South Dakota weather live forecast

Today's maximum temperature in South Dakota is expected to be 31°C. Select a day from the live weather forecast for South Dakota (Sioux Falls), USA for more weather parameters.

Saturday
18th Jul
31

22

13

10
Sunday
19th Jul
32

20

8

9
Monday
20th Jul
35

25

7

9
Tuesday
21st Jul
26

19

11

10
Wednesday
22nd Jul
27

16

11

8

5-day weather forecast updated at 04:01 on Saturday 18th July 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 Saturday 18th July 2026

Expect scattered clouds in South Dakota with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the north-east.

31
°C maximum temperature
22
°C minimum temperature
scattered clouds
13
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from NE

South Dakota weather for Sunday 19th July 2026

Expect scattered clouds in South Dakota with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south.

32
°C maximum temperature
20
°C minimum temperature
scattered clouds
8
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from S

South Dakota weather for Monday 20th July 2026

Expect scattered clouds in South Dakota with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north.

35
°C maximum temperature
25
°C minimum temperature
scattered clouds
7
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
19
kph wind from N

South Dakota weather for Tuesday 21st July 2026

Expect scattered clouds in South Dakota with a maximum temperature of 26°C, maximum UV of 10 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the north.

26
°C maximum temperature
19
°C minimum temperature
scattered clouds
11
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
24
kph wind from N

South Dakota weather for Wednesday 22nd July 2026

Expect scattered clouds in South Dakota with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-west.