July Weather in Caseyville, United States

Last updated: June 24, 2025

In July, the average temperature in Caseyville, United States hovers around 26°C (80°F), making it a delightful time to visit. However, be prepared for some variability, as temperatures can range from a cool 16°C (61°F) to a sweltering 38°C (101°F). Expect about 96 mm (3.8 in) of precipitation spread over 10 days, contributing to the area's lush greenery. Additionally, the average humidity sits at a notable 81%, creating a pleasantly tropical atmosphere.

July Temperature in Caseyville

In July in Caseyville, the average temperature is 26°C (80°F). The maximum can reach 38°C (101°F) and the minimum can be as low as 16°C (61°F). It's an ideal time for travelers to enjoy warm weather while being prepared for the occasional cooler evening.

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

The chart illustrates July temperature patterns in Caseyville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Caseyville, July typically has an average temperature of 26°C (80°F), with highs reaching up to 38°C (101°F) and lows dropping to around 16°C (61°F).

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

July Precipitation in Caseyville

In Caseyville in July, the total precipitation amount is 96 mm (3.8 in) over a span of 10 days.

July Precipitation Trends in Caseyville

The chart displays monthly precipitation patterns in Caseyville, 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 Caseyville, July typically receives around 96 mm (3.8 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 Caseyville

In Caseyville in July, humidity is 81%. With an average temperature of 26°C (80°F), this humidity feels like a warm, enveloping blanket that clings to the skin, making outdoor activities feel more strenuous and requiring frequent breaks to stay refreshed and hydrated.

July Average Humidity in Caseyville

This chart illustrates the average monthly humidity levels in Caseyville, 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 Caseyville is approximately 81%, 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 Caseyville

In Caseyville 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 Caseyville.

Maximum UV Index Levels in Caseyville for July

The chart shows the monthly maximum UV Index (UVI) for Caseyville 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 Caseyville typically reaches 10, which falls under the very high exposure category.

Data source: Caseyville 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 Caseyville Compares to Other Months

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

This table compares monthly weather conditions in Caseyville, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (32°F)	78 mm (3.1 inches)	82%	moderate
February Weather	2°C (36°F)	80 mm (3.2 inches)	80%	moderate
March Weather	8°C (47°F)	136 mm (5.4 inches)	80%	high
April Weather	13°C (55°F)	144 mm (5.7 inches)	80%	very high
May Weather	20°C (68°F)	154 mm (6.1 inches)	82%	very high
June Weather	25°C (77°F)	109 mm (4.3 inches)	83%	extreme
July Weather	26°C (80°F)	96 mm (3.8 inches)	81%	very high
August Weather	25°C (76°F)	130 mm (5.1 inches)	80%	very high
September Weather	22°C (73°F)	59 mm (2.3 inches)	76%	very high
October Weather	15°C (59°F)	103 mm (4.1 inches)	76%	high
November Weather	7°C (44°F)	75 mm (3.0 inches)	85%	moderate
December Weather	4°C (39°F)	62 mm (2.4 inches)	86%	moderate