October weather forecast
Island Lake, IL

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Weather in October

October, the same as September, in Island Lake, Illinois, is another mild autumn month, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 59°F (15°C).

Temperature

A decrease in the average high-temperature is observed during October, shifting from a pleasant 72.5°F (22.5°C) in September to a refreshing 59°F (15°C). During October, Island Lake's temperature averages to a chilly 44.2°F (6.8°C) at night.

Humidity

With an average relative humidity of 75%, October is the least humid month.

Rainfall

In Island Lake, during October, the rain falls for 13.7 days and regularly aggregates up to 2.09" (53mm) of precipitation. Throughout the year, in Island Lake, there are 151.2 rainfall days, and 24.17" (614mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Island Lake are January through May, October through December. October is the first month it typically snows in Island Lake. Throughout October, in the average 0.5 snowfall days, it receives 0.08" (2mm) of snow. In Island Lake, during the entire year, snow falls for 48.9 days and aggregates up to 14.76" (375mm) of snow.

Daylight

In Island Lake, the average length of the day in October is 11h and 3min.
On the first day of October, sunrise is at 6:50 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:47 pm CDT.

Sunshine

In October, the average sunshine in Island Lake is 5.5h.

UV index

In Island Lake, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 2 in October interprets into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Island Lake in October?

The high-temperature, in October, in Island Lake, records 59°F (15°C), while the low-temperature is 44.2°F (6.8°C).

What is the least humid month in Island Lake?

With an average relative humidity of 75%, October is the least humid month in Island Lake.

What is the average humidity in October in Island Lake?

In October, the average relative humidity in Island Lake, Illinois, is 75%.

How much does it rain in Island Lake in October?

In October, in Island Lake, Illinois, the rain falls for 13.7 days. Throughout October, 2.09" (53mm) of precipitation is accumulated.

When does it start to snow in Island Lake?

October is the first month it typically snows in Island Lake, Illinois. Throughout October, in the average 0.5 snowfall days, it receives 0.08" (2mm) of snow.

How many hours of daylight does Island Lake have in October?

In October, the average day length is 11h and 3min.

What time are sunrise and sunset in October in Island Lake?

In October, on the first day of the month, sunrise is at 6:50 am and sunset at 6:33 pm. On the last day of the month, in Island Lake, Illinois, sunrise is at 7:25 am and sunset at 5:47 pm CDT.

How long on average sun shines in October in Island Lake?

In Island Lake, the average sunshine duration in October is 5.5h.

What is the UV index intensity in October in Island Lake?

In October, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health threat from exposure to Sun's UV rays.
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
Island Lake, IL

Average temperature in October - Island Lake, IL
  • Average high temperature in October: 59°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in October: 44.2°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

Average pressure in October
Island Lake, IL

Average pressure in October - Island Lake, IL
  • Average pressure in October: 30"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).

Average wind speed in October
Island Lake, IL

Average wind speed in October - Island Lake, IL
  • Average wind speed in October: 8.8mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in October
Island Lake, IL

Average humidity in October - Island Lake, IL
  • Average humidity in October: 75%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (75%).

Average rainfall in October
Island Lake, IL

Average rainfall in October - Island Lake, IL
  • Average rainfall in October: 2.09"

The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is December (1.1").

Average rainfall days in October
Island Lake, IL

Average rainfall days in October - Island Lake, IL
  • Average rainfall days in October: 13.7 days

The month with the highest number of rainy days is July (18.8 days).
The months with the least rainy days are January and February (5.3 days).

Average snowfall in October
Island Lake, IL

Average snowfall in October - Island Lake, IL
  • Average snowfall in October: 0.08"

The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Island Lake, IL

Average snowfall days in October - Island Lake, IL
  • Average snowfall days in October: 0.5 days

The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Island Lake, IL

Average daylight in October / Average sunshine in October - Island Lake, IL
  • Average daylight in October: 11h and 0min

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 6min).

  • Average sunshine in October: 5h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in October
Island Lake, IL

Average sunshine days in October - Island Lake, IL
  • Average sunshine days in October: 14.2 days

The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (10 days).

Average UV index in October
Island Lake, IL

Average UV index in October - Island Lake, IL
  • Average UV index in October: 2

The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in October
Island Lake, IL

Average cloud cover in October - Island Lake, IL
  • Average cloud cover in October: 43

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 31).

Average visibility in October
Island Lake, IL

Average visibility in October - Island Lake, IL
  • Average visibility in October: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).

Island Lake, Illinois, USA

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