South Dakota weather live forecast

Today's maximum temperature in South Dakota is expected to be 27°C. Select a day from the live weather forecast for South Dakota (Sioux Falls), USA for more weather parameters.

Sunday
16th Aug
27

18

10

6
Monday
17th Aug
27

16

5

7
Tuesday
18th Aug
25

18

4

6
Wednesday
19th Aug
25

16

10

6
Thursday
20th Aug
26

16

5

6

5-day weather forecast updated at 04:01 on Sunday 16th 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 Sunday 16th August 2026

Expect scattered clouds in South Dakota with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north.

27
°C maximum temperature
18
°C minimum temperature
scattered clouds
10
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
18
kph wind from N

South Dakota weather for Monday 17th August 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 54% chance of some rain and a moderate breeze of 22 kph from the south-west.

27
°C maximum temperature
16
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
7
UV index (High)
54
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
22
kph wind from SW

South Dakota weather for Tuesday 18th August 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 25°C, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 78% chance of some rain and a light breeze of 12 kph from the east.

25
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
6
UV index (High)
78
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
12
kph wind from E

South Dakota weather for Wednesday 19th August 2026

Expect sunshine and showers in South Dakota with a maximum temperature of 25°C, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0-2 mm of rainfall expected with 34% chance of some rain and a light breeze of 10 kph from the south.

25
°C maximum temperature
16
°C minimum temperature
sunshine and showers
10
hours of sunshine
6
UV index (High)
34
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
10
kph wind from S

South Dakota weather for Thursday 20th August 2026

Expect mostly cloudy with light rain in South Dakota with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 49% chance of some rain and a gentle breeze of 15 kph from the south.