August weather forecastMackinaw, IL
August
Weather in August
August, the last month of the summer in Mackinaw, is also a moderately hot month, with an average temperature ranging between max 80.6°F (27°C) and min 63.3°F (17.4°C).Temperature
The shift into August reveals an average high-temperature of a still moderately hot 80.6°F (27°C), closely mirroring July's climate. Throughout August, Mackinaw anticipates an average low-temperature of 63.3°F (17.4°C).Heat index
In August, the heat index is computed to be a tropical 86°F (30°C). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.In reference to the heat index, it's for places in shade and with a slight wind. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humidity
The average relative humidity in August is 82%.Rainfall
In Mackinaw, in August, during 9.1 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. Throughout the year, there are 99.2 rainfall days, and 8.43" (214mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In August, the average length of the day is 13h and 44min.On the first day of August in Mackinaw, sunrise is at 5:55 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:30 pm CDT.
Sunshine
In August, the average sunshine is 9.9h.UV index
The months with the highest UV index in Mackinaw are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In August, an average UV index of 6 transforms into the following instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Mackinaw, IL
- Average high temperature in August: 80.6°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 (31.1°F).
- Average low temperature in August: 63.3°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in August
Mackinaw, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Mackinaw, IL
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in August
Mackinaw, IL
- Average humidity in August: 82%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Mackinaw, IL
- Average rainfall in August: 0.67"
The wettest month (with the highest rainfall) is May (1.14").
The driest month (with the least rainfall) is December (0.43").
Average rainfall days in August
Mackinaw, IL
- Average rainfall days in August: 9.1 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in August
Mackinaw, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Mackinaw, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6.8 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
Mackinaw, 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 18min).
- Average sunshine in August: 9h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in August
Mackinaw, IL
- Average sunshine days in August: 18.8 days
The month with the most sunshine days is January (23 days).
The month with the least sunshine days is May (14.7 days).
Average UV index in August
Mackinaw, 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
Mackinaw, IL
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in August
Mackinaw, 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).
