Sioux Falls weather live forecast

Today's maximum temperature in Sioux Falls is expected to be 26°C. Select a day from the live weather forecast for Sioux Falls, South Dakota, USA for more weather parameters.

Thursday
30th Jul
26

22

2

4
Friday
31st Jul
24

18

7

7
Saturday
1st Aug
26

18

10

8
Sunday
2nd Aug
28

18

14

8
Monday
3rd Aug
28

19

9

8

5-day weather forecast updated at 04:01 on Thursday 30th July 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.

Sioux Falls weather forecast by day

Below are the detailed weather forecasts for Sioux Falls for the next 5 days.

Sioux Falls weather for Thursday 30th July 2026

Expect isolated thunderstorms in Sioux Falls, South Dakota with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 20-30 mm of rainfall expected with 100% chance of some rain and a moderate breeze of 20 kph from the south.

26
°C maximum temperature
22
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
4
UV index (Moderate)
100
% chance of some rain
<30
mm of rainfall expected
L
low heat & humidity
20
kph wind from S

Sioux Falls weather for Friday 31st July 2026

Expect isolated thunderstorms in Sioux Falls, South Dakota with a maximum temperature of 24°C, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 10-20 mm of rainfall expected with 38% chance of some rain and a moderate breeze of 28 kph from the north.

24
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
7
UV index (High)
38
% chance of some rain
<20
mm of rainfall expected
24
°C wind chill
28
kph wind from N

Sioux Falls weather for Saturday 1st August 2026

Expect scattered clouds in Sioux Falls, South Dakota with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north.

26
°C maximum temperature
18
°C minimum temperature
scattered clouds
10
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
10
kph wind from N

Sioux Falls weather for Sunday 2nd August 2026

Expect clear skies in Sioux Falls, South Dakota with a maximum temperature of 28°C, low 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 23 kph from the south.

28
°C maximum temperature
18
°C minimum temperature
clear skies
14
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
23
kph wind from S

Sioux Falls weather for Monday 3rd August 2026

Expect scattered clouds in Sioux Falls, South Dakota with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 29 kph from the south.