August weather forecast
Aurora, IL

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The tranquil city of Aurora, Illinois, as set in the peaceful waterfront promenade and the cloudy sky reflected in the water below
The tranquil city of Aurora, Illinois, as set in the peaceful waterfront promenade and the cloudy sky reflected in the water below

Weather in August

August sees a slight decline in Aurora's temperature, providing some relief to the residents from July's intense heat. The weather remains characteristically humid, consistent with the typical Midwest summer. With the UV index dropping to five, the sun's intensity reduces marginally. Falling pressure levels parallel the declining temperature, signaling the eventual retreat of summer. Despite these changes, sunshine hours remain relatively high, affirming the continuation of summer.

Temperature

During August, Aurora observes a subtle ascent to a still moderately hot 79.3°F (26.3°C) from July's 81°F (27.2°C) in the average high-temperature. During the month of August, the temperature falls to an average of 62.4°F (16.9°C).

Humidity

In August, the average relative humidity is 82%.

Rainfall

In Aurora, during August, the rain falls for 12.5 days and regularly aggregates up to 1.06" (27mm) of precipitation. In Aurora, during the entire year, the rain falls for 120.4 days and collects up to 12.32" (313mm) of precipitation.

Snowfall

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

Daylight

In Aurora, Illinois, the average length of the day in August is 13h and 49min.
On the first day of the month, sunrise is at 5:48 am and sunset at 8:10 pm. On the last day of August, in Aurora, sunrise is at 6:18 am and sunset at 7:27 pm CDT.

Sunshine

In Aurora, the average sunshine in August is 9.7h.

UV index

In Aurora, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily maximum UV index of 5 in August translates into the following instructions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures in Aurora?

August temperatures vary between a high-temperature of 79.3°F (26.3°C) and a low-temperature of 62.4°F (16.9°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is estimated at 87.8°F (31°C).

What is the average humidity in August in Aurora?

The average relative humidity in August is 82%.

How much does it rain in Aurora in August?

In August, in Aurora, Illinois, the rain falls for 12.5 days. Throughout August, 1.06" (27mm) of precipitation is accumulated.

When it does not snow in Aurora?

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

How many hours of daylight does Aurora have in August?

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

What time are sunrise and sunset in August in Aurora?

In August, on the first day of the month, sunrise is at 5:48 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:27 pm CDT.

How many hours of sunshine does Aurora have in August?

The average sunshine duration in August in Aurora, Illinois, is 9.7h.

What is the UV index reading in August in Aurora?

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

Average temperature in August - Aurora, IL
  • Average high temperature in August: 79.3°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in August: 62.4°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average pressure in August
Aurora, IL

Average pressure in August - Aurora, 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
Aurora, IL

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

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in August
Aurora, IL

Average humidity in August - Aurora, IL
  • Average humidity in August: 82%

The months with the highest relative humidity are January, February and July (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall in August
Aurora, IL

Average rainfall in August - Aurora, IL
  • Average rainfall in August: 1.06"

The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is February (0.51").

Average rainfall days in August
Aurora, IL

Average rainfall days in August - Aurora, IL
  • Average rainfall days in August: 12.5 days

The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in August
Aurora, IL

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

The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Aurora, IL

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

The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Aurora, IL

Average daylight in August / Average sunshine in August - Aurora, 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 48min).

Average sunshine days in August
Aurora, IL

Average sunshine days in August - Aurora, IL
  • Average sunshine days in August: 13.8 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is June (11.4 days).

Average UV index in August
Aurora, IL

Average UV index in August - Aurora, 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).

Average cloud cover in August
Aurora, IL

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

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 32).

Average visibility in August
Aurora, IL

Average visibility in August - Aurora, 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).

Aurora, Illinois, USA

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