August weather forecast
Sailor Springs, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Sailor Springs, Illinois, with an average temperature fluctuating between 82.9°F (28.3°C) and 65.7°F (18.7°C).

Temperature

As August takes hold, the average high-temperature is a still warm 82.9°F (28.3°C), nearly mirroring that of the previous month. Throughout August, Sailor Springs encounters an average temperature drop to a comfortable 65.7°F (18.7°C).

Heat index

For August, the heat index is calculated to be a hot 91.4°F (33°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

The average relative humidity in August is 79%.

Rainfall

In Sailor Springs, during August, the rain falls for 15.4 days and regularly aggregates up to 2.91" (74mm) of precipitation. Throughout the year, there are 167.3 rainfall days, and 37.17" (944mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 38min.
On the first day of August in Sailor Springs, sunrise is at 5:55 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:24 pm CDT.

Sunshine

In August, the average sunshine is 10.2h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 6 in August transforms into the following instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. 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. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

In Sailor Springs, 82.9°F (28.3°C) is the average high-temperature and 65.7°F (18.7°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 91.4°F (33°C).

What is the average humidity in August?

In Sailor Springs, the average relative humidity in August is 79%.

How many days does it rain in August?

In August, the rain falls for 15.4 days. Throughout August, 2.91" (74mm) of precipitation is accumulated.

When it does not snow?

In Sailor Springs, snow does not fall in May through September.

What is the average length of the day in August?

The average day length in August is 13h and 38min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:55 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:24 pm CDT.

How many hours of sunshine does Sailor Springs have in August?

The average sunshine duration in August is 10.2h.

When is the highest UV index?

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

What is the UV index intensity in August?

The average daily maximum UV index in August 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
Sailor Springs, IL

Average temperature in August - Sailor Springs, IL
  • Average high temperature in August: 82.9°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in August: 65.7°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in August
Sailor Springs, IL

Average pressure in August - Sailor Springs, 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 (29.93"Hg).

Average wind speed in August
Sailor Springs, IL

Average wind speed in August - Sailor Springs, IL
  • Average wind speed in August: 6mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in August
Sailor Springs, IL

Average humidity in August - Sailor Springs, IL
  • Average humidity in August: 79%

The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Sailor Springs, IL

Average rainfall in August - Sailor Springs, IL
  • Average rainfall in August: 2.91"

The wettest month (with the highest rainfall) is April (4.88").
The driest months (with the least rainfall) are February and September (2.09").

Average rainfall days in August
Sailor Springs, IL

Average rainfall days in August - Sailor Springs, IL
  • Average rainfall days in August: 15.4 days

The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in August
Sailor Springs, IL

Average snowfall in August - Sailor Springs, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Sailor Springs, IL

Average snowfall days in August - Sailor Springs, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (7.1 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
Sailor Springs, IL

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in August
Sailor Springs, IL

Average sunshine days in August - Sailor Springs, IL
  • Average sunshine days in August: 11.7 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (9 days).

Average UV index in August
Sailor Springs, IL

Average UV index in August - Sailor Springs, 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, November and December (UV index 2).

Average cloud cover in August
Sailor Springs, IL

Average cloud cover in August - Sailor Springs, IL
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in August
Sailor Springs, IL

Average visibility in August - Sailor Springs, 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).

Sailor Springs, Illinois, USA

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