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.

Friday
22nd May
18

10

4

UV2
Saturday
23rd May
22

8

8

UV7
Sunday
24th May
27

10

11

UV7
Monday
25th May
30

14

12

UV7
Tuesday
26th May
30

16

11

UV7

5-day weather forecast updated at 04:01 on Saturday 23rd May 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 Friday 22nd May 2026

Expect mostly cloudy with rain in Sioux Falls, South Dakota with a maximum temperature of 18°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 100% chance of some rain and a moderate breeze of 26 kph from the south-east.

18
°C maximum temperature
10
°C minimum temperature
mostly cloudy with rain
4
hours of sunshine
UV2
UV index (Low)
100
% chance of some rain
<20
mm of rainfall expected
18
°C wind chill
26
kph wind from SE

Sioux Falls weather for Saturday 23rd May 2026

Expect broken clouds in Sioux Falls, South Dakota with a maximum temperature of 22°C, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the west.

22
°C maximum temperature
8
°C minimum temperature
broken clouds
8
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
15
kph wind from W

Sioux Falls weather for Sunday 24th May 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 11 hours of bright sunshine. There are 0-2 mm of rainfall expected with 44% chance of some rain and a moderate breeze of 21 kph from the south.

27
°C maximum temperature
10
°C minimum temperature
isolated thunderstorms
11
hours of sunshine
UV7
UV index (High)
44
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
21
kph wind from S

Sioux Falls weather for Monday 25th May 2026

Expect isolated thunderstorms in Sioux Falls, South Dakota with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 2-5 mm of rainfall expected with 44% chance of some rain and a gentle breeze of 19 kph from the south.

30
°C maximum temperature
14
°C minimum temperature
isolated thunderstorms
12
hours of sunshine
UV7
UV index (High)
44
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
19
kph wind from S

Sioux Falls weather for Tuesday 26th May 2026

Expect isolated thunderstorms in Sioux Falls, South Dakota with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0-2 mm of rainfall expected with 12% chance of some rain and a moderate breeze of 26 kph from the south.