August weather forecast
Elwin, IL

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Weather in August

The last month of the summer, August, is another warm month in Elwin, Illinois, with an average temperature fluctuating between 81.1°F (27.3°C) and 63.9°F (17.7°C).

Temperature

August's arrival shows an average high-temperature of a still moderately hot 81.1°F (27.3°C), hardly different from the previous month. During August, Elwin records an average temperature of 63.9°F (17.7°C) at night.

Heat index

For August, the heat index is estimated at a tropical 87.8°F (31°C). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.
Data suggests that the heat index is set for environments in shade and with a light wind. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

In August, the average relative humidity in Elwin is 82%.

Rainfall

In Elwin, Illinois, in August, during 11.8 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Elwin, during the entire year, the rain falls for 130.2 days and collects up to 16.34" (415mm) of precipitation.

Snowfall

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

Daylight

In Elwin, the average length of the day in August is 13h and 41min.
On the first day of the month, sunrise is at 5:55 am and sunset at 8:08 pm. On the last day of August, in Elwin, sunrise is at 6:23 am and sunset at 7:28 pm CDT.

Sunshine

The average sunshine in August in Elwin is 9.9h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 in August converts into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
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Frequently asked questions

What are the temperatures in Elwin in August?

An average high-temperature, in August, in Elwin, is 81.1°F (27.3°C) and the average low-temperature is 63.9°F (17.7°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in August is estimated at 87.8°F (31°C).

What is the average humidity in August in Elwin?

In August, the average relative humidity in Elwin is 82%.

How much does it rain in Elwin in August?

In August, in Elwin, Illinois, the rain falls for 11.8 days. Throughout August, 1.5" (38mm) of precipitation is accumulated.

When it does not snow in Elwin?

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

How many hours of daylight does Elwin have in August?

The average day length in August in Elwin, Illinois, is 13h and 41min.

What time are sunrise and sunset in August in Elwin?

On the first day of August in Elwin, sunrise is at 5:55 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:28 pm CDT.

How long on average sun shines in August in Elwin?

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

When is the highest UV index in Elwin?

The months with the highest UV index in Elwin, Illinois, are June through August, with an average maximum UV index of 6.

What is the UV index reading in August in Elwin?

In August, the average daily maximum UV index in Elwin, Illinois, is 6. A UV Index estimate of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
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
Elwin, IL

Average temperature in August - Elwin, IL
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in August: 63.9°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

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Average pressure in August
Elwin, IL

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in August
Elwin, IL

Average wind speed in August - Elwin, IL
  • Average wind speed in August: 6.3mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

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Average humidity in August
Elwin, IL

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

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in August
Elwin, IL

Average rainfall in August - Elwin, IL
  • Average rainfall in August: 1.5"

The wettest month (with the highest rainfall) is May (2.01").
The driest months (with the least rainfall) are February and December (0.87").

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Average rainfall days in August
Elwin, IL

Average rainfall days in August - Elwin, IL
  • Average rainfall days in August: 11.8 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (5.8 days).

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Average snowfall in August
Elwin, IL

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

The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Elwin, IL

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

The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in August
Elwin, IL

Average sunshine days in August - Elwin, IL
  • Average sunshine days in August: 16.6 days

The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (11.5 days).

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Average UV index in August
Elwin, IL

Average UV index in August - Elwin, IL
  • Average UV index in August: 6

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

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Average cloud cover in August
Elwin, IL

Average cloud cover in August - Elwin, IL
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 29).

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Average visibility in August
Elwin, IL

Average visibility in August - Elwin, 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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Elwin, Illinois, USA

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