August weather forecastAntioch, IL
August
Weather in August
The sun-soaked days continue in Antioch as August retains summer's charm. The weather remains consistently warm, with temperatures slightly dropping from July's average high of 79°F (26.1°C) to 77.5°F (25.3°C). It's the perfect time to continue visiting local attractions and engaging in summer activities. Despite the persistent heat, the notable drop in daylight hours to 13.8 hours heralds the impending arrival of Autumn. August serves as the perfect sunset, metaphorically, to the warmth and vibrancy of an eventful summer season.Temperature
With the onset of August in Antioch, the average high-temperature registers at a still warm 77.5°F (25.3°C), subtly different from July's 79°F (26.1°C). In August, the average low-temperature in Antioch records at an enjoyable 61.5°F (16.4°C) during the nights.Humidity
The average relative humidity in August in Antioch, Illinois, is 82%.Rainfall
In Antioch, Illinois, during August, the rain falls for 16.3 days and regularly aggregates up to 2.99" (76mm) of precipitation. Throughout the year, there are 139.6 rainfall days, and 26.18" (665mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In August, the average length of the day in Antioch is 13h and 51min.On the first day of August in Antioch, sunrise is at 5:45 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:27 pm CDT.
Sunshine
July and August, with an average of 9.9h of sunshine, are months with the most sunshine in Antioch.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Antioch, Illinois. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: An average UV index of 5 in August transforms into this advice:
Take necessary precautions - Defending against sun damage is advocated. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Antioch, IL
- Average high temperature in August: 77.5°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (26.2°F).
- Average low temperature in August: 61.5°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in August
Antioch, IL
- Average pressure in August: 29.97"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Antioch, IL
- Average wind speed in August: 6.4mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in August
Antioch, IL
- Average humidity in August: 82%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall in August
Antioch, IL
- Average rainfall in August: 2.99"
The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is December (1.06").
Average rainfall days in August
Antioch, IL
- Average rainfall days in August: 16.3 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in August
Antioch, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Antioch, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Antioch, IL
- Average daylight in August: 13h and 54min
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 6min).
- Average sunshine in August: 9h and 54min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The months with the least sunshine are January and February (Average sunshine: 3h and 36min).
Average sunshine days in August
Antioch, IL
- Average sunshine days in August: 12.2 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in August
Antioch, IL
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Antioch, IL
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July, August and September (Cloud cover 32).
Average visibility in August
Antioch, 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).
