October Weather in Rosemont, United States

Last updated: June 24, 2025

In Rosemont, United States, the average temperature in October hovers around 18°C (65°F), making it a pleasant time to visit. Expect temperature fluctuations, with a minimum dipping to 5°C (41°F) and a maximum soaring to 38°C (101°F). This month also sees 41 mm (1.6 in) of precipitation spread across 2 days, contributing to a comfortable average humidity of 65%.

October Temperature in Rosemont

In October, in Rosemont, the average temperature is 18°C (65°F). The maximum can reach 38°C (101°F), while the minimum can drop to as low as 5°C (41°F). This makes Rosemont an ideal destination for travelers seeking a warm climate with a range of temperatures to enjoy outdoor activities.

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

The chart illustrates October temperature patterns in Rosemont, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosemont, October typically has an average temperature of 18°C (65°F), with highs reaching up to 38°C (101°F) and lows dropping to around 5°C (41°F).

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

October Precipitation in Rosemont

In Rosemont in October, the precipitation amount is 41 mm (1.6 in) over the course of 2 days.

October Precipitation Trends in Rosemont

The chart displays monthly precipitation patterns in Rosemont, 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 Rosemont, October typically receives around 41 mm (1.6 inches) of precipitation spread over approximately 2 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Rosemont

In Rosemont in October, humidity is 65%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace that clings to your skin, making you feel slightly sticky as you explore. It's comfortable enough for sightseeing, but breathable enough to enjoy a leisurely stroll, though you might find yourself seeking shade during the warmest parts of the day.

October Average Humidity in Rosemont

This chart illustrates the average monthly humidity levels in Rosemont, 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 Rosemont is approximately 65%, 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 Rosemont

In Rosemont in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Rosemont, you can refer to this Hourly UV Index in Rosemont.

Maximum UV Index Levels in Rosemont for October

The chart shows the monthly maximum UV Index (UVI) for Rosemont 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 Rosemont typically reaches 6, which falls under the high exposure category.

Data source: Rosemont 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 Rosemont Compares to Other Months

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

This table compares monthly weather conditions in Rosemont, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	128 mm (5.0 inches)	84%	moderate
February Weather	11°C (52°F)	118 mm (4.7 inches)	84%	moderate
March Weather	13°C (55°F)	119 mm (4.7 inches)	83%	high
April Weather	16°C (62°F)	54 mm (2.1 inches)	81%	very high
May Weather	20°C (68°F)	25 mm (1.0 inches)	74%	very high
June Weather	24°C (75°F)	5 mm (0.2 inches)	64%	extreme
July Weather	25°C (77°F)	0 mm (0.0 inches)	44%	extreme
August Weather	25°C (77°F)	0 mm (0.0 inches)	36%	very high
September Weather	23°C (73°F)	3 mm (0.1 inches)	44%	very high
October Weather	18°C (65°F)	41 mm (1.6 inches)	65%	high
November Weather	13°C (55°F)	66 mm (2.6 inches)	84%	moderate
December Weather	9°C (48°F)	116 mm (4.6 inches)	83%	moderate