Sioux Falls weather live forecast

Today's maximum temperature in Sioux Falls is expected to be 32°C. Select a day from the live weather forecast for Sioux Falls, South Dakota, USA for more weather parameters.

Wednesday
2nd Sep
32

20

9

8
Thursday
3rd Sep
34

22

9

7
Friday
4th Sep
36

23

9

7
Saturday
5th Sep
35

22

10

7
Sunday
6th Sep
32

22

6

7

5-day weather forecast updated at 04:01 on Wednesday 2nd September 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 Wednesday 2nd September 2026

Expect isolated thunderstorms in Sioux Falls, South Dakota with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 22% chance of some rain and a gentle breeze of 13 kph from the east.

32
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
8
UV index (Very High)
22
% chance of some rain
<5
mm of rainfall expected
H
high heat & humidity
13
kph wind from E

Sioux Falls weather for Thursday 3rd September 2026

Expect isolated thunderstorms in Sioux Falls, South Dakota with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 15% chance of some rain and a gentle breeze of 19 kph from the south.

34
°C maximum temperature
22
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
7
UV index (High)
15
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
19
kph wind from S

Sioux Falls weather for Friday 4th September 2026

Expect scattered clouds in Sioux Falls, South Dakota with a maximum temperature of 36°C, high levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the south.

36
°C maximum temperature
23
°C minimum temperature
scattered clouds
9
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
H
high heat & humidity
19
kph wind from S

Sioux Falls weather for Saturday 5th September 2026

Expect sunshine and showers in Sioux Falls, South Dakota with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 0-2 mm of rainfall expected with 29% chance of some rain and a moderate breeze of 21 kph from the south.

35
°C maximum temperature
22
°C minimum temperature
sunshine and showers
10
hours of sunshine
7
UV index (High)
29
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
21
kph wind from S

Sioux Falls weather for Sunday 6th September 2026

Expect sunshine and showers in Sioux Falls, South Dakota with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 49% chance of some rain and a gentle breeze of 14 kph from the south-east.