph from the east.

30
°C maximum temperature
22
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
5
UV index (Moderate)
49
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from E

South Dakota weather for Thursday 13th August 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 25°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 30% chance of some rain and a gentle breeze of 19 kph from the east.

25
°C maximum temperature
21
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
4
UV index (Moderate)
30
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
19
kph wind from E

South Dakota weather for Friday 14th August 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 23°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 61% chance of some rain and a moderate breeze of 21 kph from the east.

23
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
3
UV index (Moderate)
61
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
21
kph wind from E

South Dakota weather for Saturday 15th August 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 55% chance of some rain and a gentle breeze of 13 kph from the north-west.

26
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
6
UV index (High)
55
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
13
kph wind from NW

South Dakota weather for Sunday 16th August 2026

Expect scattered clouds in South Dakota with a maximum temperature of 24°C, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north.