August weather forecast
Lake Fork, IL

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Weather in August

August, the last month of the summer in Lake Fork, is also a moderately hot month, with an average temperature fluctuating between 63.9°F (17.7°C) and 81.3°F (27.4°C).

Temperature

The advent of August observes an average high-temperature of a still moderately hot 81.3°F (27.4°C), nearly identical to July's 82°F (27.8°C). August nights experience a consistent temperature drop to an enjoyable 63.9°F (17.7°C).

Heat index

The heat index value for August is appraised at a hot 87.8°F (31°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.
The standards for the heat index are set for locations in shade and under light breezes. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

In August, the average relative humidity is 82%.

Rainfall

In Lake Fork, in August, it is raining for 14.3 days, with typically 2.13" (54mm) of accumulated precipitation. In Lake Fork, during the entire year, the rain falls for 141.8 days and collects up to 22.24" (565mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Lake Fork, the average length of the day in August is 13h and 42min.
On the first day of August, sunrise is at 5:56 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:29 pm CDT.

Sunshine

In August, the average sunshine is 9.7h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 6 during August leads to these instructions:
Shield from overexposure. Defense against sun-related harm is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in August?

In August, the average high-temperature and low-temperature are 81.3°F (27.4°C) and 63.9°F (17.7°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in August is appraised at 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity in Lake Fork is 82%.

How many days does it rain in August in Lake Fork?

In August, the rain falls for 14.3 days. Throughout August, 2.13" (54mm) of precipitation is accumulated.

When it does not snow?

In Lake Fork, Illinois, snow does not fall in May through October.

How many hours of daylight does Lake Fork have in August?

The average day length in August is 13h and 42min.

When is the sunrise / sunset in August in Lake Fork?

In August, on the first day of the month, sunrise is at 5:56 am and sunset at 8:10 pm. On the last day of the month, in Lake Fork, sunrise is at 6:25 am and sunset at 7:29 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August is 9.7h.

What are the months with the highest UV index?

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

How high is the UV index in August?

In August, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.
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
Lake Fork, IL

Average temperature in August - Lake Fork, IL
  • Average high temperature in August: 81.3°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in August: 63.9°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 (20.5°F).

Average pressure in August
Lake Fork, IL

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
Lake Fork, IL

Average wind speed in August - Lake Fork, IL
  • Average wind speed in August: 6.3mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in August
Lake Fork, IL

Average humidity in August - Lake Fork, IL
  • Average humidity in August: 82%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Lake Fork, IL

Average rainfall in August - Lake Fork, IL
  • Average rainfall in August: 2.13"

The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is December (1.1").

Average rainfall days in August
Lake Fork, IL

Average rainfall days in August - Lake Fork, IL
  • Average rainfall days in August: 14.3 days

The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and February (6.3 days).

Average snowfall in August
Lake Fork, IL

Average snowfall in August - Lake Fork, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Lake Fork, IL

Average snowfall days in August - Lake Fork, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in August /
Average sunshine in August
Lake Fork, IL

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in August
Lake Fork, IL

Average sunshine days in August - Lake Fork, IL
  • Average sunshine days in August: 13.1 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in August
Lake Fork, IL

Average UV index in August - Lake Fork, 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).

Average cloud cover in August
Lake Fork, IL

Average cloud cover in August - Lake Fork, IL
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are June and September (Cloud cover 31).

Average visibility in August
Lake Fork, IL

Average visibility in August - Lake Fork, IL
  • Average visibility in August: 5mi

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

Lake Fork, Illinois, USA

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