July weather forecast
Mokena, IL

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Weather in July

July, like June, in Mokena, Illinois, is a moderately hot summer month, with an average temperature fluctuating between 81.7°F (27.6°C) and 64.9°F (18.3°C).

Temperature

July brings the highest temperatures, with an average high of 81.7°F (27.6°C) and an average low of 64.9°F (18.3°C).

Heat index

Throughout July, the heat index is computed to be a hot 87.8°F (31°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.
Understand that the heat index values take into account shaded locations and mild winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.

Humidity

In Mokena, Illinois, the average relative humidity in July is 81%.

Rainfall

In Mokena, during July, the rain falls for 17.3 days and regularly aggregates up to 3.23" (82mm) of precipitation. Throughout the year, there are 149.8 rainfall days, and 31.26" (794mm) of precipitation is accumulated.

Snowfall

In Mokena, snow does not fall in May through September.

Daylight

In July, the average length of the day is 14h and 50min.
On the first day of the month, sunrise is at 5:21 am and sunset at 8:29 pm. On the last day of July, sunrise is at 5:46 am and sunset at 8:09 pm CDT.

Sunshine

The average sunshine in July is 9.4h.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In July, the average maximum UV index of 6 translates into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year?

The temperatures reach their highest averages in July, with highs of 81.7°F (27.6°C) and lows of 64.9°F (18.3°C).

What are July temperatures?

An average high-temperature, in July, in Mokena, is 81.7°F (27.6°C) and the average low-temperature is 64.9°F (18.3°C). In July, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 87.8°F (31°C).

What is the average humidity in July?

The average relative humidity in July is 81%.

How many days does it rain in July?

In July, the rain falls for 17.3 days. Throughout July, 3.23" (82mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

How many hours of daylight does Mokena have in July?

In July, the average day length is 14h and 50min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:21 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:09 pm CDT.

How many hours of sunshine does Mokena have in July?

The average sunshine duration in July is 9.4h.

When is the highest UV index?

The months with the highest UV index are June and July, with an average maximum UV index of 6.

What is the UV index intensity in July in Mokena?

In July, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's 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
Mokena, IL

Average temperature in July - Mokena, IL
  • Average high temperature in July: 81.7°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in July: 64.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

Average pressure in July
Mokena, IL

Average pressure in July - Mokena, 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
Mokena, IL

Average wind speed in July - Mokena, IL
  • Average wind speed in July: 6.2mph

The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in July
Mokena, IL

Average humidity in July - Mokena, IL
  • Average humidity in July: 81%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).

Average rainfall in July
Mokena, IL

Average rainfall in July - Mokena, IL
  • Average rainfall in July: 3.23"

The wettest month (with the highest rainfall) is May (4.21").
The driest months (with the least rainfall) are February and December (1.61").

Average rainfall days in July
Mokena, IL

Average rainfall days in July - Mokena, IL
  • Average rainfall days in July: 17.3 days

The months with the highest number of rainy days are June and July (17.3 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in July
Mokena, IL

Average snowfall in July - Mokena, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Mokena, IL

Average snowfall days in July - Mokena, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Mokena, IL

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in July: 9h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in July
Mokena, IL

Average sunshine days in July - Mokena, IL
  • Average sunshine days in July: 11.1 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is April (10.7 days).

Average UV index in July
Mokena, IL

Average UV index in July - Mokena, IL
  • Average UV index in July: 6

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

Average cloud cover in July
Mokena, IL

Average cloud cover in July - Mokena, IL
  • Average cloud cover in July: 36

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in July
Mokena, IL

Average visibility in July - Mokena, IL
  • Average visibility in July: 5mi

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

Mokena, Illinois, USA

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