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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

    Official Weather Alert ⚠️

  • Red Flag Warning - See hour by hour.

    • Temperatures

  • Until now, April 2026 in Sioux City has been nearly identical to the historical average, with a temperature of 14.7 °F (showing only a slight deviation of -0.5 °F).

  • Expect cooler weather in the next days in Sioux City with the forecast suggesting a temperature of 17.9 °F, lower than the historical average.

  • In general, the average temperature in Sioux City at the beginning of April is 9.4 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 15.4 °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

  • New! Chat with our AI weatherman - it’s amazing and free.

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
8°
2
Moderate or heavy rain shower
11°
3
Overcast
7°
4
Overcast
10°
5
Sunny
14°
6
Sunny
11°
7
Sunny
5°
8
Overcast
14°
9
Overcast
14°
10
Patchy rain possible
16°
11
Partly cloudy
16°
12
Overcast
27°
13
Overcast
25°
14
Patchy rain possible
18°
15
Sunny
17°
16
Sunny
26°
17
Moderate rain at times
22°
18
Overcast
12°
19
Sunny
15°
20
Patchy rain possible
16°
21
Sunny
25°
22
Weather Alert Sunny
31°
23
Patchy rain possible
27°
24
Sunny
16°
25
Patchy rain possible
14°
26
Heavy rain
10°
27
Patchy rain possible
12°
28
Patchy rain possible
14°
29
Partly cloudy
22°
30
Sunny
20°

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 Snow More
Apr. 1 Heavy rain at times
Heavy rain at times
 8° /2° 33.4 mm 0 cm
Apr. 2 Moderate or heavy rain shower
Moderate or heavy rain shower
 11° /2° 30.4 mm 0 cm
Apr. 3 Overcast
Overcast
 7° /0° 5.8 mm 0 cm
Apr. 4 Overcast
Overcast
 10° /2° 0.3 mm 0 cm
Apr. 5 Sunny
Sunny
 14° /-1° 0.2 mm 0 cm
Apr. 6 Sunny
Sunny
 11° /-1° 0 mm 0 cm
Apr. 7 Sunny
Sunny
 5° /0° 11 mm 6.9 cm
Apr. 8 Overcast
Overcast
 14° /0° 0 mm 0 cm
Apr. 9 Overcast
Overcast
 14° /1° 0 mm 0 cm
Apr. 10 Patchy rain possible
Patchy rain possible
 16° /3° 0.1 mm 0 cm
Apr. 11 Partly cloudy
Partly cloudy
 16° /3° 3.6 mm 0 cm
Apr. 12 Overcast
Overcast
 27° /11° 0 mm 0 cm
Apr. 13 Overcast
Overcast
 25° /13° 0 mm 0 cm
Apr. 14 Patchy rain possible
Patchy rain possible
 18° /9° 0.1 mm 0 cm
Apr. 15 Sunny
Sunny
 17° /6° 2.8 mm 0 cm
Apr. 16 Sunny
Sunny
 26° /5° 4.2 mm 0 cm
Apr. 17 Moderate rain at times
Moderate rain at times
 22° /8° 0.4 mm 0 cm
Apr. 18 Overcast
Overcast
 12° /3° 1.5 mm 0 cm
Apr. 19 Sunny
Sunny
 15° /-1° 0 mm 0 cm
Apr. 20 Patchy rain possible
Patchy rain possible
 16° /3° 0.9 mm 0 cm
Apr. 21 Sunny
Sunny
 25° /7° 4.4 mm 0 cm
Apr. 22 Sunny
Sunny
 31° /15° 0 mm 0 cm
Apr. 23 Patchy rain possible
Patchy rain possible
 27° /12° 0.9 mm 0 cm
Apr. 24 Sunny
Sunny
 16° /7° 0 mm 0 cm
Apr. 25 Patchy rain possible
Patchy rain possible
 14° /6° 0.1 mm 0 cm
Apr. 26 Heavy rain
Heavy rain
 10° /6° 27.7 mm 0 cm
Apr. 27 Patchy rain possible
Patchy rain possible
 12° /7° 0.2 mm 0 cm
Apr. 28 Patchy rain possible
Patchy rain possible
 14° /5° 0 mm 0 cm
Apr. 29 Partly cloudy
Partly cloudy
 22° /9° 0.1 mm 0 cm
Apr. 30 Sunny
Sunny
 20° /11° 0 mm 0 cm
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.

Sioux City snow forecast April 2026

Track daily snowfall levels and discover Sioux City’s snowy potential this April ❄️

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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