August weather forecast
West Chicago, IL

Share

Weather in August

August, the last month of the summer in West Chicago, is also a moderately hot month, with an average temperature ranging between max 79.5°F (26.4°C) and min 62.8°F (17.1°C).

Temperature

On the advent of August, West Chicago's average high-temperature exhibits a minor adjustment to a still warm 79.5°F (26.4°C) from July's 81°F (27.2°C). Throughout August, West Chicago witnesses a consistent average low-temperature of 62.8°F (17.1°C).

Humidity

In August, the average relative humidity is 81%.

Rainfall

In August, the rain falls for 10.6 days. Throughout August, 0.67" (17mm) of precipitation is accumulated. In West Chicago, during the entire year, the rain falls for 101.9 days and collects up to 8.58" (218mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In West Chicago, the average length of the day in August is 13h and 49min.
On the first day of August in West Chicago, sunrise is at 5:47 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:27 pm CDT.

Sunshine

The average sunshine in August is 9.8h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in West Chicago. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A daily high UV index of 6 in August leads to these guidelines:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
[Resources]

Frequently asked questions

What are the temperatures in West Chicago in August?

The average high-temperature, in August, in West Chicago, is 79.5°F (26.4°C), while the average low-temperature is 62.8°F (17.1°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in July is evaluated at 86°F (30°C).

What is the average humidity in August in West Chicago?

The average relative humidity in August is 81%.

How many days does it rain in August in West Chicago?

In West Chicago, Illinois, in August, during 10.6 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

When it does not snow in West Chicago?

May through September are months without snowfall.

How many hours of daylight does West Chicago have in August?

In West Chicago, Illinois, the average day length in August is 13h and 49min.

When is the sunrise / sunset in August in West Chicago?

In August, on the first day of the month, sunrise is at 5:47 am and sunset at 8:10 pm. On the last day of the month, in West Chicago, Illinois, sunrise is at 6:18 am and sunset at 7:27 pm CDT.

How long on average sun shines in August in West Chicago?

The average sunshine duration in August in West Chicago, Illinois, is 9.8h.

When is the highest UV index in West Chicago?

June through August, with an average maximum UV index of 6, are months with the highest UV index in West Chicago, Illinois.

What is the UV index reading in August in West Chicago?

In August, the average daily maximum UV index in West Chicago, Illinois, is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
West Chicago, IL

Average temperature in August - West Chicago, IL
  • Average high temperature in August: 79.5°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in August: 62.8°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

[Resources]

Average pressure in August
West Chicago, IL

Average pressure in August - West Chicago, IL
  • Average pressure in August: 29.98"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).

[Resources]

Average wind speed in August
West Chicago, IL

Average wind speed in August - West Chicago, IL
  • Average wind speed in August: 6.1mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

[Resources]

Average humidity in August
West Chicago, IL

Average humidity in August - West Chicago, IL
  • Average humidity in August: 81%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).

[Resources]

Average rainfall in August
West Chicago, IL

Average rainfall in August - West Chicago, IL
  • Average rainfall in August: 0.67"

The wettest month (with the highest rainfall) is May (1.26").
The driest months (with the least rainfall) are November and December (0.39").

[Resources]

Average rainfall days in August
West Chicago, IL

Average rainfall days in August - West Chicago, IL
  • Average rainfall days in August: 10.6 days

The month with the highest number of rainy days is May (12.4 days).
The month with the least rainy days is January (3.4 days).

[Resources]

Average snowfall in August
West Chicago, IL

Average snowfall in August - West Chicago, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.14").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in August
West Chicago, IL

Average snowfall days in August - West Chicago, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in August /
Average sunshine in August
West Chicago, IL

Average daylight in August / Average sunshine in August - West Chicago, IL
  • Average daylight in August: 13h and 5min

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 August: 9h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

[Resources]

Average sunshine days in August
West Chicago, IL

Average sunshine days in August - West Chicago, IL
  • Average sunshine days in August: 16.4 days

The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (13.3 days).

[Resources]

Average UV index in August
West Chicago, IL

Average UV index in August - West Chicago, IL
  • Average UV index in August: 6

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).

[Resources]

Average cloud cover in August
West Chicago, IL

Average cloud cover in August - West Chicago, IL
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 32).

[Resources]

Average visibility in August
West Chicago, IL

Average visibility in August - West Chicago, IL
  • Average visibility in August: 6mi

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

[Resources]

West Chicago, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location