July weather forecast
Oakbrook Terrace, IL

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Weather in July

July, the same as June, is a moderately hot summer month in Oakbrook Terrace, Illinois, with temperature in the range of an average high of 82.2°F (27.9°C) and an average low of 66.2°F (19°C).

Temperature

Oakbrook Terrace's July weather, marked by an average high temperature of 82.2°F (27.9°C) and an average low temperature of 66.2°F (19°C), is the warmest in the year.

Heat index

The average heat index in July is estimated at a tropical 87.8°F (31°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

In July, the average relative humidity is 76%.

Rainfall

In Oakbrook Terrace, in July, during 17.7 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. In Oakbrook Terrace, during the entire year, the rain falls for 147.3 days and collects up to 23.86" (606mm) of precipitation.

Snowfall

June through September are months without snowfall in Oakbrook Terrace.

Daylight

In July, the average length of the day is 14h and 52min.
On the first day of July, sunrise is at 5:21 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:10 pm CDT.

Sunshine

The months with the most sunshine are July and August, with an average of 9.9h of sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In July, an average UV index of 6 transforms into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest?

Temperature records mark July as the warmest month, with highs averaging 82.2°F (27.9°C) and lows at 66.2°F (19°C).

What is the average July temperature?

An average high-temperature, in July, in Oakbrook Terrace, is 82.2°F (27.9°C) and the average low-temperature is 66.2°F (19°C). In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is estimated at 87.8°F (31°C).

What is the average humidity in July in Oakbrook Terrace?

In Oakbrook Terrace, the average relative humidity in July is 76%.

How many days does it rain in July?

In Oakbrook Terrace, in July, during 17.7 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

When it does not snow in Oakbrook Terrace?

June through September are months without snowfall.

How many hours of daylight does Oakbrook Terrace have in July?

In July, the average day length is 14h and 52min.

When are sunrise and sunset in July?

On the first day of July, sunrise is at 5:21 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:10 pm CDT.

What are the months with the most sunshine?

July and August, with an average of 9.9h of sunshine, are months with the most sunshine.

How long on average sun shines in July?

In Oakbrook Terrace, the average sunshine duration in July is 9.9h.

What are the months with the highest UV index?

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

What is the UV index reading in July?

In July, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
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 July
Oakbrook Terrace, IL

Average temperature in July - Oakbrook Terrace, IL
  • Average high temperature in July: 82.2°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (28.6°F).

  • Average low temperature in July: 66.2°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in July
Oakbrook Terrace, IL

Average pressure in July - Oakbrook Terrace, IL
  • Average pressure in July: 29.97"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 July
Oakbrook Terrace, IL

Average wind speed in July - Oakbrook Terrace, IL
  • Average wind speed in July: 6.3mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity in July
Oakbrook Terrace, IL

Average humidity in July - Oakbrook Terrace, IL
  • Average humidity in July: 76%

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

Average rainfall in July
Oakbrook Terrace, IL

Average rainfall in July - Oakbrook Terrace, IL
  • Average rainfall in July: 2.76"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.14").

Average rainfall days in July
Oakbrook Terrace, IL

Average rainfall days in July - Oakbrook Terrace, IL
  • Average rainfall days in July: 17.7 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (5.5 days).

Average snowfall in July
Oakbrook Terrace, IL

Average snowfall in July - Oakbrook Terrace, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is February (3.62").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Oakbrook Terrace, IL

Average snowfall days in July - Oakbrook Terrace, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Oakbrook Terrace, IL

Average daylight in July / Average sunshine in July - Oakbrook Terrace, IL
  • Average daylight in July: 14h 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 July: 9h and 5min

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

Average sunshine days in July
Oakbrook Terrace, IL

Average sunshine days in July - Oakbrook Terrace, IL
  • Average sunshine days in July: 10.2 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is July (10.2 days).

Average UV index in July
Oakbrook Terrace, IL

Average UV index in July - Oakbrook Terrace, IL
  • Average UV index in July: 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).

Average cloud cover in July
Oakbrook Terrace, IL

Average cloud cover in July - Oakbrook Terrace, IL
  • Average cloud cover in July: 32

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 32).

Average visibility in July
Oakbrook Terrace, IL

Average visibility in July - Oakbrook Terrace, IL
  • Average visibility in July: 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).

Oakbrook Terrace, Illinois, USA

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