Sioux Falls weather live forecast

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

Sioux Falls weather forecast by day

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

Sioux Falls weather for Sunday 16th August 2026

Expect scattered clouds in Sioux Falls, 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

Sioux Falls weather for Monday 17th August 2026

Expect isolated thunderstorms in Sioux Falls, 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

Sioux Falls weather for Tuesday 18th August 2026

Expect isolated thunderstorms in Sioux Falls, 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

Sioux Falls weather for Wednesday 19th August 2026

Expect sunshine and showers in Sioux Falls, 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

Sioux Falls weather for Thursday 20th August 2026

Expect mostly cloudy with light rain in Sioux Falls, 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.