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United States weather

Weather in Sioux City, Iowa for August 2027

Your guide to Sioux City weather in August - trends and predictions

    Rain 🌧️

  • The climate of Sioux City in August is notably wet, with an average of 11 rainy days, and a total of 238.1 mm of precipitation.

    • More

  • Is August a good time to visit Sioux City? check out the best time to travel to Sioux City page.

  • ✨ Is August a good time to visit Sioux City? – Ask the AI Weatherman

Average dry days
20
Dry days
Average rainy days
11
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/17°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Sioux City Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
28°
2
Cloudy
29°
3
Thundery outbreaks possible
29°
4
Light rain
25°
5
Light rain
25°
6
Thundery outbreaks possible
29°
7
Thundery outbreaks possible
31°
8
Thundery outbreaks possible
32°
9
Patchy rain possible
30°
10
Patchy rain possible
30°
11
Light rain
32°
12
Fog
31°
13
Heavy rain
29°
14
Thundery outbreaks possible
28°
15
Patchy light rain with thunder
30°
16
Thundery outbreaks possible
30°
17
Sunny
33°
18
Moderate or heavy rain with thunder
31°
19
Light rain
29°
20
Light rain shower
29°
21
Overcast
30°
22
Thundery outbreaks possible
29°
23
Partly cloudy
26°
24
Heavy rain
26°
25
Partly cloudy
27°
26
Mist
27°
27
Fog
27°
28
Overcast
27°
29
Mist
32°
30
Mist
30°
31
Heavy rain
26°

Temperatures trend during August in Sioux City

See the weather trend as well as the moving average line

August weather in Sioux City day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Overcast
Overcast
 28° /15° 0 mm 8
Aug. 2 Cloudy
Cloudy
 29° /15° 0 mm 8
Aug. 3 Thundery outbreaks possible
Thundery outbreaks possible
 29° /16° 0 mm 8
Aug. 4 Light rain
Light rain
 25° /16° 6.3 mm 5
Aug. 5 Light rain
Light rain
 25° /16° 4.5 mm 8
Aug. 6 Thundery outbreaks possible
Thundery outbreaks possible
 29° /16° 0 mm 9
Aug. 7 Thundery outbreaks possible
Thundery outbreaks possible
 31° /18° 4.9 mm 9
Aug. 8 Thundery outbreaks possible
Thundery outbreaks possible
 32° /17° 0.3 mm 9
Aug. 9 Patchy rain possible
Patchy rain possible
 30° /20° 1.1 mm 8
Aug. 10 Patchy rain possible
Patchy rain possible
 30° /19° 2 mm 8
Aug. 11 Light rain
Light rain
 32° /21° 3.1 mm 8
Aug. 12 Fog
Fog
 31° /18° 0.8 mm 9
Aug. 13 Heavy rain
Heavy rain
 29° /18° 32.6 mm 8
Aug. 14 Thundery outbreaks possible
Thundery outbreaks possible
 28° /20° 11.2 mm 6
Aug. 15 Patchy light rain with thunder
Patchy light rain with thunder
 30° /21° 12.2 mm 5
Aug. 16 Thundery outbreaks possible
Thundery outbreaks possible
 30° /18° 0.6 mm 7
Aug. 17 Sunny
Sunny
 33° /19° 0 mm 9
Aug. 18 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 31° /21° 7.9 mm 5
Aug. 19 Light rain
Light rain
 29° /20° 5.2 mm 5
Aug. 20 Light rain shower
Light rain shower
 29° /17° 1.5 mm 8
Aug. 21 Overcast
Overcast
 30° /19° 0 mm 8
Aug. 22 Thundery outbreaks possible
Thundery outbreaks possible
 29° /17° 13.4 mm 8
Aug. 23 Partly cloudy
Partly cloudy
 26° /14° 0 mm 4
Aug. 24 Heavy rain
Heavy rain
 26° /13° 46.7 mm 4
Aug. 25 Partly cloudy
Partly cloudy
 27° /12° 0 mm 5
Aug. 26 Mist
Mist
 27° /10° 0 mm 7
Aug. 27 Fog
Fog
 27° /12° 0 mm 7
Aug. 28 Overcast
Overcast
 27° /15° 0.3 mm 6
Aug. 29 Mist
Mist
 32° /16° 0 mm 6
Aug. 30 Mist
Mist
 30° /19° 0.3 mm 4
Aug. 31 Heavy rain
Heavy rain
 26° /18° 83.2 mm 4
Next
Important Notice
Our weather forecast for Sioux City in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Sioux City forecast closer to your planned date for the most up-to-date weather information.
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Sioux City in August - FAQ

What are the expected maximum and minimum temperatures in Sioux City during August?
During August, expect a variety of temperatures with highs around 29° and lows near 17°, suitable for diverse activities and preferences.

How much rainfall should be expected in Sioux City during August?
Significant rainfall exceeding 238.1 mm is expected in Sioux City during August, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Sioux City during August?
The average wind speed in Sioux City during August is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Sioux City

Explore the daily rainfall trends and prepare for Sioux Citys August weather 💧
Typically, Sioux City has 11 rainy days in August with a total of 238.1 mm of rainfall.

UV exposure in Sioux City during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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Location coordinates Where is Sioux City?

Get accurate weather forecasts for Sioux City, located at latitude 42.5 and longitude -96.4. Stay updated with localized weather information tailored for Sioux City.

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