August weather forecast
South Elgin, IL

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Weather in August

August, the last month of the summer in South Elgin, is also a moderately hot month, with an average temperature varying between 62.2°F (16.8°C) and 79°F (26.1°C).

Temperature

South Elgin records a slight change with August's average high-temperatures adjusting to a still warm 79°F (26.1°C) from July's 80.6°F (27°C). During August, South Elgin sees a mean low-temperature of 62.2°F (16.8°C).

Humidity

The average relative humidity in August is 81%.

Rainfall

In South Elgin, in August, during 17 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, there are 149.2 rainfall days, and 24.02" (610mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in August is 13h and 49min.
On the first day of August, sunrise is at 5:47 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:27 pm CDT.

Sunshine

The average sunshine in August is 9.6h.

UV index

The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 6 during August translates into these guidelines:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August?

An average high-temperature, in August, in South Elgin, is 79°F (26.1°C) and the average low-temperature is 62.2°F (16.8°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in July is calculated to be 86°F (30°C).

What is the average humidity in August?

The average relative humidity in August is 81%.

How much does it rain in August?

In South Elgin, in August, it is raining for 17 days, with typically 2.68" (68mm) of accumulated precipitation.

When it does not snow?

In South Elgin, Illinois, snow does not fall in June through September.

What is the average length of the day in August in South Elgin?

In August, the average day length is 13h and 49min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 5:47 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:27 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August is 9.6h.

When is the highest UV index?

July and August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in August?

In South Elgin, Illinois, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's 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
South Elgin, IL

Average temperature in August - South Elgin, IL
  • Average high temperature in August: 79°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in August: 62.2°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

Average pressure in August
South Elgin, IL

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
South Elgin, IL

Average wind speed in August - South Elgin, IL
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in August
South Elgin, IL

Average humidity in August - South Elgin, IL
  • Average humidity in August: 81%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).

Average rainfall in August
South Elgin, IL

Average rainfall in August - South Elgin, IL
  • Average rainfall in August: 2.68"

The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is December (1.1").

Average rainfall days in August
South Elgin, IL

Average rainfall days in August - South Elgin, IL
  • Average rainfall days in August: 17 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in August
South Elgin, IL

Average snowfall in August - South Elgin, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (3.62").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
South Elgin, IL

Average snowfall days in August - South Elgin, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
South Elgin, IL

Average daylight in August / Average sunshine in August - South Elgin, IL
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in August
South Elgin, IL

Average sunshine days in August - South Elgin, IL
  • Average sunshine days in August: 10.3 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.1 days).

Average UV index in August
South Elgin, IL

Average UV index in August - South Elgin, IL
  • Average UV index in August: 6

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in August
South Elgin, IL

Average cloud cover in August - South Elgin, IL
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 33).

Average visibility in August
South Elgin, IL

Average visibility in August - South Elgin, IL
  • Average visibility in August: 6mi

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

South Elgin, Illinois, USA

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