July Weather in Louisville, United States

Last updated: June 24, 2025

In Louisville, United States, the average temperature in July hovers around 20°C (68°F). Expect a range from a cool 7°C (45°F) to a warm 34°C (93°F). With 71 mm (2.8 in) of precipitation spread across 16 days, you may want to keep an umbrella handy. On the bright side, the average humidity sits at a comfortable 52%. Enjoy the weather!

July Temperature in Louisville

In July in Louisville, the average temperature is 20°C (68°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop as low as 7°C (45°F). Be prepared for a range of temperatures to ensure a comfortable and enjoyable travel experience.

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

The chart illustrates July temperature patterns in Louisville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Louisville, July typically has an average temperature of 20°C (68°F), with highs reaching up to 34°C (93°F) and lows dropping to around 7°C (45°F).

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

July Precipitation in Louisville

In Louisville in July, the precipitation amount is 71 mm (2.8 in) over the course of 16 days.

July Precipitation Trends in Louisville

The chart displays monthly precipitation patterns in Louisville, 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 Louisville, July typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 16 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 Louisville

In Louisville in July, humidity is 52%. With an average temperature of 20°C (68°F), this humidity feels like a comfortable, refreshing embrace, making it ideal for exploring the sights without feeling overly sticky or drained.

July Average Humidity in Louisville

This chart illustrates the average monthly humidity levels in Louisville, 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 Louisville is approximately 52%, 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 Louisville

In Louisville 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 Louisville.

Maximum UV Index Levels in Louisville for July

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

Data source: Louisville 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 Louisville Compares to Other Months

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

This table compares monthly weather conditions in Louisville, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (26°F)	25 mm (1.0 inches)	88%	moderate
February Weather	-4°C (26°F)	36 mm (1.4 inches)	87%	high
March Weather	2°C (35°F)	62 mm (2.5 inches)	81%	very high
April Weather	5°C (42°F)	68 mm (2.7 inches)	76%	extreme
May Weather	10°C (50°F)	134 mm (5.3 inches)	66%	extreme
June Weather	17°C (63°F)	74 mm (2.9 inches)	58%	extreme
July Weather	20°C (68°F)	71 mm (2.8 inches)	52%	extreme
August Weather	19°C (67°F)	67 mm (2.7 inches)	56%	extreme
September Weather	16°C (61°F)	42 mm (1.6 inches)	65%	very high
October Weather	7°C (45°F)	48 mm (1.9 inches)	76%	high
November Weather	2°C (36°F)	30 mm (1.2 inches)	82%	moderate
December Weather	-2°C (29°F)	19 mm (0.8 inches)	89%	moderate