August weather forecastVilla Grove, IL
August
Weather in August
August, the last month of the summer in Villa Grove, is another warm month, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 63.7°F (17.6°C).Temperature
During August, Villa Grove observes a subtle ascent to a still warm 81°F (27.2°C) from July's 82°F (27.8°C) in the average high-temperature. Villa Grove records an average low of 63.7°F (17.6°C) throughout the nights in August.Heat index
For most parts of August, the heat index is evaluated at a tropical 86°F (30°C). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values hold great significance to children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humidity
In Villa Grove, the average relative humidity in August is 82%.Rainfall
In Villa Grove, Illinois, in August, it is raining for 13 days, with typically 1.46" (37mm) of accumulated precipitation. In Villa Grove, during the entire year, the rain falls for 132 days and collects up to 15.94" (405mm) of precipitation.Snowfall
In Villa Grove, snow does not fall in May through September.Daylight
The average length of the day in August in Villa Grove is 13h and 41min.On the first day of August, sunrise is at 5:52 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:25 pm CDT.
Sunshine
In August, the average sunshine in Villa Grove is 10h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Villa Grove. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 6 in August translates into this advice:
Resist overexposure. Safeguarding from solar damage is indispensable. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Villa Grove, IL
- Average high temperature in August: 81°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in August: 63.7°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°F).
Average pressure in August
Villa Grove, 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 (29.93"Hg).
Average wind speed in August
Villa Grove, IL
- Average wind speed in August: 6.3mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in August
Villa Grove, 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%).
Average rainfall in August
Villa Grove, IL
- Average rainfall in August: 1.46"
The wettest month (with the highest rainfall) is April (1.97").
The driest month (with the least rainfall) is February (0.83").
Average rainfall days in August
Villa Grove, IL
- Average rainfall days in August: 13 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is February (6 days).
Average snowfall in August
Villa Grove, IL
- Average snowfall in August: 0"
The month with the highest snowfall is December (1.26").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Villa Grove, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (8 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
Villa Grove, IL
- Average daylight in August: 13h and 42min
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 24min).
- Average sunshine in August: 10h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in August
Villa Grove, IL
- Average sunshine days in August: 13.8 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in August
Villa Grove, 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).
Average cloud cover in August
Villa Grove, 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 June (Cloud cover 30).
Average visibility in August
Villa Grove, 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).





