August weather forecast
Eagle, IL

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Weather in August

The last month of the summer, August, is another warm month in Eagle, Illinois, with temperature in the range of an average low of 66°F (18.9°C) and an average high of 85.6°F (29.8°C).

Temperature

Transitioning into August, Eagle records an average high-temperature of a warm 85.6°F (29.8°C), almost identical to July's 87.3°F (30.7°C). During August, the temperature in Eagle tends to dip to an average of 66°F (18.9°C) at night.

Heat index

During August, the heat index is computed to be a fiery hot 96.8°F (36°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In Eagle, the average relative humidity in August is 76%.

Rainfall

In August, in Eagle, the rain falls for 13.8 days. Throughout August, 2.52" (64mm) of precipitation is accumulated. In Eagle, Illinois, during the entire year, the rain falls for 158.6 days and collects up to 36.02" (915mm) of precipitation.

Snowfall

May through September are months without snowfall in Eagle.

Daylight

In August, the average length of the day in Eagle is 13h and 34min.
On the first day of the month, sunrise is at 5:58 am and sunset at 8:01 pm. On the last day of August, in Eagle, Illinois, sunrise is at 6:23 am and sunset at 7:23 pm CDT.

Sunshine

The average sunshine in August is 10.3h.

UV index

The months with the highest UV index in Eagle are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

How hot does it get in Eagle in August?

August temperatures in Eagle, Illinois, vary between a high-temperature of 85.6°F (29.8°C) and a low-temperature of 66°F (18.9°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is computed to be 96.8°F (36°C).

What is the average humidity in August in Eagle?

In August, the average relative humidity in Eagle, Illinois, is 76%.

How many days does it rain in August in Eagle?

In Eagle, Illinois, in August, it is raining for 13.8 days, with typically 2.52" (64mm) of accumulated precipitation.

When it does not snow in Eagle?

May through September are months without snowfall.

How many hours of daylight does Eagle have in August?

In Eagle, the average day length in August is 13h and 34min.

When are sunrise and sunset in August in Eagle?

In August, on the first day of the month, sunrise is at 5:58 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:23 pm CDT.

How long on average sun shines in August in Eagle?

In Eagle, Illinois, the average sunshine duration in August is 10.3h.

When is the highest UV index in Eagle?

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

What is the UV index intensity in August in Eagle?

The average daily maximum UV index in August is 6. A UV Index reading 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 August
Eagle, IL

Average temperature in August - Eagle, IL
  • Average high temperature in August: 85.6°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in August: 66°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

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Average pressure in August
Eagle, IL

Average pressure in August - Eagle, IL
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in August
Eagle, IL

Average wind speed in August - Eagle, IL
  • Average wind speed in August: 5.8mph

The windiest months (with the highest average wind speed) are January and February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in August
Eagle, IL

Average humidity in August - Eagle, IL
  • Average humidity in August: 76%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in August
Eagle, IL

Average rainfall in August - Eagle, IL
  • Average rainfall in August: 2.52"

The wettest month (with the highest rainfall) is April (4.8").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days in August
Eagle, IL

Average rainfall days in August - Eagle, IL
  • Average rainfall days in August: 13.8 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is November (9.7 days).

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Average snowfall in August
Eagle, IL

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

The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Eagle, IL

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

The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Eagle, IL
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in August
Eagle, IL

Average sunshine days in August - Eagle, IL
  • Average sunshine days in August: 15 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (9.9 days).

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Average UV index in August
Eagle, IL

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

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in August
Eagle, IL

Average cloud cover in August - Eagle, IL
  • Average cloud cover in August: 29

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).

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Average visibility in August
Eagle, IL

Average visibility in August - Eagle, 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).

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Eagle, Illinois, USA

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