August weather forecast
Bourbonnais, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Bourbonnais, Illinois, with an average temperature varying between 62.6°F (17°C) and 80.1°F (26.7°C).

Temperature

Bourbonnais's weather in August, with an average high-temperature of a still warm 80.1°F (26.7°C), subtly shifts from July's 81.1°F (27.3°C). In the month of August, the temperature generally rests at an average low of 62.6°F (17°C).

Humidity

The average relative humidity in August is 83%.

Rainfall

In August, in Bourbonnais, the rain falls for 8.8 days. Throughout August, 0.47" (12mm) of precipitation is accumulated. Throughout the year, there are 80.5 rainfall days, and 6.22" (158mm) of precipitation is accumulated.

Snowfall

In Bourbonnais, snow does not fall in May through October.

Daylight

The average length of the day in August is 13h and 46min.
On the first day of the month, sunrise is at 5:47 am and sunset at 8:07 pm. On the last day of August, sunrise is at 6:17 am and sunset at 7:25 pm CDT.

Sunshine

August has the most sunshine of the year in Bourbonnais, Illinois, with an average of 9.9h of sunshine.

UV index

The average daily maximum UV index in August in Bourbonnais is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index, 5 during August, leads to the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

What is the temperature in August in Bourbonnais?

The high-temperature, in August, in Bourbonnais, records 80.1°F (26.7°C), while the low-temperature is 62.6°F (17°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 87.8°F (31°C).

What is the average humidity in August in Bourbonnais?

In August, the average relative humidity is 83%.

How much does it rain in Bourbonnais in August?

In Bourbonnais, during August, the rain falls for 8.8 days and regularly aggregates up to 0.47" (12mm) of precipitation.

When it does not snow in Bourbonnais?

In Bourbonnais, Illinois, snow does not fall in May through October.

How many hours of daylight does Bourbonnais have in August?

In Bourbonnais, Illinois, the average day length in August is 13h and 46min.

What time are sunrise and sunset in August in Bourbonnais?

On the first day of August in Bourbonnais, Illinois, sunrise is at 5:47 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:25 pm CDT.

What month has the most sunshine in Bourbonnais?

August has the most sunshine of the year in Bourbonnais, with an average of 9.9h of sunshine.

How long on average sun shines in August in Bourbonnais?

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

What is the UV index reading in August in Bourbonnais?

In August, the average daily maximum UV index in Bourbonnais, Illinois, is 5. A UV Index estimate of 3 to 5 represents a medium health risk 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
Bourbonnais, IL

Average temperature in August - Bourbonnais, IL
  • Average high temperature in August: 80.1°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in August: 62.6°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

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Average pressure in August
Bourbonnais, IL

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in August
Bourbonnais, IL

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

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

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Average humidity in August
Bourbonnais, IL

Average humidity in August - Bourbonnais, IL
  • Average humidity in August: 83%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in August
Bourbonnais, IL

Average rainfall in August - Bourbonnais, IL
  • Average rainfall in August: 0.47"

The wettest month (with the highest rainfall) is May (1.06").
The driest month (with the least rainfall) is November (0.28").

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Average rainfall days in August
Bourbonnais, IL

Average rainfall days in August - Bourbonnais, IL
  • Average rainfall days in August: 8.8 days

The month with the highest number of rainy days is May (11.4 days).
The month with the least rainy days is January (2.3 days).

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Average snowfall in August
Bourbonnais, IL

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

The month with the highest snowfall is January (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Bourbonnais, IL

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

The month with the highest number of snowfall days is January (5.8 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
Bourbonnais, IL

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

The month with the longest days is June (Average daylight: 15h and 6min).
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 August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in August
Bourbonnais, IL

Average sunshine days in August - Bourbonnais, IL
  • Average sunshine days in August: 18.9 days

The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is June (15.7 days).

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Average UV index in August
Bourbonnais, IL

Average UV index in August - Bourbonnais, 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 and December (UV index 1).

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Average cloud cover in August
Bourbonnais, IL

Average cloud cover in August - Bourbonnais, IL
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).

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Average visibility in August
Bourbonnais, IL

Average visibility in August - Bourbonnais, 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).

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Bourbonnais, Illinois, USA

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