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 an average temperature ranging between min 66°F (18.9°C) and max 85.6°F (29.8°C).

Temperature

The transition from July to August sees an average high-temperature of a warm 85.6°F (29.8°C), indicating a minor variance from the prior month. Throughout August, Eagle experiences a low-temperature average of 66°F (18.9°C).

Heat index

In August, the heat index is computed to be a fiery hot 96.8°F (36°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In August, the average relative humidity is 76%.

Rainfall

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

Snowfall

In Eagle, snow does not fall in May through September.

Daylight

In August, the average length of the day 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, sunrise is at 6:23 am and sunset at 7:23 pm CDT.

Sunshine

The average sunshine in August is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Deflect overexposure. Sun protection is a necessity. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

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

What is the average humidity in August?

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

How much does it rain in August?

In Eagle, during August, the rain falls for 13.8 days and regularly aggregates up to 2.52" (64mm) of precipitation.

When it does not snow in Eagle?

In Eagle, snow does not fall in May through September.

How many hours of daylight does Eagle have in August?

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

What time 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, the average sunshine duration in August is 10.3h.

When is the highest UV index?

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

What is the UV index reading in August?

In Eagle, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Eagle, Illinois, USA

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