July Weather in Glen Ellyn, United States

Last updated: June 24, 2025

In July, the average temperature in Glen Ellyn, United States is a pleasant 24°C (75°F). Temperatures can vary, dipping to a minimum of 14°C (57°F) and peaking at a warm 35°C (95°F). Visitors can expect 105 mm (4.1 in) of precipitation over approximately 13 days, with an average humidity level of 80%.

July Temperature in Glen Ellyn

In July in Glen Ellyn, the average temperature is 24°C (75°F). Maximums can reach 35°C (95°F), while minimums can drop to as low as 14°C (57°F). This pleasant climate makes Glen Ellyn an ideal travel destination for those looking to enjoy warm weather with comfortable evenings.

July Weather in Glen Ellyn: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Glen Ellyn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Glen Ellyn, July typically has an average temperature of 24°C (75°F), with highs reaching up to 35°C (95°F) and lows dropping to around 14°C (57°F).

Data source: Temperature data for Glen Ellyn generated using information from the Copernicus Climate Change Service.

July Precipitation in Glen Ellyn

In Glen Ellyn in July, the precipitation amount is 105 mm (4.1 in) over the course of 13 days.

July Precipitation Trends in Glen Ellyn

The chart displays monthly precipitation patterns in Glen Ellyn, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Glen Ellyn, July typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 13 days.

Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

July Humidity in Glen Ellyn

In Glen Ellyn in July humidity is 80%. With an average temperature of 24°C (75°F), this humidity feels like a warm, sticky blanket enveloping you, making travel slightly uncomfortable as sweat clings to your skin and the air feels thick, urging you to seek shade and hydration frequently.

July Average Humidity in Glen Ellyn

This chart illustrates the average monthly humidity levels in Glen Ellyn, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Glen Ellyn is approximately 80%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Glen Ellyn

In Glen Ellyn in July, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Glen Ellyn.

Maximum UV Index Levels in Glen Ellyn for July

The chart shows the monthly maximum UV Index (UVI) for Glen Ellyn in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In July, the maximum UV index in Glen Ellyn typically reaches 10, which falls under the very high exposure category.

Data source: Glen Ellyn July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How July Weather in Glen Ellyn Compares to Other Months

Weather in Glen Ellyn varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Glen Ellyn, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Glen Ellyn, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (26°F)	61 mm (2.4 inches)	82%	moderate
February Weather	-2°C (28°F)	60 mm (2.4 inches)	83%	moderate
March Weather	4°C (39°F)	79 mm (3.1 inches)	84%	high
April Weather	9°C (48°F)	115 mm (4.5 inches)	85%	very high
May Weather	15°C (60°F)	164 mm (6.4 inches)	79%	very high
June Weather	21°C (71°F)	134 mm (5.3 inches)	82%	very high
July Weather	24°C (75°F)	105 mm (4.1 inches)	80%	very high
August Weather	23°C (73°F)	92 mm (3.6 inches)	81%	very high
September Weather	20°C (68°F)	85 mm (3.3 inches)	80%	very high
October Weather	12°C (54°F)	127 mm (5.0 inches)	82%	high
November Weather	4°C (39°F)	55 mm (2.2 inches)	88%	moderate
December Weather	0°C (33°F)	53 mm (2.1 inches)	84%	low