Decatur weather in August (Illinois, United States of America)

How's the weather trend in Decatur as August approaches? Want to know if this month is ideal for visiting? Our guide provides detailed weather information.

Temperatures

Experience perfect weather in Decatur in August, characterized by high temperatures and moderate rainfall. August is typically considered a summer month. Expect the temperatures during the day to hover around 29°C. At night, they will likely drop to about 18°C.

Keep in mind that while these are the average temperatures, there can be days that are even hotter. It's essential to be prepared for such heat. Wearing light, breathable fabrics and protecting yourself from the sun's intensity with hats or shades can make a difference. Hydration is key, so remember to drink plenty of water. Especially if you find yourself outdoors for a longer period.

Precipitation

Decatur in August usually receives moderate rainfall, averaging around 65 mm for the month. Historically, approximately 8 days this month are expected to have rain.

Average sunshine

The city usually sees around 291 hours of sunlight, indicating many sunny days.

If you're a fan of comfortable temperatures and drier conditions, August is a great time to visit. August and September generally stand out with the best circumstances. While January, February and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Decatur climate page with graphs.

 

Decatur, monthly averages in August

Min Temperature 18°C  

Max Temperature 29°C  

Chance of Rain 27%  

Precipitation 65 mm  

Rainy days 8 days  

Humidity 74% *  

Sunshine 291 hours *  

Percentage Sunshine 68% *  

Data from: Springfield, the United States of America (59 KM, 36 Miles).

Where to go in the United States of America in August

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

8/10

Walking

8/10

Camping

8/10

Outdoor sports

8/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Decatur.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.