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Sioux City (IA)
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United States weather

Weather in Sioux City, Iowa for April 2026

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

    Temperatures

  • In general, the average temperature in Sioux City at the beginning of April is 11.3 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 18 °F by the end of April.

    • Rain 🌧️

  • The climate of Sioux City in April is notably wet, with an average of 13 rainy days, and a total of 71 mm of precipitation.

    • More

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Average dry days
17
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/5°
Temperatures
Average wind speed
26 km/h
Avg max wind
Average humidity
66 %
Avg humidity

Sioux City Weather April

Move between months or click on a day
March
May
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Heavy rain at times
10°
2
Moderate or heavy rain shower
12°
3
Overcast
12°
4
Overcast
13°
5
Sunny
9°
6
Sunny
15°
7
Sunny
8°
8
Overcast
12°
9
Overcast
19°
10
Patchy rain possible
18°
11
Partly cloudy
16°
12
Overcast
24°
13
Overcast
23°
14
Patchy rain possible
13°
15
Sunny
17°
16
Sunny
25°
17
Moderate rain at times
26°
18
Overcast
11°
19
Sunny
13°
20
Patchy rain possible
10°
21
Sunny
22°
22
Overcast
23°
23
Overcast
24°
24
Heavy rain at times
16°
25
Overcast
15°
26
Overcast
16°
27
Patchy rain possible
17°
28
Patchy rain possible
28°
29
Overcast
19°
30
Thundery outbreaks possible
15°

Temperatures trend during April in Sioux City

See the weather trend as well as the moving average line

April weather in Sioux City day by day

Click on a date for more information
March May
Date Weather Temperatures Rain UV More
Apr. 1 Heavy rain at times
Heavy rain at times
 10° /3° 8.4 mm 3
Apr. 2 Moderate or heavy rain shower
Moderate or heavy rain shower
 12° /3° 24.6 mm 3
Apr. 3 Overcast
Overcast
 12° /1° 0 mm 3
Apr. 4 Overcast
Overcast
 13° /4° 0.6 mm 3
Apr. 5 Sunny
Sunny
 9° /-1° 0.5 mm 3
Apr. 6 Sunny
Sunny
 15° /-1° 0 mm 5
Apr. 7 Sunny
Sunny
 8° /0° 0 mm 3
Apr. 8 Overcast
Overcast
 12° /-1° 0 mm 3
Apr. 9 Overcast
Overcast
 19° /2° 0 mm 4
Apr. 10 Patchy rain possible
Patchy rain possible
 18° /5° 0.1 mm 4
Apr. 11 Partly cloudy
Partly cloudy
 16° /1° 0 mm 5
Apr. 12 Overcast
Overcast
 24° /6° 0 mm 5
Apr. 13 Overcast
Overcast
 23° /12° 0 mm 5
Apr. 14 Patchy rain possible
Patchy rain possible
 13° /6° 0.2 mm 3
Apr. 15 Sunny
Sunny
 17° /2° 0 mm 5
Apr. 16 Sunny
Sunny
 25° /4° 0 mm 7
Apr. 17 Moderate rain at times
Moderate rain at times
 26° /12° 0.8 mm 6
Apr. 18 Overcast
Overcast
 11° /6° 3.1 mm 3
Apr. 19 Sunny
Sunny
 13° /0° 0 mm 4
Apr. 20 Patchy rain possible
Patchy rain possible
 10° /3° 1.7 mm 3
Apr. 21 Sunny
Sunny
 22° /2° 8.8 mm 6
Apr. 22 Overcast
Overcast
 23° /9° 0 mm 5
Apr. 23 Overcast
Overcast
 24° /9° 0 mm 5
Apr. 24 Heavy rain at times
Heavy rain at times
 16° /9° 11.3 mm 4
Apr. 25 Overcast
Overcast
 15° /8° 5.1 mm 4
Apr. 26 Overcast
Overcast
 16° /5° 2.2 mm 4
Apr. 27 Patchy rain possible
Patchy rain possible
 17° /12° 0.2 mm 4
Apr. 28 Patchy rain possible
Patchy rain possible
 28° /13° 1.1 mm 6
Apr. 29 Overcast
Overcast
 19° /7° 0 mm 4
Apr. 30 Thundery outbreaks possible
Thundery outbreaks possible
 15° /6° 2.3 mm 4
Next
Important Notice
Our weather forecast for Sioux City in April 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 April - FAQ

What are the expected maximum and minimum temperatures in Sioux City during April?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 5°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Sioux City during April?
Moderate rainfall is anticipated in Sioux City during April, with a total of 71 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Sioux City during April?
The average wind speed in Sioux City during April is 26 km/h, suggesting breezy to windy conditions, depending on your activities.

April rainfall patterns in Sioux City

Explore the daily rainfall trends and prepare for Sioux Citys April weather 💧
Typically, Sioux City has 13 rainy days in April with a total of 71 mm of rainfall.

UV exposure in Sioux City during April

Stay informed about UV levels for safe outdoor activities throughout the month of April ☀️

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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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