October Weather in Forest Park, United States

Last updated: June 24, 2025

In October, the average temperature in Forest Park, United States hovers around 19°C (67°F). However, be prepared for a range that can dip to a chilly 0°C (33°F) and soar up to a sizzling 36°C (97°F). Rainfall averages 110 mm (4.3 in) over 8 days, and the humidity level remains high at 78%, adding a balmy touch to your experience.

October Temperature in Forest Park

In October in Forest Park, the average temperature is 19°C (67°F). Maximum temperatures can reach 36°C (97°F), while minimums can drop as low as 0°C (33°F). Be sure to pack for a wide range of weather conditions while traveling!

October Weather in Forest Park: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Forest Park, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Forest Park, October typically has an average temperature of 19°C (67°F), with highs reaching up to 36°C (97°F) and lows dropping to around 0°C (33°F).

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

October Precipitation in Forest Park

In Forest Park in October, the precipitation amount is 110 mm (4.3 in) over a period of 8 days.

October Precipitation Trends in Forest Park

The chart displays monthly precipitation patterns in Forest Park, 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 Forest Park, October typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 8 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 Forest Park

In Forest Park in October humidity is 78%. With an average temperature of 19°C (67°F), this humidity feels like a warm, heavy blanket enveloping you, making traveling feel both sticky and sluggish as you navigate through the day.

October Average Humidity in Forest Park

This chart illustrates the average monthly humidity levels in Forest Park, 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 Forest Park 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 Forest Park

In Forest Park 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 Forest Park.

Maximum UV Index Levels in Forest Park for October

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

Data source: Forest Park 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 Forest Park Compares to Other Months

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

This table compares monthly weather conditions in Forest Park, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	101 mm (4.0 inches)	86%	moderate
February Weather	11°C (52°F)	133 mm (5.2 inches)	84%	high
March Weather	14°C (57°F)	113 mm (4.5 inches)	83%	very high
April Weather	17°C (63°F)	115 mm (4.5 inches)	81%	extreme
May Weather	22°C (72°F)	93 mm (3.7 inches)	81%	extreme
June Weather	25°C (77°F)	116 mm (4.6 inches)	81%	extreme
July Weather	27°C (80°F)	103 mm (4.1 inches)	83%	extreme
August Weather	26°C (79°F)	140 mm (5.5 inches)	81%	very high
September Weather	24°C (76°F)	109 mm (4.3 inches)	82%	very high
October Weather	19°C (67°F)	110 mm (4.3 inches)	78%	very high
November Weather	12°C (53°F)	79 mm (3.1 inches)	86%	high
December Weather	9°C (49°F)	133 mm (5.2 inches)	89%	moderate