Sioux Falls weather live forecast

Today's maximum temperature in Sioux Falls is expected to be 68°F. Select a day from the live weather forecast for Sioux Falls, South Dakota, USA for more weather parameters.

Wednesday
16th Sep
68

50

3

3
Thursday
17th Sep
72

61

2

5
Friday
18th Sep
73

61

1

2
Saturday
19th Sep
64

59

0

2
Sunday
20th Sep
63

57

0

2

5-day weather forecast updated at 04:01 on Wednesday 16th 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 16th September 2026

Expect isolated thunderstorms in Sioux Falls, South Dakota with a maximum temperature of 68°F, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 40% chance of some rain and a gentle breeze of 12 mph from the south-east.

68
°F maximum temperature
50
°F minimum temperature
isolated thunderstorms
3
hours of sunshine
3
UV index (Moderate)
40
% chance of some rain
<2
mm of rainfall expected
68
°F wind chill
12
mph wind from SE

Sioux Falls weather for Thursday 17th September 2026

Expect isolated thunderstorms in Sioux Falls, South Dakota with a maximum temperature of 72°F, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 69% chance of some rain and a gentle breeze of 11 mph from the east.

72
°F maximum temperature
61
°F minimum temperature
isolated thunderstorms
2
hours of sunshine
5
UV index (Moderate)
69
% chance of some rain
<2
mm of rainfall expected
72
°F wind chill
11
mph wind from E

Sioux Falls weather for Friday 18th September 2026

Expect isolated thunderstorms in Sioux Falls, South Dakota with a maximum temperature of 73°F, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 20-30 mm of rainfall expected with 73% chance of some rain and a moderate breeze of 14 mph from the south-east.

73
°F maximum temperature
61
°F minimum temperature
isolated thunderstorms
1
hour of sunshine
2
UV index (Low)
73
% chance of some rain
<30
mm of rainfall expected
73
°F wind chill
14
mph wind from SE

Sioux Falls weather for Saturday 19th September 2026

Expect isolated thunderstorms in Sioux Falls, South Dakota with a maximum temperature of 64°F, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 22% chance of some rain and a gentle breeze of 11 mph from the north-east.

64
°F maximum temperature
59
°F minimum temperature
isolated thunderstorms
0
hours of sunshine
2
UV index (Low)
22
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
11
mph wind from NE

Sioux Falls weather for Sunday 20th September 2026

Expect overcast skies in Sioux Falls, South Dakota with a maximum temperature of 63°F, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 10 mph from the north-east.