July Weather in Evanston, United States

Last updated: June 24, 2025

In July, the average temperature in Evanston, United States is a comfortable 21°C (70°F). However, be prepared for a range, as temperatures can dip to a chilly 4°C (39°F) or soar up to a sweltering 33°C (92°F). With an average precipitation of 23 mm (0.9 in) spread over 5 days, it's wise to bring an umbrella, especially considering the 44% average humidity during this month.

July Temperature in Evanston

In July in Evanston, the average temperature is 21°C (70°F). The maximum can reach 33°C (92°F), while the minimum can dip as low as 4°C (39°F). This weather makes Evanston an ideal destination for travelers seeking mild temperatures and a range of outdoor activities.

July Weather in Evanston: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Evanston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Evanston, July typically has an average temperature of 21°C (70°F), with highs reaching up to 33°C (92°F) and lows dropping to around 4°C (39°F).

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

July Precipitation in Evanston

In Evanston in July, the precipitation amount is 23 mm (0.9 in) over the course of 5 days.

July Precipitation Trends in Evanston

The chart displays monthly precipitation patterns in Evanston, 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 Evanston, July typically receives around 23 mm (0.9 inches) of precipitation spread over approximately 5 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

July Humidity in Evanston

In Evanston in July, humidity is 44%. With an average temperature of 21°C (70°F), this humidity feels like a refreshing embrace, making it a comfortable environment for exploring and enjoying outdoor activities without feeling overheated.

July Average Humidity in Evanston

This chart illustrates the average monthly humidity levels in Evanston, 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 Evanston is approximately 44%, 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 Evanston

In Evanston in July, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Evanston.

Maximum UV Index Levels in Evanston for July

The chart shows the monthly maximum UV Index (UVI) for Evanston 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 Evanston typically reaches 12, which falls under the extreme exposure category.

Data source: Evanston 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 Evanston Compares to Other Months

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

This table compares monthly weather conditions in Evanston, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	43 mm (1.7 inches)	91%	moderate
February Weather	-5°C (24°F)	52 mm (2.1 inches)	92%	high
March Weather	0°C (32°F)	55 mm (2.2 inches)	84%	very high
April Weather	3°C (38°F)	50 mm (2.0 inches)	74%	very high
May Weather	9°C (48°F)	61 mm (2.4 inches)	62%	extreme
June Weather	16°C (61°F)	21 mm (0.8 inches)	56%	extreme
July Weather	21°C (70°F)	23 mm (0.9 inches)	44%	extreme
August Weather	19°C (67°F)	21 mm (0.8 inches)	37%	extreme
September Weather	14°C (58°F)	27 mm (1.0 inches)	46%	very high
October Weather	5°C (41°F)	35 mm (1.4 inches)	67%	high
November Weather	0°C (33°F)	43 mm (1.7 inches)	84%	moderate
December Weather	-5°C (23°F)	42 mm (1.7 inches)	88%	moderate