July Weather in Wheaton, United States

Last updated: June 24, 2025

In July, the average temperature in Wheaton, United States reaches a pleasant 26°C (79°F). However, temperatures can vary significantly, with a minimum of 15°C (59°F) and a maximum of 36°C (97°F). Expect some rain, as 93 mm (3.7 in) of precipitation is likely over 10 days. With an average humidity of 78%, it’s a month where you can feel both warmth and a touch of moisture in the air.

July Temperature in Wheaton

In July in Wheaton, the average temperature is 26°C (79°F). Maximums can reach 36°C (97°F), while minimums can drop to as low as 15°C (59°F). This weather makes it an ideal time for travelers seeking warm days and cool evenings.

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

The chart illustrates July temperature patterns in Wheaton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wheaton, July typically has an average temperature of 26°C (79°F), with highs reaching up to 36°C (97°F) and lows dropping to around 15°C (59°F).

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

July Precipitation in Wheaton

In Wheaton in July, the precipitation amount is 93 mm (3.7 in) over the course of 10 days.

July Precipitation Trends in Wheaton

The chart displays monthly precipitation patterns in Wheaton, 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 Wheaton, July typically receives around 93 mm (3.7 inches) of precipitation spread over approximately 10 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 Wheaton

In Wheaton in July, humidity is 78%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket wrapping around you, making travel a bit sluggish as the air hangs thick, leaving you in need of frequent breaks to hydrate and find shade.

July Average Humidity in Wheaton

This chart illustrates the average monthly humidity levels in Wheaton, 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 Wheaton is approximately 78%, 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 Wheaton

In Wheaton in July, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Wheaton.

Maximum UV Index Levels in Wheaton for July

The chart shows the monthly maximum UV Index (UVI) for Wheaton 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 Wheaton typically reaches 11, which falls under the extreme exposure category.

Data source: Wheaton 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 Wheaton Compares to Other Months

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

This table compares monthly weather conditions in Wheaton, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	91 mm (3.6 inches)	81%	moderate
February Weather	4°C (39°F)	95 mm (3.7 inches)	78%	high
March Weather	10°C (50°F)	159 mm (6.3 inches)	76%	high
April Weather	13°C (56°F)	174 mm (6.8 inches)	78%	very high
May Weather	19°C (66°F)	172 mm (6.8 inches)	83%	very high
June Weather	24°C (76°F)	104 mm (4.1 inches)	83%	extreme
July Weather	26°C (79°F)	93 mm (3.7 inches)	78%	extreme
August Weather	25°C (77°F)	120 mm (4.7 inches)	68%	very high
September Weather	23°C (73°F)	56 mm (2.2 inches)	64%	very high
October Weather	15°C (59°F)	161 mm (6.3 inches)	70%	high
November Weather	8°C (47°F)	70 mm (2.7 inches)	83%	moderate
December Weather	6°C (42°F)	61 mm (2.4 inches)	87%	moderate