South Dakota weather live forecast

Today's maximum temperature in South Dakota is expected to be 20°C. Select a day from the live weather forecast for South Dakota (Sioux Falls), USA for more weather parameters.

Tuesday
29th Sep
20

18

1

2
Wednesday
30th Sep
21

17

3

4
Thursday
1st Oct
17

10

10

5
Friday
2nd Oct
16

9

7

5
Saturday
3rd Oct
18

8

2

2

5-day weather forecast updated at 04:01 on Tuesday 29th 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 29th September 2026

Expect mostly cloudy with rain in South Dakota with a maximum temperature of 20°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 100% chance of some rain and a moderate breeze of 22 kph from the south.

20
°C maximum temperature
18
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
2
UV index (Low)
100
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
22
kph wind from S

South Dakota weather for Wednesday 30th September 2026

Expect broken clouds in South Dakota with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north-east.

21
°C maximum temperature
17
°C minimum temperature
broken clouds
3
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
11
kph wind from NE

South Dakota weather for Thursday 1st October 2026

Expect scattered clouds in South Dakota with a maximum temperature of 17°C, maximum UV of 5 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the north.

17
°C maximum temperature
10
°C minimum temperature
scattered clouds
10
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
22
kph wind from N

South Dakota weather for Friday 2nd October 2026

Expect scattered clouds in South Dakota with a maximum temperature of 16°C, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-east.

16
°C maximum temperature
9
°C minimum temperature
scattered clouds
7
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
14
kph wind from SE

South Dakota weather for Saturday 3rd October 2026

Expect broken clouds in South Dakota with a maximum temperature of 18°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south.