Live Weather & Forecast
Weather in Sioux City
Iowa, United States · Real-time conditions & 3-day outlook
22°C
Feels like 22°C
71°F / Feels 71°F
Overcast
Sioux City, Iowa
🌞 Daytime
Updated: 2026-04-13 12:15
Humidity
79%
Wind
20.9 km/h SSE
Wind Gust
24 km/h
Pressure
1005 mb
Visibility
16 km
UV Index
5
(Moderate)
Precipitation
0 mm
Cloud Cover
100%
Dew Point
17.5°C
Wind Degree
162°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
154.9 μg/m³
NO₂
2.5 μg/m³
O₃
102 μg/m³
SO₂
1.6 μg/m³
PM 2.5
4.5 μg/m³
PM 10
6 μg/m³
Today's Hourly Forecast
24-hour breakdown for Sioux City, Iowa
12 AM
15°
Clear
1 AM
15°
Clear
2 AM
14°
Clear
3 AM
14°
Clear
4 AM
14°
Clear
5 AM
14°
Clear
6 AM
14°
Clear
7 AM
15°
Sunny
8 AM
16°
Mist
9 AM
18°
Partly Cloudy
10 AM
21°
Partly Cloudy
11 AM
23°
Partly Cloudy
12 PM
22°
Overcast
1 PM
29°
Sunny
2 PM
31°
Sunny
3 PM
32°
Sunny
4 PM
33°
Sunny
5 PM
32°
Sunny
6 PM
30°
Sunny
7 PM
27°
Sunny
8 PM
25°
Sunny
9 PM
22°
Patchy rain nearby
10 PM
20°
Clear
11 PM
18°
Clear
3-Day Forecast
Daily overview for Sioux City, Iowa
Today
Sunny
34°
/
13°
🌧️ 0% chance of rain
💧 Avg. humidity: 64%
💨 Max wind: 31.7 km/h
🌧️ Total precip: 0.08 mm
☀️ UV Index: 1.4
🌅 Sunrise: 06:47 AM
🌇 Sunset: 08:05 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Overcast
26°
/
12°
🌧️ 0% chance of rain
💧 Avg. humidity: 75%
💨 Max wind: 19.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:46 AM
🌇 Sunset: 08:06 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Moderate rain
14°
/
12°
🌧️ 88% chance of rain
💧 Avg. humidity: 89%
💨 Max wind: 26.6 km/h
🌧️ Total precip: 19.45 mm
☀️ UV Index: 1.7
🌅 Sunrise: 06:44 AM
🌇 Sunset: 08:07 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Sioux City
Plan your trip to Sioux City, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Sioux City?
Current conditions in Sioux City: Overcast, temperature 22°C, humidity 79%.
What is the best time to visit Sioux City?
The best time to visit Sioux City is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Sioux City?
Sioux City is located at approximately 42.5° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Sioux City?
The wettest period in Sioux City is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Sioux City?
For visits to Sioux City during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Sioux City in?
Sioux City is located in United States, in the state of Iowa.
What are the public holidays in Sioux City in 2026?
View the 2026 public holidays for Sioux City on our Holidays page.
What are the GPS coordinates used for the weather forecast in Sioux City?
The weather forecast for Sioux City uses coordinates 42.4967, -96.4059.