August weather forecastTinley Park, IL
August
Weather in August
August does not depart from the summer trend following July closely in Tinley Park. The city continues to bask in warmth with pleasant evenings offering a relief from the daytime heat. The short and unpredictable showers add charm to the landscape blooming vivaciously. August being comfortably warm, experiences mercury levels floating between a high of 79.9°F (26.6°C) and a low of 64.2°F (17.9°C).Temperature
August's average high-temperature stands at a still moderately hot 79.9°F (26.6°C), showing little deviation from July's 81.9°F (27.7°C). Tinley Park cools down to an average low-temperature of 64.2°F (17.9°C) throughout the month of August.Humidity
In August, the average relative humidity is 78%.Rainfall
In August, the rain falls for 10.8 days. Throughout August, 1.06" (27mm) of precipitation is accumulated. In Tinley Park, during the entire year, the rain falls for 111.8 days and collects up to 11.18" (284mm) of precipitation.Snowfall
In Tinley Park, snow does not fall in May through September.Daylight
In August, the average length of the day 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 6:17 am and sunset at 7:25 pm CDT.
Sunshine
With an average of 10h of sunshine, August has the most sunshine of the year.UV index
In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In August, a daily UV index of 5 turns into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. To protect against the Sun's most potent rays, avoid direct exposure around midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Tinley Park, 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).
Average pressure in August
Tinley Park, 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).
Average wind speed in August
Tinley Park, 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).
Average humidity in August
Tinley Park, 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%).
Average rainfall in August
Tinley Park, 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").
Average rainfall days in August
Tinley Park, 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).
Average snowfall in August
Tinley Park, 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").
Average snowfall days in August
Tinley Park, 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).
Average daylight in August /
Average sunshine in August
Tinley Park, IL
- Average daylight in August: 13h and 48min
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).
Average sunshine days in August
Tinley Park, 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).
Average UV index in August
Tinley Park, 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).
Average cloud cover in August
Tinley Park, 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).
Average visibility in August
Tinley Park, 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).





