August weather forecast
Thebes, IL

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Weather in August

August, the last month of the summer in Thebes, is another hot month, with an average temperature fluctuating between 67.1°F (19.5°C) and 86.2°F (30.1°C).

Temperature

Thebes's transition from July to August introduces an average high-temperature of a still hot 86.2°F (30.1°C), marking an insignificant variation from the 88.3°F (31.3°C). The average temperature drops to a refreshing 67.1°F (19.5°C) during the night in the month of August.

Heat index

In August, the heat index is appraised at a torrid 98.6°F (37°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Consider that heat index readings are for situations in the shade and light wind. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In August, the average relative humidity is 76%.

Rainfall

In Thebes, during August, the rain falls for 14.4 days and regularly aggregates up to 2.72" (69mm) of precipitation. In Thebes, during the entire year, the rain falls for 158.6 days and collects up to 35.59" (904mm) of precipitation.

Snowfall

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

Daylight

In Thebes, Illinois, the average length of the day in August is 13h and 33min.
On the first day of August, sunrise is at 6:03 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:27 pm CDT.

Sunshine

In Thebes, the average sunshine in August is 10.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: An average UV index of 6 in August transforms into this advice:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

The high-temperature, in August, in Thebes, is 86.2°F (30.1°C), while the low-temperature averages to 67.1°F (19.5°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is appraised at 98.6°F (37°C).

What is the average humidity in August?

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

How many days does it rain in August?

In Thebes, in August, during 14.4 rainfall days, 2.72" (69mm) of precipitation is typically accumulated.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in August?

In Thebes, the average day length in August is 13h and 33min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:03 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:27 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August is 10.4h.

What is the month with the highest UV index?

May 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?

The average daily maximum UV index in August in Thebes, Illinois, 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
Thebes, IL

Average temperature in August - Thebes, IL
  • Average high temperature in August: 86.2°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in August: 67.1°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

Average pressure in August
Thebes, IL

Average pressure in August - Thebes, 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
Thebes, IL

Average wind speed in August - Thebes, IL
  • Average wind speed in August: 5.7mph

The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in August
Thebes, IL

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

The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is October (69%).

Average rainfall in August
Thebes, IL

Average rainfall in August - Thebes, IL
  • Average rainfall in August: 2.72"

The wettest month (with the highest rainfall) is April (4.33").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in August
Thebes, IL

Average rainfall days in August - Thebes, IL
  • Average rainfall days in August: 14.4 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in August
Thebes, IL

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

The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Thebes, IL

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

The month with the highest number of snowfall days is January (3.7 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
Thebes, IL

Average daylight in August / Average sunshine in August - Thebes, IL
  • Average daylight in August: 13h and 3min

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 42min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in August
Thebes, IL

Average sunshine days in August - Thebes, IL
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (11.9 days).

Average UV index in August
Thebes, IL

Average UV index in August - Thebes, 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
Thebes, IL

Average cloud cover in August - Thebes, IL
  • Average cloud cover in August: 27

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June, August and September (Cloud cover 27).

Average visibility in August
Thebes, IL

Average visibility in August - Thebes, 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).

Thebes, Illinois, USA

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