October weather forecast
Forest Park, IL

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Weather in October

October, like September, is a moderate autumn month in Forest Park, Illinois, with an average temperature ranging between max 59.9°F (15.5°C) and min 47.8°F (8.8°C).

Temperature

Transition from September to October is accompanied by a temperature drop, with average high-temperatures decreasing from a pleasant 72.1°F (22.3°C) to a moderate 59.9°F (15.5°C). October in Forest Park, Illinois, generally records an average low-temperature of 47.8°F (8.8°C).

Humidity

The least humid month in Forest Park is October, with an average relative humidity of 72%.

Rainfall

In Forest Park, in October, during 13.6 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, in Forest Park, there are 157.8 rainfall days, and 33.7" (856mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Forest Park. October is the first month it typically snows. Throughout October, in the average 0.2 snowfall days, it receives 0.31" (8mm) of snow. Throughout the year, there are 40.3 snowfall days, and 16.81" (427mm) of snow is accumulated.

Daylight

In October, the average length of the day in Forest Park is 11h and 4min.
On the first day of the month, sunrise is at 6:48 am and sunset at 6:32 pm. On the last day of October, in Forest Park, Illinois, sunrise is at 7:23 am and sunset at 5:46 pm CDT.

Sunshine

The average sunshine in October in Forest Park is 5.8h.

UV index

The average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 2 in October transforms into the following instructions:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Frequently asked questions

What is the usual temperature for Forest Park in October?

The high-temperature, in October, in Forest Park, is 59.9°F (15.5°C), while the low-temperature averages to 47.8°F (8.8°C).

What is the least humid month in Forest Park?

The least humid month is October, with an average relative humidity of 72%.

What is the average humidity in October in Forest Park?

In Forest Park, Illinois, the average relative humidity in October is 72%.

How many days does it rain in October in Forest Park?

In Forest Park, Illinois, during October, the rain falls for 13.6 days and regularly aggregates up to 2.68" (68mm) of precipitation.

When does it start to snow in Forest Park?

October is the first month it typically snows. Throughout October, in the average 0.2 snowfall days, it receives 0.31" (8mm) of snow.

How many hours of daylight does Forest Park have in October?

The average day length in October in Forest Park, Illinois, is 11h and 4min.

What time are sunrise and sunset in October in Forest Park?

In October, on the first day of the month, sunrise is at 6:48 am and sunset at 6:32 pm. On the last day of the month, in Forest Park, Illinois, sunrise is at 7:23 am and sunset at 5:46 pm CDT.

How long on average sun shines in October in Forest Park?

In October, the average sunshine duration is 5.8h.

What is the UV index reading in October in Forest Park?

In Forest Park, Illinois, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Forest Park, IL

Average temperature in October - Forest Park, IL
  • Average high temperature in October: 59.9°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in October: 47.8°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

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Average pressure in October
Forest Park, IL

Average pressure in October - Forest Park, IL
  • Average pressure in October: 30.01"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in October
Forest Park, IL

Average wind speed in October - Forest Park, IL
  • Average wind speed in October: 10.1mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in October
Forest Park, IL

Average humidity in October - Forest Park, IL
  • Average humidity in October: 72%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in October
Forest Park, IL

Average rainfall in October - Forest Park, IL
  • Average rainfall in October: 2.68"

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is December (1.57").

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Average rainfall days in October
Forest Park, IL

Average rainfall days in October - Forest Park, IL
  • Average rainfall days in October: 13.6 days

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (5.1 days).

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Average snowfall in October
Forest Park, IL

Average snowfall in October - Forest Park, IL
  • Average snowfall in October: 0.31"

The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in October
Forest Park, IL

Average snowfall days in October - Forest Park, IL
  • Average snowfall days in October: 0.2 days

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Forest Park, IL

Average daylight in October / Average sunshine in October - Forest Park, IL
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in October: 5h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in October
Forest Park, IL

Average sunshine days in October - Forest Park, IL
  • Average sunshine days in October: 15.1 days

The month with the most sunshine days is December (16.7 days).
The month with the least sunshine days is July (9.9 days).

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Average UV index in October
Forest Park, IL

Average UV index in October - Forest Park, IL
  • Average UV index in October: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in October
Forest Park, IL

Average cloud cover in October - Forest Park, IL
  • Average cloud cover in October: 42

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in October
Forest Park, IL

Average visibility in October - Forest Park, IL
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Forest Park, Illinois, USA

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