October Weather in Louisville, United States

Last updated: June 24, 2025

In October, the average temperature in Louisville, United States is a pleasant 21°C (70°F). However, be prepared for temperatures that can swing from a chilly 3°C (37°F) to a sizzling 38°C (100°F). Expect 97 mm (3.8 in) of precipitation spread over 8 days, contributing to an average humidity of 78%.

October Temperature in Louisville

In October in Louisville, the average temperature is 21°C (70°F). Maximums can reach 38°C (100°F), and minimums can be as low as 3°C (37°F). Be prepared for a wide range of temperatures during your travels, so pack accordingly!

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

The chart illustrates October 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, October typically has an average temperature of 21°C (70°F), with highs reaching up to 38°C (100°F) and lows dropping to around 3°C (37°F).

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

October Precipitation in Louisville

In Louisville in October, the total precipitation amount is 97 mm (3.8 in), occurring over a span of 8 days.

October Precipitation Trends in Louisville

The chart displays monthly precipitation patterns in Louisville, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Louisville, October typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 8 days.

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

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Millimeters (mm) Inches (in)

October Humidity in Louisville

In Louisville in October, humidity is 78%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that can leave travelers feeling sticky and slightly fatigued, making it important to stay hydrated and take frequent breaks from outdoor activities.

October Average Humidity in Louisville

This chart illustrates the average monthly humidity levels in Louisville, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Louisville is approximately 78%, offering insight into how humid the weather typically is during this month.

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

October UV Index in Louisville

In Louisville in October, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Louisville.

Maximum UV Index Levels in Louisville for October

The chart shows the monthly maximum UV Index (UVI) for Louisville in October, 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 October, the maximum UV index in Louisville typically reaches 8, which falls under the very high exposure category.

Data source: Louisville October 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 October 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 October’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 October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	89 mm (3.5 inches)	86%	moderate
February Weather	13°C (55°F)	116 mm (4.6 inches)	84%	high
March Weather	15°C (60°F)	70 mm (2.8 inches)	83%	very high
April Weather	19°C (67°F)	99 mm (3.9 inches)	81%	very high
May Weather	24°C (75°F)	95 mm (3.7 inches)	81%	extreme
June Weather	27°C (80°F)	119 mm (4.7 inches)	81%	extreme
July Weather	28°C (83°F)	109 mm (4.3 inches)	83%	extreme
August Weather	28°C (82°F)	108 mm (4.3 inches)	81%	extreme
September Weather	26°C (79°F)	83 mm (3.3 inches)	82%	very high
October Weather	21°C (70°F)	97 mm (3.8 inches)	78%	very high
November Weather	13°C (56°F)	55 mm (2.2 inches)	86%	high
December Weather	11°C (52°F)	112 mm (4.4 inches)	89%	moderate