August weather forecast
South Pekin, IL

Share

Weather in August

The last month of the summer, August, is also a moderately hot month in South Pekin, Illinois, with an average temperature fluctuating between 63.3°F (17.4°C) and 81.3°F (27.4°C).

Temperature

As July transitions into August, South Pekin records an average high-temperature of a still moderately hot 81.3°F (27.4°C), showing a gentle shift from the preceding month. South Pekin's nighttime temperature in August falls to an average of 63.3°F (17.4°C).

Heat index

During August, the heat index is calculated to be a tropical 87.8°F (31°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.
Factoring in the heat index, values are geared towards shaded areas with light breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

In South Pekin, the average relative humidity in August is 81%.

Rainfall

In South Pekin, in August, during 14.4 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. Throughout the year, there are 153.3 rainfall days, and 29.61" (752mm) of precipitation is accumulated.

Snowfall

In South Pekin, snow does not fall in May through September.

Daylight

The average length of the day in August is 13h and 44min.
On the first day of the month, sunrise is at 5:56 am and sunset at 8:13 pm. On the last day of August, sunrise is at 6:25 am and sunset at 7:31 pm CDT.

Sunshine

In South Pekin, the average sunshine in August is 9.9h.

UV index

In South Pekin, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In August, the maximum UV index of 5 translates into these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Around midday, solar radiation is most harmful; hence, exposure should be limited. Tightly woven clothing, when worn loosely, shields effectively against the Sun.

Frequently asked questions

What is the average August temperature?

The high-temperature, in August, in South Pekin, is 81.3°F (27.4°C), while the low-temperature averages to 63.3°F (17.4°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity is 81%.

How many days does it rain in August?

In August, the rain falls for 14.4 days. Throughout August, 2.17" (55mm) of precipitation is accumulated.

When it does not snow?

In South Pekin, snow does not fall in May through September.

How many hours of daylight does South Pekin have in August?

In South Pekin, the average day length in August is 13h and 44min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 5:56 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:31 pm CDT.

How many hours of sunshine does South Pekin have in August?

In South Pekin, the average sunshine duration in August is 9.9h.

What is the UV index intensity in August?

In August, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium 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 Pekin, IL

Average temperature in August - South Pekin, 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 (31.3°F).

  • Average low temperature in August: 63.3°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in August
South Pekin, IL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
South Pekin, IL

Average wind speed in August - South Pekin, IL
  • Average wind speed in August: 6.5mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in August
South Pekin, IL

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

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
South Pekin, IL

Average rainfall in August - South Pekin, IL
  • Average rainfall in August: 2.17"

The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is December (1.54").

Average rainfall days in August
South Pekin, IL

Average rainfall days in August - South Pekin, IL
  • Average rainfall days in August: 14.4 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (6.3 days).

Average snowfall in August
South Pekin, IL

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

The month with the highest snowfall is January (3.86").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
South Pekin, IL

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

The month with the highest number of snowfall days is January (10.6 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
South Pekin, IL

Average daylight in August / Average sunshine in August - South Pekin, 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 18min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in August
South Pekin, IL

Average sunshine days in August - South Pekin, IL
  • Average sunshine days in August: 14.2 days

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is June (10 days).

Average UV index in August
South Pekin, IL

Average UV index in August - South Pekin, IL
  • Average UV index in August: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in August
South Pekin, IL

Average cloud cover in August - South Pekin, IL
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 30).

Average visibility in August
South Pekin, IL

Average visibility in August - South Pekin, 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).

South Pekin, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location