nomadseason

October Weather in Arlington Heights, United States

Last updated: June 24, 2025

In Arlington Heights, United States, the average temperature in October hovers around 8°C (47°F), with a possible dip to a chilly -5°C (23°F) or a warm peak of 24°C (75°F). Expect about 302 mm (11.9 in) of precipitation spread over 16 days, contributing to an average humidity of 88%. Stay prepared for a mix of cool temperatures and damp conditions!

October Temperature in Arlington Heights

In October in Arlington Heights, the average temperature is 8°C (47°F). Maximum temperatures can reach 24°C (75°F), while minimums can drop as low as -5°C (23°F). It's advisable to pack for both warm and cold weather to fully enjoy your travels.

October Weather in Arlington Heights: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Arlington Heights, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arlington Heights, October typically has an average temperature of 8°C (47°F), with highs reaching up to 24°C (75°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec373541475459636458474136
Data source: Temperature data for Arlington Heights generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Arlington Heights

In Arlington Heights in October, the precipitation amount reaches 302 mm (11.9 in) over a span of 16 days.

October Precipitation Trends in Arlington Heights

The chart displays monthly precipitation patterns in Arlington Heights, 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 Arlington Heights, October typically receives around 302 mm (11.9 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec3143252562141131043738175302404365
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

October Humidity in Arlington Heights

In Arlington Heights in October, humidity is 88%. With an average temperature of 8°C (47°F), this humidity feels like a thick, damp blanket wrapping around you, making even short walks feel heavy and uninviting for travel.

October Average Humidity in Arlington Heights

This chart illustrates the average monthly humidity levels in Arlington Heights, 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 Arlington Heights is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%88%86%82%82%85%77%76%88%88%89%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Arlington Heights

In Arlington Heights in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Arlington Heights.

Maximum UV Index Levels in Arlington Heights for October

The chart shows the monthly maximum UV Index (UVI) for Arlington Heights 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 Arlington Heights typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987531
Data source: Arlington Heights 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 Arlington Heights Compares to Other Months

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

This table compares monthly weather conditions in Arlington Heights, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)314 mm (12.4 inches)87%low
February Weather2°C (36°F)325 mm (12.8 inches)86%moderate
March Weather5°C (41°F)256 mm (10.1 inches)88%moderate
April Weather8°C (47°F)214 mm (8.4 inches)86%high
May Weather12°C (54°F)113 mm (4.4 inches)82%very high
June Weather15°C (59°F)104 mm (4.1 inches)82%very high
July Weather17°C (63°F)37 mm (1.5 inches)85%very high
August Weather18°C (64°F)38 mm (1.5 inches)77%very high
September Weather14°C (58°F)175 mm (6.9 inches)76%high
October Weather8°C (47°F)302 mm (11.9 inches)88%moderate
November Weather5°C (42°F)404 mm (15.9 inches)88%moderate
December Weather2°C (37°F)365 mm (14.4 inches)89%low

Compare Arlington Heights's Climate with Cities Worldwide