Sioux City (IA)
July
Weather in Sioux City, Iowa for July 2026
Your guide to Sioux City weather in July - trends and predictions
Extreme Heat Warning - See hour by hour.
So far, July 2026 in Sioux City is slightly warmer than the historical average by 1 °C.
The forecast for the next days in Sioux City predicts temperatures to be around 33 °C, close to the historical average.
In general, the average temperature in Sioux City at the beginning of July is 32.3 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 36.4 °C by the end of July.
The climate of Sioux City in July is notably wet, with an average of 14 rainy days, and a total of 221.9 mm of precipitation.
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Temperatures
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17
Dry days
14
Rainy days
0
Snow days
31°/20°
Temperatures
20 km/h
Avg max wind
74 %
Avg humidity
Sioux City Weather July
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Temperatures trend during July in Sioux City
See the weather trend as well as the moving average line
July weather in Sioux City day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jul. 1 |  Mist | 31° /18° | 5.1 mm | 7 | |
| Jul. 2 |  Partly cloudy | 35° /19° | 4.2 mm | 11 | |
| Jul. 3 | Partly cloudy | 33° /20° | 5.9 mm | 10 | |
| Jul. 4 |  Thundery outbreaks possible | 33° /20° | 4.8 mm | 9 | |
| Jul. 5 | Thundery outbreaks possible | 32° /20° | 8.4 mm | 10 | |
| Jul. 6 | Thundery outbreaks possible | 32° /18° | 0 mm | 9 | |
| Jul. 7 |  Overcast | 30° /18° | 0 mm | 9 | |
| Jul. 8 |  Moderate or heavy rain shower | 31° /19° | 50.1 mm | 9 | |
| Jul. 9 | Fog | 32° /19° | 0.1 mm | 9 | |
| Jul. 10 |  Light rain shower | 30° /18° | 3.4 mm | 9 | |
| Jul. 11 |  Heavy rain | 30° /18° | 73 mm | 9 | |
| Jul. 12 | Light rain shower | 31° /18° | 3 mm | 9 | |
| Jul. 13 | Mist | 32° /15° | 0 mm | 9 | |
| Jul. 14 | Mist | 34° /17° | 0 mm | 10 | |
| Jul. 15 | Overcast | 33° /18° | 0 mm | 9 | |
| Jul. 16 | Torrential rain shower | 30° /19° | 28.5 mm | 9 | |
| Jul. 17 |  Cloudy | 29° /17° | 0 mm | 8 | |
| Jul. 18 | Thundery outbreaks possible | 31° /19° | 0.6 mm | 9 | |
| Jul. 19 | Fog | 30° /20° | 1.5 mm | 9 | |
| Jul. 20 |  Sunny | 43° /24° | 0.2 mm | 10.3 | |
| Jul. 21 | Sunny | 33° /21° | 0 mm | 9.4 | |
| Jul. 22 | Sunny | 23° /16° | 6.5 mm | 4.6 | |
| Jul. 23 | Patchy rain possible | 20° /16° | 8 mm | 4.4 | |
| Jul. 24 | Patchy rain possible | 22° /16° | 10.6 mm | 6 | |
| Jul. 25 | Sunny | 30° /14° | 0 mm | 7 | |
| Jul. 26 | Sunny | 37° /19° | 0.8 mm | 9 | |
| Jul. 27 | Sunny | 41° /22° | 3.2 mm | 10 | |
| Jul. 28 | Sunny | 41° /23° | 0 mm | 10 | |
| Jul. 29 | Sunny | 43° /23° | 2.1 mm | 10 | |
| Jul. 30 | Sunny | 31° /18° | 0.3 mm | 8 | |
| Jul. 31 | Sunny | 32° /16° | 0 mm | 8 | |
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Important Notice
Our weather forecast for Sioux City in July 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 July - FAQ
What are the expected maximum and minimum temperatures in Sioux City during July?
Expect warm days with temperatures around 31°, cooling to mild conditions of 20° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Sioux City during July?
Significant rainfall exceeding 221.9 mm is expected in Sioux City during July, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Sioux City during July?
The average wind speed in Sioux City during July is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
July rainfall patterns in Sioux City
Explore the daily rainfall trends and prepare for Sioux Citys July weather 💧
Typically, Sioux City has 14 rainy days in July with a total of 221.9 mm of rainfall.
UV exposure in Sioux City during July
Stay informed about UV levels for safe outdoor activities throughout the month of July ☀️
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