Des Plaines weather in September (Illinois, United States of America)

Will it be warm or cold in Des Plaines this September? Here's what you need to know about the weather for the month.

Temperatures

September in Des Plaines generally includes high temperatures and high rainfall. You can expect daytime temperatures to reach around 24°C, while the nights will see a decline to about 14°C.

Precipitation

Des Plaines in September usually receives high rainfall, averaging around 100 mm for the month. According to historical climate patterns, there are usually around 9 days days of rain.

Average sunshine

Enjoy a sunny month with about 226 hours of sunshine, providing a cheerful and lively atmosphere.

If you're inclined towards comfortable temperatures and drier conditions, September is a prime time to visit Des Plaines. May, June, July, August and September typically offer the best circumstances. While January, February, March, November and December tend to showcase less optimal conditions.

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

 

Des Plaines, monthly averages in September

Min Temperature 14°C  

Max Temperature 24°C  

Chance of Rain 30%  

Precipitation 100 mm  

Rainy days 9 days  

Humidity 71% *  

Windspeed 14 km/h *  

Sunshine 226 hours *  

Percentage Sunshine 60% *  

* Data from: Chicago, the United States of America (6 KM, 4 Miles).

Where to go in the United States of America in September

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?

For visitors traveling to Des Plaines, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

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

Swimming

9/10

Cycling

9/10

Walking

9/10

Barbeque

8/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

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

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.