October Weather in Westmont, United States

Last updated: June 24, 2025

In Westmont, United States, the average temperature in October is a pleasant 21°C (70°F). However, it can fluctuate, with minimums dipping to 9°C (49°F) and maximums soaring up to 40°C (105°F). During this month, expect about 8 mm (0.3 in) of precipitation spread over just 1 day, while the average humidity rests at a comfortable 67%.

October Temperature in Westmont

In October in Westmont, the average temperature is 21°C (70°F). Maximums can reach 40°C (105°F), and minimums can be as low as 9°C (49°F). Travelers should prepare for warm days and cooler nights, ensuring they pack suitable clothing for varying temperatures.

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

The chart illustrates October temperature patterns in Westmont, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Westmont, October typically has an average temperature of 21°C (70°F), with highs reaching up to 40°C (105°F) and lows dropping to around 9°C (49°F).

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

October Precipitation in Westmont

In Westmont in October, the precipitation amount is 8 mm (0.3 in) over the course of 1 day.

October Precipitation Trends in Westmont

The chart displays monthly precipitation patterns in Westmont, 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 Westmont, October typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 1 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 Westmont

In Westmont in October humidity is 67%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making travel a bit stifling but still enjoyable if you're prepared with light clothing and plenty of water.

October Average Humidity in Westmont

This chart illustrates the average monthly humidity levels in Westmont, 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 Westmont is approximately 67%, 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 Westmont

In Westmont in October, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Westmont.

Maximum UV Index Levels in Westmont for October

The chart shows the monthly maximum UV Index (UVI) for Westmont 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 Westmont typically reaches 7, which falls under the high exposure category.

Data source: Westmont 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 Westmont Compares to Other Months

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

This table compares monthly weather conditions in Westmont, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (57°F)	71 mm (2.8 inches)	74%	moderate
February Weather	14°C (57°F)	55 mm (2.2 inches)	79%	high
March Weather	15°C (59°F)	70 mm (2.8 inches)	75%	very high
April Weather	18°C (64°F)	19 mm (0.7 inches)	70%	very high
May Weather	19°C (66°F)	12 mm (0.5 inches)	70%	very high
June Weather	21°C (70°F)	3 mm (0.1 inches)	72%	extreme
July Weather	24°C (75°F)	2 mm (0.1 inches)	73%	extreme
August Weather	24°C (76°F)	2 mm (0.1 inches)	69%	very high
September Weather	23°C (74°F)	3 mm (0.1 inches)	68%	very high
October Weather	21°C (70°F)	8 mm (0.3 inches)	67%	high
November Weather	17°C (63°F)	17 mm (0.7 inches)	68%	moderate
December Weather	13°C (57°F)	76 mm (3.0 inches)	71%	moderate