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
20th Oct
20

7

10

4
Wednesday
21st Oct
21

10

9

4
Thursday
22nd Oct
24

11

6

4
Friday
23rd Oct
24

15

4

2
Saturday
24th Oct
20

11

4

1

5-day weather forecast updated at 04:01 on Tuesday 20th October 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 20th October 2026

Expect clear skies in South Dakota with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south.

20
°C maximum temperature
7
°C minimum temperature
clear skies
10
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
22
kph wind from S

South Dakota weather for Wednesday 21st October 2026

Expect scattered clouds in South Dakota with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south.

21
°C maximum temperature
10
°C minimum temperature
scattered clouds
9
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
13
kph wind from S

South Dakota weather for Thursday 22nd October 2026

Expect broken clouds in South Dakota with a maximum temperature of 24°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south-east.

24
°C maximum temperature
11
°C minimum temperature
broken clouds
6
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
24
°C wind chill
20
kph wind from SE

South Dakota weather for Friday 23rd October 2026

Expect sunshine and showers in South Dakota with a maximum temperature of 24°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 21% chance of some rain and a fresh breeze of 35 kph from the south.

24
°C maximum temperature
15
°C minimum temperature
sunshine and showers
4
hours of sunshine
2
UV index (Low)
21
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
35
kph wind from S

South Dakota weather for Saturday 24th October 2026

Expect mostly cloudy with rain in South Dakota with a maximum temperature of 20°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 64% chance of some rain and a fresh breeze of 31 kph from the south.