August weather forecast
Mackinaw, IL

Share

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.
[Resources]

Frequently asked questions

What are the temperatures in Mackinaw in August?

In Mackinaw, 80.6°F (27°C) is the average high-temperature and 63.3°F (17.4°C) is the average low-temperature during August. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is computed to be 86°F (30°C).

What is the average humidity in August in Mackinaw?

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

How many days does it rain in August in Mackinaw?

In Mackinaw, Illinois, during August, the rain falls for 9.1 days and regularly aggregates up to 0.67" (17mm) of precipitation.

When it does not snow in Mackinaw?

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

How many hours of daylight does Mackinaw have in August?

In August, the average day length in Mackinaw, Illinois, is 13h and 44min.

What time are sunrise and sunset in August in Mackinaw?

On the first day of August, 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.

How long on average sun shines in August in Mackinaw?

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

What are the months with the highest UV index in Mackinaw?

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

What is the UV index intensity in August in Mackinaw?

In August, the average daily maximum UV index in Mackinaw, Illinois, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from 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
Mackinaw, IL

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).

[Resources]

Average pressure in August
Mackinaw, IL

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).

[Resources]

Average wind speed in August
Mackinaw, IL

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).

[Resources]

Average humidity in August
Mackinaw, IL

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%).

[Resources]

Average rainfall in August
Mackinaw, IL

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").

[Resources]

Average rainfall days in August
Mackinaw, IL

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).

[Resources]

Average snowfall in August
Mackinaw, IL

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").

[Resources]

Average snowfall days in August
Mackinaw, IL

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).

[Resources]

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

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

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 5min

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).

[Resources]

Average sunshine days in August
Mackinaw, IL

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).

[Resources]

Average UV index in August
Mackinaw, IL

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).

[Resources]

Average cloud cover in August
Mackinaw, IL

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).

[Resources]

Average visibility in August
Mackinaw, IL

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).

[Resources]

Mackinaw, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location