August weather forecast
Oak Forest, IL

englishespañol中文
Share

Weather in August

The last month of the summer, August, is also a moderately hot month in Oak Forest, Illinois, with an average temperature varying between 64.2°F (17.9°C) and 79.9°F (26.6°C).

Temperature

The unfolding of August shows an average high-temperature of a still moderately hot 79.9°F (26.6°C), indicating a slight variance from July's 81.9°F (27.7°C). Oak Forest experiences an average nighttime temperature of 64.2°F (17.9°C) in the month of August.

Humidity

In Oak Forest, the average relative humidity in August is 78%.

Rainfall

In Oak Forest, Illinois, in August, during 10.8 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, in Oak Forest, there are 111.8 rainfall days, and 11.18" (284mm) of precipitation is accumulated.

Snowfall

In Oak Forest, Illinois, snow does not fall in May through September.

Daylight

In Oak Forest, the average length of the day in August is 13h and 48min.
On the first day of the month, sunrise is at 5:46 am and sunset at 8:08 pm. On the last day of August, sunrise is at 6:16 am and sunset at 7:25 pm CDT.

Sunshine

August has the most sunshine of the year, with an average of 10h of sunshine.

UV index

The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: During August, 5 as the daily maximum UV index converts into the following advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
[Resources]

Frequently asked questions

What is the usual temperature for Oak Forest in August?

In August, the average high-temperature and low-temperature in Oak Forest are 79.9°F (26.6°C) and 64.2°F (17.9°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is estimated at 87.8°F (31°C).

What is the average humidity in August in Oak Forest?

In Oak Forest, the average relative humidity in August is 78%.

How many days does it rain in August in Oak Forest?

In Oak Forest, during August, the rain falls for 10.8 days and regularly aggregates up to 1.06" (27mm) of precipitation.

When it does not snow in Oak Forest?

In Oak Forest, Illinois, snow does not fall in May through September.

How many hours of daylight does Oak Forest have in August?

In Oak Forest, Illinois, the average day length in August is 13h and 48min.

What time are sunrise and sunset in August in Oak Forest?

In August, on the first day of the month, sunrise is at 5:46 am and sunset at 8:08 pm. On the last day of the month, in Oak Forest, sunrise is at 6:16 am and sunset at 7:25 pm CDT.

What month has the most sunshine in Oak Forest?

The month with the most sunshine is August, with an average of 10h of sunshine.

How many hours of sunshine does Oak Forest have in August?

The average sunshine duration in August is 10h.

What is the UV index reading in August in Oak Forest?

The average daily maximum UV index in August in Oak Forest, Illinois, is 5. A UV Index of 3 to 5 symbolizes a moderate health threat 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 August
Oak Forest, IL

Average temperature in August - Oak Forest, IL
  • Average high temperature in August: 79.9°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in August: 64.2°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

[Resources]

Average pressure in August
Oak Forest, IL

Average pressure in August - Oak Forest, 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
Oak Forest, IL

Average wind speed in August - Oak Forest, IL
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

[Resources]

Average humidity in August
Oak Forest, IL

Average humidity in August - Oak Forest, IL
  • Average humidity in August: 78%

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

[Resources]

Average rainfall in August
Oak Forest, IL

Average rainfall in August - Oak Forest, IL
  • Average rainfall in August: 1.06"

The wettest month (with the highest rainfall) is May (1.54").
The driest months (with the least rainfall) are January, February and December (0.55").

[Resources]

Average rainfall days in August
Oak Forest, IL

Average rainfall days in August - Oak Forest, IL
  • Average rainfall days in August: 10.8 days

The month with the highest number of rainy days is July (14.1 days).
The month with the least rainy days is February (4.1 days).

[Resources]

Average snowfall in August
Oak Forest, IL

Average snowfall in August - Oak Forest, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.3").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in August
Oak Forest, IL

Average snowfall days in August - Oak Forest, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

Average daylight in August /
Average sunshine in August
Oak Forest, IL

Average daylight in August / Average sunshine in August - Oak Forest, IL
  • Average daylight in August: 13h 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 August: 10h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

[Resources]

Average sunshine days in August
Oak Forest, IL

Average sunshine days in August - Oak Forest, IL
  • Average sunshine days in August: 15.3 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is June (13.1 days).

[Resources]

Average UV index in August
Oak Forest, IL

Average UV index in August - Oak Forest, IL
  • Average UV index in August: 5

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).

[Resources]

Average cloud cover in August
Oak Forest, IL

Average cloud cover in August - Oak Forest, IL
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).

[Resources]

Average visibility in August
Oak Forest, IL

Average visibility in August - Oak Forest, IL
  • Average visibility in August: 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).

[Resources]

Oak Forest, Illinois, USA

Weather forecast for your location

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