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.

Monday
25th May
30

12

12

UV8
Tuesday
26th May
31

18

14

UV8
Wednesday
27th May
30

16

13

UV8
Thursday
28th May
30

17

11

UV7
Friday
29th May
26

18

3

UV2

5-day weather forecast updated at 04:01 on Monday 25th May 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 Monday 25th May 2026

Expect scattered clouds in South Dakota with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south.

30
°C maximum temperature
12
°C minimum temperature
scattered clouds
12
hours of sunshine
UV8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
18
kph wind from S

South Dakota weather for Tuesday 26th May 2026

Expect scattered clouds in South Dakota with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the south.

31
°C maximum temperature
18
°C minimum temperature
scattered clouds
14
hours of sunshine
UV8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
24
kph wind from S

South Dakota weather for Wednesday 27th May 2026

Expect clear skies in South Dakota with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south-east.

30
°C maximum temperature
16
°C minimum temperature
clear skies
13
hours of sunshine
UV8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
18
kph wind from SE

South Dakota weather for Thursday 28th May 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 11 hours of bright sunshine. There are 0-2 mm of rainfall expected with 28% chance of some rain and a moderate breeze of 23 kph from the south-east.

30
°C maximum temperature
17
°C minimum temperature
isolated thunderstorms
11
hours of sunshine
UV7
UV index (High)
28
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
23
kph wind from SE

South Dakota weather for Friday 29th May 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 26°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 47% chance of some rain and a moderate breeze of 21 kph from the south-east.