August weather forecast
Lisle, IL

Share

Weather in August

The last month of the summer, August, is also a moderately hot month in Lisle, Illinois, with an average temperature fluctuating between 64°F (17.8°C) and 80.4°F (26.9°C).

Temperature

With August's arrival, Lisle's weather records an average high-temperature of a still moderately hot 80.4°F (26.9°C), marking little difference from July's 82°F (27.8°C). Throughout August, the temperature falls to an average low of 64°F (17.8°C).

Humidity

The average relative humidity in August is 77%.

Rainfall

In Lisle, in August, during 16.6 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. Throughout the year, there are 147.7 rainfall days, and 23.43" (595mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Lisle, the average length of the day in August is 13h and 49min.
On the first day of August in Lisle, sunrise is at 5:47 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:26 pm CDT.

Sunshine

With an average of 10h of sunshine, August has the most sunshine of the year in Lisle.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Lisle. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 6 during August leads to these instructions:
Shield from overexposure. Defense against sun-related harm is required. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
[Resources]

Frequently asked questions

What are August temperatures in Lisle?

The high-temperature, in August, in Lisle, records 80.4°F (26.9°C), while the low-temperature is 64°F (17.8°C). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in July is estimated at 87.8°F (31°C).

What is the average humidity in August in Lisle?

In August, the average relative humidity in Lisle is 77%.

How much does it rain in Lisle in August?

In Lisle, in August, it is raining for 16.6 days, with typically 2.6" (66mm) of accumulated precipitation.

When it does not snow in Lisle?

June through September are months without snowfall in Lisle.

What is the average length of the day in August in Lisle?

In Lisle, the average day length in August is 13h and 49min.

What time are sunrise and sunset in August in Lisle?

In August, on the first day of the month, sunrise is at 5:47 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:26 pm CDT.

What month has the most sunshine in Lisle?

With an average of 10h of sunshine, August has the most sunshine of the year in Lisle, Illinois.

How long on average sun shines in August in Lisle?

In Lisle, Illinois, the average sunshine duration in August is 10h.

When is the highest UV index in Lisle?

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

What is the UV index intensity in August in Lisle?

In Lisle, Illinois, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes 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 August
Lisle, IL

Average temperature in August - Lisle, IL
  • Average high temperature in August: 80.4°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in August: 64°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

[Resources]

Average pressure in August
Lisle, IL

Average pressure in August - Lisle, 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
Lisle, IL

Average wind speed in August - Lisle, IL
  • Average wind speed in August: 6mph

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).

[Resources]

Average humidity in August
Lisle, IL

Average humidity in August - Lisle, IL
  • Average humidity in August: 77%

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
Lisle, IL

Average rainfall in August - Lisle, IL
  • Average rainfall in August: 2.6"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is December (1.1").

[Resources]

Average rainfall days in August
Lisle, IL

Average rainfall days in August - Lisle, IL
  • Average rainfall days in August: 16.6 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (5.4 days).

[Resources]

Average snowfall in August
Lisle, IL

Average snowfall in August - Lisle, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (3.23").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in August
Lisle, IL

Average snowfall days in August - Lisle, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in August /
Average sunshine in August
Lisle, IL

Average daylight in August / Average sunshine in August - Lisle, IL
  • Average daylight in August: 13h 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 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
Lisle, IL

Average sunshine days in August - Lisle, IL
  • Average sunshine days in August: 10.7 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (9.8 days).

[Resources]

Average UV index in August
Lisle, IL

Average UV index in August - Lisle, IL
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

[Resources]

Average cloud cover in August
Lisle, IL

Average cloud cover in August - Lisle, IL
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).

[Resources]

Average visibility in August
Lisle, IL

Average visibility in August - Lisle, IL
  • Average visibility in August: 6mi

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

[Resources]

Lisle, Illinois, USA

Weather forecast for your location

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