Naperville (IL)
July
Weather in Naperville, Illinois for July 2027
Your guide to Naperville weather in July - trends and predictions
In general, the average temperature in Naperville at the beginning of July is 28.5 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 29.1 °C by the end of July.
The climate of Naperville in July is notably wet, with an average of 15 rainy days, and a total of 183.4 mm of precipitation.
Is July a good time to visit Naperville? check out the best time to travel to Naperville page.
✨ Is July a good time to visit Naperville? – Ask the AI Weatherman
Temperatures
Rain 🌧️
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16
Dry days
15
Rainy days
0
Snow days
29°/19°
Temperatures
16 km/h
Avg max wind
74 %
Avg humidity
Naperville Weather July
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Temperatures trend during July in Naperville
See the weather trend as well as the moving average line
July weather in Naperville day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jul. 1 |  Light rain | 29° /18° | 5.7 mm | 7 | |
| Jul. 2 |  Moderate rain | 28° /20° | 11.7 mm | 8 | |
| Jul. 3 | Moderate rain | 30° /19° | 11.1 mm | 8 | |
| Jul. 4 | Moderate rain | 30° /20° | 14.1 mm | 7 | |
| Jul. 5 |  Moderate or heavy rain shower | 28° /20° | 7.4 mm | 7 | |
| Jul. 6 | Light rain | 27° /18° | 7.4 mm | 7 | |
| Jul. 7 |  Patchy rain possible | 29° /17° | 1.2 mm | 8 | |
| Jul. 8 | Moderate or heavy rain shower | 28° /18° | 7.7 mm | 8 | |
| Jul. 9 | Light rain | 28° /18° | 7.4 mm | 8 | |
| Jul. 10 | Light rain | 29° /18° | 5.8 mm | 8 | |
| Jul. 11 | Moderate rain | 29° /19° | 10.4 mm | 8 | |
| Jul. 12 | Moderate or heavy rain shower | 29° /19° | 6.7 mm | 8 | |
| Jul. 13 | Patchy rain possible | 28° /18° | 0.8 mm | 7 | |
| Jul. 14 |  Overcast | 32° /19° | 0.1 mm | 8 | |
| Jul. 15 |  Heavy rain at times | 31° /21° | 5.9 mm | 8 | |
| Jul. 16 | Moderate rain | 31° /20° | 23.9 mm | 8 | |
| Jul. 17 | Light rain | 26° /18° | 4 mm | 7 | |
| Jul. 18 | Patchy rain possible | 27° /17° | 1.4 mm | 7 | |
| Jul. 19 | Light rain | 28° /17° | 6.1 mm | 8 | |
| Jul. 20 | Overcast | 27° /18° | 0.2 mm | 7 | |
| Jul. 21 | Overcast | 28° /18° | 0.4 mm | 8 | |
| Jul. 22 | Overcast | 27° /17° | 0.8 mm | 8 | |
| Jul. 23 | Patchy rain possible | 30° /16° | 1.8 mm | 8 | |
| Jul. 24 | Overcast | 29° /19° | 0.6 mm | 8 | |
| Jul. 25 |  Partly cloudy | 29° /18° | 0 mm | 8 | |
| Jul. 26 | Patchy rain possible | 30° /19° | 2.1 mm | 7 | |
| Jul. 27 | Moderate rain | 30° /21° | 10 mm | 7 | |
| Jul. 28 | Moderate or heavy rain shower | 29° /21° | 5.4 mm | 8 | |
| Jul. 29 | Light rain | 30° /19° | 2.6 mm | 8 | |
| Jul. 30 | Partly cloudy | 30° /19° | 0.6 mm | 8 | |
| Jul. 31 | Moderate rain | 27° /18° | 20.1 mm | 7 | |
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Important Notice
Our weather forecast for Naperville 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 Naperville forecast closer to your planned date for the most up-to-date weather information.
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Naperville in July - FAQ
What are the expected maximum and minimum temperatures in Naperville during July?
During July, expect a variety of temperatures with highs around 29° and lows near 19°, suitable for diverse activities and preferences.
How much rainfall should be expected in Naperville during July?
Significant rainfall exceeding 183.4 mm is expected in Naperville during July, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Naperville during July?
The average wind speed in Naperville during July is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
July rainfall patterns in Naperville
Explore the daily rainfall trends and prepare for Napervilles July weather 💧
Typically, Naperville has 15 rainy days in July with a total of 183.4 mm of rainfall.
UV exposure in Naperville during July
Stay informed about UV levels for safe outdoor activities throughout the month of July ☀️
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