August weather forecast
Tiskilwa, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Tiskilwa, Illinois, with temperature in the range of an average low of 62.1°F (16.7°C) and an average high of 79.5°F (26.4°C).

Temperature

Tiskilwa greets August with an average high-temperature of a still moderately hot 79.5°F (26.4°C), marking a slight deviation from the preceding month. August nights experience a consistent temperature drop to an enjoyable 62.1°F (16.7°C).

Humidity

In Tiskilwa, Illinois, the average relative humidity in August is 83%.

Rainfall

In Tiskilwa, in August, it is raining for 12.8 days, with typically 1.5" (38mm) of accumulated precipitation. In Tiskilwa, during the entire year, the rain falls for 130 days and collects up to 17.64" (448mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 47min.
On the first day of the month, sunrise is at 5:54 am and sunset at 8:14 pm. On the last day of August, sunrise is at 6:24 am and sunset at 7:32 pm CDT.

Sunshine

The average sunshine in August in Tiskilwa is 9.6h.

UV index

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: In August, a daily maximum UV index of 5 leads to the following instructions:
Heed the precautions - Suggestions to avoid sunburn are made. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Tiskilwa in August?

The high-temperature, in August, in Tiskilwa, is 79.5°F (26.4°C), while the low-temperature averages to 62.1°F (16.7°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 86°F (30°C).

What is the average humidity in August in Tiskilwa?

The average relative humidity in August in Tiskilwa, Illinois, is 83%.

How many days does it rain in August in Tiskilwa?

In Tiskilwa, Illinois, in August, it is raining for 12.8 days, with typically 1.5" (38mm) of accumulated precipitation.

When it does not snow in Tiskilwa?

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

How many hours of daylight does Tiskilwa have in August?

In August, the average day length is 13h and 47min.

What time are sunrise and sunset in August in Tiskilwa?

On the first day of August in Tiskilwa, Illinois, sunrise is at 5:54 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:32 pm CDT.

How many hours of sunshine does Tiskilwa have in August?

In Tiskilwa, Illinois, the average sunshine duration in August is 9.6h.

What is the UV index reading in August in Tiskilwa?

In Tiskilwa, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
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
Tiskilwa, IL

Average temperature in August - Tiskilwa, IL
  • Average high temperature in August: 79.5°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in August: 62.1°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

Average pressure in August
Tiskilwa, IL

Average pressure in August - Tiskilwa, IL
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Tiskilwa, IL

Average wind speed in August - Tiskilwa, IL
  • Average wind speed in August: 6.4mph

The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in August
Tiskilwa, IL

Average humidity in August - Tiskilwa, IL
  • Average humidity in August: 83%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Tiskilwa, IL

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

The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days in August
Tiskilwa, IL

Average rainfall days in August - Tiskilwa, IL
  • Average rainfall days in August: 12.8 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (4.5 days).

Average snowfall in August
Tiskilwa, IL

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

The month with the highest snowfall is January (2.09").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Tiskilwa, IL

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

The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in August / Average sunshine in August - Tiskilwa, IL
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 9h and 4min

The months with the most sunshine are June and July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in August
Tiskilwa, IL

Average sunshine days in August - Tiskilwa, IL
  • Average sunshine days in August: 15.4 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (11.8 days).

Average UV index in August
Tiskilwa, IL

Average UV index in August - Tiskilwa, IL
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in August
Tiskilwa, IL

Average cloud cover in August - Tiskilwa, IL
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 32).

Average visibility in August
Tiskilwa, IL

Average visibility in August - Tiskilwa, 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).

Tiskilwa, Illinois, USA

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