July weather forecast
Oak Park, IL

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Weather in July

July witnesses the peak of summer heat in Oak Park, with the highest average temperature registering at 79.7°F (26.5°C). The hot summer in Illinois is often balmy and bright, punctuated only by occasional thunderstorms. The city hums with lively summer activities and the atmosphere pulsates with high energy. Cone-bearing trees flourish under the generous sunshine and the parks brim with locals and tourists alike. From BBQ parties to music festivals, July in Oak Park is the epitome of summer merriment.

Temperature

In Oak Park, the average temperatures in July are the highest, with a peak at 79.7°F (26.5°C) and a low of 67.5°F (19.7°C).

Humidity

The average relative humidity in July in Oak Park is 76%.

Rainfall

In Oak Park, in July, during 18.5 rainfall days, 3.74" (95mm) of precipitation is typically accumulated. Throughout the year, in Oak Park, there are 157.8 rainfall days, and 33.7" (856mm) of precipitation is accumulated.

Snowfall

In Oak Park, snow does not fall in June through September.

Daylight

In July, the average length of the day is 14h and 52min.
On the first day of the month, sunrise is at 5:20 am and sunset at 8:30 pm. On the last day of July, sunrise is at 5:44 am and sunset at 8:10 pm CDT.

Sunshine

In July, the average sunshine in Oak Park is 10.4h.

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 health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 6 during July translates into the following directions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest in Oak Park?

July, with its average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 67.5°F (19.7°C), holds the record as the warmest month.

What is the average July temperature in Oak Park?

The high-temperature, in July, in Oak Park, is 79.7°F (26.5°C), while the low-temperature averages to 67.5°F (19.7°C).

What is the average humidity in July in Oak Park?

In Oak Park, the average relative humidity in July is 76%.

How many days does it rain in July in Oak Park?

In Oak Park, during July, the rain falls for 18.5 days and regularly aggregates up to 3.74" (95mm) of precipitation.

When it does not snow in Oak Park?

In Oak Park, Illinois, snow does not fall in June through September.

How many hours of daylight does Oak Park have in July?

In Oak Park, Illinois, the average day length in July is 14h and 52min.

When is the sunrise / sunset in July in Oak Park?

In July, on the first day of the month, sunrise is at 5:20 am and sunset at 8:30 pm. On the last day of the month, in Oak Park, Illinois, sunrise is at 5:44 am and sunset at 8:10 pm CDT.

How many hours of sunshine does Oak Park have in July?

In July, the average sunshine duration in Oak Park, Illinois, is 10.4h.

What are the months with the highest UV index in Oak Park?

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

What is the UV index reading in July in Oak Park?

The average daily maximum UV index in July in Oak Park is 6. A UV Index estimate of 6 to 7 represents 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
Oak Park, IL

Average temperature in July - Oak Park, IL
  • Average high temperature in July: 79.7°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in July: 67.5°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

Average pressure in July
Oak Park, IL

Average pressure in July - Oak Park, 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
Oak Park, IL

Average wind speed in July - Oak Park, IL
  • Average wind speed in July: 7mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity in July
Oak Park, IL

Average humidity in July - Oak Park, IL
  • Average humidity in July: 76%

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

Average rainfall in July
Oak Park, IL

Average rainfall in July - Oak Park, IL
  • Average rainfall in July: 3.74"

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is December (1.57").

Average rainfall days in July
Oak Park, IL

Average rainfall days in July - Oak Park, IL
  • Average rainfall days in July: 18.5 days

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (5.1 days).

Average snowfall in July
Oak Park, IL

Average snowfall in July - Oak Park, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Oak Park, IL

Average snowfall days in July - Oak Park, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Oak Park, IL

Average daylight in July / Average sunshine in July - Oak Park, 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: 10h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in July
Oak Park, IL

Average sunshine days in July - Oak Park, IL
  • Average sunshine days in July: 9.9 days

The month with the most sunshine days is December (16.7 days).
The month with the least sunshine days is July (9.9 days).

Average UV index in July
Oak Park, IL

Average UV index in July - Oak Park, 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
Oak Park, IL

Average cloud cover in July - Oak Park, IL
  • Average cloud cover in July: 28

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in July
Oak Park, IL

Average visibility in July - Oak Park, IL
  • Average visibility in July: 6mi

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

Oak Park, Illinois, USA

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