August weather forecast
Topeka, IL

Share

Weather in August

The last month of the summer, August, is another warm month in Topeka, Illinois, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 82°F (27.8°C).

Temperature

In August, Topeka notes an average high-temperature of a still moderately hot 82°F (27.8°C), hardly different from the preceding month. The month of August records an average low-temperature of 64°F (17.8°C).

Heat index

In August, the heat index is calculated to be a hot 89.6°F (32°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.
Observations indicate that the heat index values are for shady locations with light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

In August, the average relative humidity is 80%.

Rainfall

In Topeka, in August, it is raining for 13.1 days, with typically 2.09" (53mm) of accumulated precipitation. Throughout the year, there are 142.9 rainfall days, and 28.31" (719mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day in Topeka is 13h and 43min.
On the first day of the month, sunrise is at 5:58 am and sunset at 8:13 pm. On the last day of August, sunrise is at 6:26 am and sunset at 7:32 pm CDT.

Sunshine

In Topeka, the average sunshine in August is 10h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.
Note: In August, the maximum UV index of 6 suggests these recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

August temperatures vary between a high-temperature of 82°F (27.8°C) and a low-temperature of 64°F (17.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is calculated to be 89.6°F (32°C).

What is the average humidity in August?

The average relative humidity in August is 80%.

How much does it rain in August?

In Topeka, in August, during 13.1 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in August?

In August, the average day length is 13h and 43min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 5:58 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:32 pm CDT.

How many hours of sunshine does Topeka have in August?

In Topeka, the average sunshine duration in August is 10h.

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

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

What is the UV index intensity in August in Topeka?

In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Topeka, IL

Average temperature in August - Topeka, IL
  • Average high temperature in August: 82°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in August: 64°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in August
Topeka, IL

Average pressure in August - Topeka, IL
  • Average pressure in August: 29.97"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
Topeka, IL

Average wind speed in August - Topeka, IL
  • Average wind speed in August: 6.3mph

The windiest months (with the highest average wind speed) are January, February and April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in August
Topeka, IL

Average humidity in August - Topeka, IL
  • Average humidity in August: 80%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Topeka, IL

Average rainfall in August - Topeka, IL
  • Average rainfall in August: 2.09"

The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is December (1.38").

Average rainfall days in August
Topeka, IL

Average rainfall days in August - Topeka, IL
  • Average rainfall days in August: 13.1 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in August
Topeka, IL

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

The month with the highest snowfall is January (3.5").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Topeka, IL

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

The month with the highest number of snowfall days is January (9.2 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
Topeka, IL

Average daylight in August / Average sunshine in August - Topeka, 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 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 12min).

Average sunshine days in August
Topeka, IL

Average sunshine days in August - Topeka, IL
  • Average sunshine days in August: 15.6 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in August
Topeka, IL

Average UV index in August - Topeka, 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
Topeka, IL

Average cloud cover in August - Topeka, IL
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July, August and September (Cloud cover 29).

Average visibility in August
Topeka, IL

Average visibility in August - Topeka, IL
  • Average visibility in August: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).

Topeka, Illinois, USA

Weather forecast for your location

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