Sioux Falls Weather Conditions

Current Temperature Level

sunny
20°C
29°C7°C
Cool

Sunny

Feels Like 16°C

Chances of Rain6%

Good

36AQI

Humidity

69%

Nowsunny20°6%10 AMsunny24°3%11 AMsunny29°1%12 PMpartly cloudy28°3%1 PMpartly cloudy29°2%2 PMcloudy28°7%3 PMovercast7°27%4 PMovercast7°29%5 PMovercast7°29%6 PMovercast7°29%7 PMovercast7°29%8 PMovercast7°29%9 PMovercast7°29%10 PMpatchy rain possible7°29%11 PMpatchy rain possible7°34%12 AMpatchy rain possible7°31%1 AMpatchy rain possible7°31%2 AMovercast7°25%3 AMpatchy rain possible7°26%4 AMovercast7°23%5 AMovercast7°22%6 AMovercast7°22%7 AMpatchy rain possible7°23%8 AMovercast7°21%
.

It is likely to be sunny; sun protection may help.

Last Updated: 2026-08-17 09:30 (Local Time)

Sioux Falls Weather Parameters

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Sioux Falls 10-Days Weather Forecast

See Monthly
Today17 Aug.


Sunny

Sunny

Clear Sky with temperature at 15 °C and humidity will be at 76% with 66.6 km/h winds.


temperature icon

29°C  /  7°C

temperature iconHumi.76 %
temperature iconPrec.0.06 mm


Sunrise icon

Sunrise

06:34 AM

13hrs 53min

Sunset icon

Sunset

08:27 PM
Temperature (°C)
.
12 AMTime11 PM

Time

Condition

Temperature IconTemp

Humidity IconHumidity

UV IconUV

Wind IconWind Speed & Dir.

12 AM

ClearClear

18 °C

79 %

0

66.6 kmph /  NNW

Feels Like IconFeels 6 °C

Temperature IconCover 0 %

Visibility IconVisibility 7 km

1 AM

OvercastOvercast

17 °C

81 %

0

66.6 kmph /  NNW

Feels Like IconFeels 5 °C

Temperature IconCover 100 %

Visibility IconVisibility 9 km

2 AM

Partly CloudyPartly Cloudy

16 °C

85 %

0

58.7 kmph /  NW

Feels Like IconFeels 6 °C

Temperature IconCover 40 %

Visibility IconVisibility 9 km

3 AM

ClearClear

16 °C

85 %

0

51.5 kmph /  NW

Feels Like IconFeels 7 °C

Temperature IconCover 24 %

Visibility IconVisibility 7 km

4 AM

OvercastOvercast

15 °C

82 %

0

42.8 kmph /  NW

Feels Like IconFeels 8 °C

Temperature IconCover 100 %

Visibility IconVisibility 9 km

5 AM

ClearClear

15 °C

84 %

0

30.2 kmph /  NW

Feels Like IconFeels 10 °C

Temperature IconCover 2 %

Visibility IconVisibility 2 km

6 AM

ClearClear

15 °C

81 %

0

30.2 kmph /  WNW

Feels Like IconFeels 9 °C

Temperature IconCover 1 %

Visibility IconVisibility 10 km

7 AM

SunnySunny

15 °C

81 %

0

33.1 kmph /  W

Feels Like IconFeels 9 °C

Temperature IconCover 7 %

Visibility IconVisibility 9 km

8 AM

SunnySunny

17 °C

82 %

0.5

30.6 kmph /  W

Feels Like IconFeels 12 °C

Temperature IconCover 3 %

Visibility IconVisibility 10 km

9 AM

SunnySunny

20 °C

69 %

1.4

25.2 kmph /  W

Feels Like IconFeels 16 °C

Temperature IconCover 8 %

Visibility IconVisibility 10 km

10 AM

SunnySunny

24 °C

56 %

3

24.8 kmph /  W

Feels Like IconFeels 20 °C

Temperature IconCover 0 %

Visibility IconVisibility 10 km

11 AM

SunnySunny

29 °C

45 %

4.9

21.6 kmph /  WNW

Feels Like IconFeels 29 °C

Temperature IconCover 2 %

Visibility IconVisibility 10 km

12 PM

Partly CloudyPartly Cloudy

28 °C

41 %

6.6

18.7 kmph /  WNW

Feels Like IconFeels 28 °C

Temperature IconCover 36 %

Visibility IconVisibility 10 km

1 PM

Partly CloudyPartly Cloudy

29 °C

41 %

7.6

22.3 kmph /  NW

Feels Like IconFeels 29 °C

Temperature IconCover 27 %

Visibility IconVisibility 10 km

2 PM

CloudyCloudy

28 °C

46 %

7.4

20.9 kmph /  WNW

Feels Like IconFeels 28 °C

Temperature IconCover 77 %

Visibility IconVisibility 10 km

3 PM

OvercastOvercast

7 °C

86 %

6

24.8 kmph /  NW

Feels Like IconFeels 4 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

4 PM

OvercastOvercast

7 °C

88 %

4

22 kmph /  WNW

Feels Like IconFeels 4 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

5 PM

OvercastOvercast

7 °C

89 %

1.8

20.2 kmph /  WNW

Feels Like IconFeels 4 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

6 PM

OvercastOvercast

7 °C

88 %

1.1

19.8 kmph /  NW

Feels Like IconFeels 4 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

7 PM

OvercastOvercast

7 °C

88 %

0.1

15.8 kmph /  WNW

Feels Like IconFeels 4 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

8 PM

OvercastOvercast

7 °C

88 %

0

13.3 kmph /  WNW

Feels Like IconFeels 5 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

9 PM

OvercastOvercast

7 °C

88 %

0

15.5 kmph /  WNW

Feels Like IconFeels 4 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

10 PM

Patchy rain nearbyPatchy rain nearby

7 °C

88 %

0

13.7 kmph /  WNW

Feels Like IconFeels 5 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

11 PM

Patchy rain nearbyPatchy rain nearby

7 °C

88 %

0

9.7 kmph /  WSW

Feels Like IconFeels 5 °C

Temperature IconCover 100 %

Visibility IconVisibility 10 km

Temp20 °C


ConditionSunny


Humidity69 %

Feels16 °C


Cover8 %


Visibility10 km

Wind Speed & Dir.25.2 kmph /  W


UV1.4

Sioux Falls 30-Days (August 2026) Weather Forecast

See Hourly
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny33°14°
2
Sunny35°14°
3
Sunny36°19°
4
Sunny25°15°
5
Sunny30°10°
6
Sunny30°12°
7
Sunny30°18°
8
Sunny32°10°
9
Sunny32°19°
10
Sunny34°19°
11
Sunny34°22°
12
Sunny35°22°
13
Sunny26°19°
14
Sunny25°19°
15
Overcast27°21°
16
Sunny31°17°
17Today
Sunny29°7°
18
Patchy rain nearby7°5°
19
Patchy rain nearby6°5°
20
Patchy rain nearby7°6°
21
Patchy rain nearby8°6°
22
Patchy rain nearby9°8°
23
Patchy rain nearby9°7°
24
Patchy rain nearby11°7°
25
Rain Showers27°16°
26
Rain Showers28°16°
27
Rain Showers28°16°
28
Rain Showers28°16°
29
Rain27°15°
30
Rain Showers27°16°
31
Rain Showers27°16°

AugustWeather Overview

No. of days:

Sunny

Sunny

16

Cloudy

Cloudy

0

Rainy

Rainy

14

Snowy

Snowy

0


The monthly weather averages in Sioux Falls consist of 16 sunny days, 0 cloudy days, 14 rainy days, and 0 snowy days.

Sioux Falls's Locations Weather Conditions


Locations
Temp
Condition
Humi.
UV
Wind Speed & Direction
20 °C
sunnySunny
69%
1.4

25.2 kmph /  W

20 °C
sunnySunny
71%
1.4

25.2 kmph /  W

United States's Hottest Cities - August 2026

Hottest
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Last Updated: 17 Aug 2026, 03:01 PM

City Weather Rankings

FAQs About Sioux Falls Weather Conditions


1. What is the current temperature in Sioux Falls today - 17 August 2026?

The current temperature in Sioux Falls is 20°C, with a feels-like temperature of 16°C. Today's forecast shows a high of 29°C and a low of 7°C, giving a 22 degree swing through the day as of 09:30 AM 17 August 2026.

2. What are the current weather parameters in Sioux Falls today?

Here is a complete overview of Sioux Falls's current weather conditions as of 09:30 AM 17 August 2026: Condition : Sunny Temperature : 20°C Cool (Feels like 16°C) Humidity : 69% Wind Speed : 25.2 km/h from W (269 degrees), Gust 10.1 m/s UV Index : 1.4 (Low Air Pressure : 1010 mb Cloud Cover : 8% Visibility : 10 km Precipitation : 0 mm (17% chance of rain)

3. What is the 10-day weather forecast for Sioux Falls from 09:30 AM 17 August 2026?

From 09:30 AM 17 August 2026, Sioux Falls's 10-day forecast shows this trend: Today (Aug. 17) : Temp. 15°C, Hum. 76% and Sunny condition. Tuesday (Aug. 18) : Temp. 6°C, Hum. 83% and Patchy rain nearby condition. Wednesday (Aug. 19) : Temp. 6°C, Hum. 79% and Patchy rain nearby condition. Thursday (Aug. 20) : Temp. 6°C, Hum. 75% and Patchy rain nearby condition. Friday (Aug. 21) : Temp. 8°C, Hum. 92% and Patchy rain nearby condition. Saturday (Aug. 22) : Temp. 8°C, Hum. 95% and Patchy rain nearby condition. Sunday (Aug. 23) : Temp. 8°C, Hum. 95% and Patchy rain nearby condition. Monday (Aug. 24) : Temp. 8°C, Hum. 84% and Patchy rain nearby condition. Tuesday (Aug. 25) : Temp. 21°C, Hum. 66% and Rain Showers condition. Wednesday (Aug. 26) : Temp. 22°C, Hum. 64% and Rain Showers condition.

4. Will it rain in Sioux Falls today?

As of 09:30 AM 17 August 2026, there is a 3% chance of rainfall in Sioux Falls later today around 2026-08-17 10:00. Current precipitation is 0 mm. Residents are advised to carry an umbrella before heading out.

5. What is the monthly weather forecast for Sioux Falls in August 2026?

August 2026 in Sioux Falls is forecast to have 16 sunny days, 14 rainy days, 0 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 5°C to highs of 36°C.

6. How does the weather in Sioux Falls affect air quality?

Weather directly impacts air quality in Sioux Falls. Calm winds, high humidity, fog, and high pressure trap pollutants near the ground, worsening AQI. Strong winds, rainfall, and low pressure help disperse them. Rising temperatures and UV levels intensify ozone and smog formation, while poor visibility signals elevated particulate matter. Monitoring weather alongside AQI gives the clearest picture of outdoor safety.