August weather forecast
Augusta, IL

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Weather in August

The last month of the summer, August, is another warm month in Augusta, Illinois, with an average temperature ranging between max 82°F (27.8°C) and min 63.7°F (17.6°C).

Temperature

The onset of August brings an average high-temperature of a still warm 82°F (27.8°C), nearly matching the July temperature. In the month of August, Augusta records a consistent average low-temperature of 63.7°F (17.6°C).

Heat index

Throughout August, the heat index is computed to be a tropical 87.8°F (31°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.

Humidity

The average relative humidity in August in Augusta is 79%.

Rainfall

In Augusta, Illinois, in August, during 8.9 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. In Augusta, during the entire year, the rain falls for 94.4 days and collects up to 7.76" (197mm) of precipitation.

Snowfall

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

Daylight

In Augusta, the average length of the day in August is 13h and 43min.
On the first day of August, sunrise is at 6:02 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:36 pm CDT.

Sunshine

In Augusta, Illinois, the average sunshine in August is 10.1h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, the maximum UV index of 6 suggests this advice:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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Frequently asked questions

What are August temperatures in Augusta?

An average high-temperature, in August, in Augusta, is 82°F (27.8°C) and the average low-temperature is 63.7°F (17.6°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is computed to be 87.8°F (31°C).

What is the average humidity in August in Augusta?

In August, the average relative humidity is 79%.

How much does it rain in Augusta in August?

In Augusta, Illinois, in August, during 8.9 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

When it does not snow in Augusta?

May through September are months without snowfall.

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

The average day length in August in Augusta is 13h and 43min.

When are sunrise and sunset in August in Augusta?

In August, on the first day of the month, sunrise is at 6:02 am and sunset at 8:17 pm. On the last day of the month, in Augusta, sunrise is at 6:31 am and sunset at 7:36 pm CDT.

How long on average sun shines in August in Augusta?

The average sunshine duration in August in Augusta is 10.1h.

What is the month with the highest UV index in Augusta?

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

How high is the UV index in August in Augusta?

In Augusta, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents 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
Augusta, IL

Average temperature in August - Augusta, IL
  • Average high temperature in August: 82°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in August: 63.7°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (19°F).

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Average pressure in August
Augusta, IL

Average pressure in August - Augusta, IL
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in August
Augusta, IL

Average wind speed in August - Augusta, IL
  • Average wind speed in August: 6.6mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in August
Augusta, IL

Average humidity in August - Augusta, IL
  • Average humidity in August: 79%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Augusta, IL

Average rainfall in August - Augusta, IL
  • Average rainfall in August: 0.59"

The wettest month (with the highest rainfall) is May (1.1").
The driest month (with the least rainfall) is December (0.35").

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Average rainfall days in August
Augusta, IL

Average rainfall days in August - Augusta, IL
  • Average rainfall days in August: 8.9 days

The month with the highest number of rainy days is May (12.3 days).
The month with the least rainy days is January (3.3 days).

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Average snowfall in August
Augusta, IL

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

The month with the highest snowfall is January (0.67").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Augusta, IL

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

The month with the highest number of snowfall days is January (6.3 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
Augusta, IL

Average daylight in August / Average sunshine in August - Augusta, 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: 10h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in August
Augusta, IL

Average sunshine days in August - Augusta, IL
  • Average sunshine days in August: 18.2 days

The month with the most sunshine days is December (23.5 days).
The month with the least sunshine days is June (13.9 days).

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Average UV index in August
Augusta, IL

Average UV index in August - Augusta, 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).

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Average cloud cover in August
Augusta, IL

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

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in August
Augusta, IL

Average visibility in August - Augusta, 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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Augusta, Illinois, USA

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