Sioux Falls weather live forecast

Today's maximum temperature in Sioux Falls is expected to be 18°C. Select a day from the live weather forecast for Sioux Falls, South Dakota, USA for more weather parameters.

Saturday
19th Sep
18

14

0

2
Sunday
20th Sep
18

14

1

5
Monday
21st Sep
17

11

0

4
Tuesday
22nd Sep
18

10

1

3
Wednesday
23rd Sep
19

8

6

5

5-day weather forecast updated at 04:01 on Saturday 19th 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 Saturday 19th September 2026

Expect overcast skies in Sioux Falls, South Dakota with a maximum temperature of 18°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north.

18
°C maximum temperature
14
°C minimum temperature
overcast skies
0
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
19
kph wind from N

Sioux Falls weather for Sunday 20th September 2026

Expect overcast skies in Sioux Falls, South Dakota with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the north-east.

18
°C maximum temperature
14
°C minimum temperature
overcast skies
1
hour of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
22
kph wind from NE

Sioux Falls weather for Monday 21st September 2026

Expect overcast skies in Sioux Falls, South Dakota with a maximum temperature of 17°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the east.

17
°C maximum temperature
11
°C minimum temperature
overcast skies
0
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
17
°C wind chill
16
kph wind from E

Sioux Falls weather for Tuesday 22nd September 2026

Expect broken clouds in Sioux Falls, South Dakota with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-east.

18
°C maximum temperature
10
°C minimum temperature
broken clouds
1
hour of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
18
°C wind chill
16
kph wind from SE

Sioux Falls weather for Wednesday 23rd September 2026

Expect broken clouds in Sioux Falls, South Dakota with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south-east.