South Dakota weather live forecast

Today's maximum temperature in South Dakota is expected to be 28°C. Select a day from the live weather forecast for South Dakota (Sioux Falls), USA for more weather parameters.

Sunday
9th Aug
28

20

6

6
Monday
10th Aug
28

20

6

6
Tuesday
11th Aug
29

21

6

6
Wednesday
12th Aug
28

21

7

4
Thursday
13th Aug
25

19

3

6

5-day weather forecast updated at 04:01 on Sunday 9th August 2026 GMT

More about South Dakota

South Dakota by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for South Dakota

Intrepid Travel discount code: £200 off small group tours

Discount Code

Save EXTRA £200 on select small group tours worldwide
Min spend of £1,500 per person. T&Cs apply
Travel before 30th June 2027 (inclusive)

Show discount code

******011

Redeem Intrepid Travel discount code >>

Expires at 23:59 on Monday 31st Aug 2026 · View all Intrepid Travel offers

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.

All South Dakota destinations

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 9th August 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a gentle breeze of 15 kph from the north-east.

28
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
6
UV index (High)
25
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
15
kph wind from NE

South Dakota weather for Monday 10th August 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 16% chance of some rain and a gentle breeze of 16 kph from the east.

28
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
6
UV index (High)
16
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
16
kph wind from E

South Dakota weather for Tuesday 11th August 2026

Expect isolated thunderstorms in South Dakota with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 32% chance of some rain and a gentle breeze of 15 kph from the north-east.

29
°C maximum temperature
21
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
6
UV index (High)
32
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
15
kph wind from NE

South Dakota weather for Wednesday 12th August 2026

Expect broken clouds in South Dakota with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north-east.

28
°C maximum temperature
21
°C minimum temperature
broken clouds
7
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
L
low heat & humidity
13
kph wind from NE

South Dakota weather for Thursday 13th August 2026

Expect mostly cloudy with light rain in South Dakota with a maximum temperature of 25°C, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 24% chance of some rain and a gentle breeze of 17 kph from the east.