July weather forecast
Marquette Heights, IL

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Weather in July

July, like June, in Marquette Heights, Illinois, is another warm summer month, with temperature in the range of an average low of 65.3°F (18.5°C) and an average high of 82°F (27.8°C).

Temperature

July proves to be the warmest month, recording an average peak temperature of 82°F (27.8°C) and a minimum temperature of 65.3°F (18.5°C).

Heat index

July's heat index is computed to be a hot 89.6°F (32°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.
Realize that the values for the heat index are set for shaded places and light winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.

Humidity

The most humid month is July, with an average relative humidity of 84%.

Rainfall

In Marquette Heights, in July, it is raining for 17.8 days, with typically 2.52" (64mm) of accumulated precipitation. In Marquette Heights, during the entire year, the rain falls for 153.3 days and collects up to 29.61" (752mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Marquette Heights, the average length of the day in July is 14h and 44min.
On the first day of July, sunrise is at 5:31 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:14 pm CDT.

Sunshine

The average sunshine in July is 9.9h.

UV index

June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A daily high UV index of 6 in July leads to these guidelines:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest?

During the warmest month in Marquette Heights, July, temperatures average a high of 82°F (27.8°C) and a low of 65.3°F (18.5°C).

What are the temperatures in July?

An average high-temperature, in July, in Marquette Heights, is 82°F (27.8°C) and the average low-temperature is 65.3°F (18.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in July is computed to be 89.6°F (32°C).

What is the most humid month?

With an average relative humidity of 84%, July is the most humid month.

What is the average humidity in July?

The average relative humidity in July is 84%.

How much does it rain in July?

In July, the rain falls for 17.8 days. Throughout July, 2.52" (64mm) of precipitation is accumulated.

When it does not snow?

In Marquette Heights, snow does not fall in May through September.

How many hours of daylight does Marquette Heights have in July?

In July, the average day length is 14h and 44min.

When are sunrise and sunset in July?

On the first day of July, sunrise is at 5:31 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:14 pm CDT.

How long on average sun shines in July?

In July, the average sunshine duration is 9.9h.

When is the highest UV index?

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

What is the UV index reading in July in Marquette Heights?

The average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from 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 July
Marquette Heights, IL

Average temperature in July - Marquette Heights, IL
  • Average high temperature in July: 82°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in July: 65.3°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in July
Marquette Heights, IL

Average pressure in July - Marquette Heights, IL
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in July
Marquette Heights, IL

Average wind speed in July - Marquette Heights, IL
  • Average wind speed in July: 6.6mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in July
Marquette Heights, IL

Average humidity in July - Marquette Heights, IL
  • Average humidity in July: 84%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).

Average rainfall in July
Marquette Heights, IL

Average rainfall in July - Marquette Heights, IL
  • Average rainfall in July: 2.52"

The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is December (1.54").

Average rainfall days in July
Marquette Heights, IL

Average rainfall days in July - Marquette Heights, IL
  • Average rainfall days in July: 17.8 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (6.3 days).

Average snowfall in July
Marquette Heights, IL

Average snowfall in July - Marquette Heights, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is January (3.86").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Marquette Heights, IL

Average snowfall days in July - Marquette Heights, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (10.6 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
Marquette Heights, IL

Average daylight in July / Average sunshine in July - Marquette Heights, IL
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in July: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in July
Marquette Heights, IL

Average sunshine days in July - Marquette Heights, IL
  • Average sunshine days in July: 10.9 days

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is June (10 days).

Average UV index in July
Marquette Heights, IL

Average UV index in July - Marquette Heights, 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, February, November and December (UV index 2).

Average cloud cover in July
Marquette Heights, IL

Average cloud cover in July - Marquette Heights, IL
  • Average cloud cover in July: 32

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 30).

Average visibility in July
Marquette Heights, IL

Average visibility in July - Marquette Heights, IL
  • Average visibility in July: 5mi

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

Marquette Heights, Illinois, USA

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