Oak Lawn weather in September (Illinois, United States of America)

What kind of temperatures can you expect in Oak Lawn during September? Check out this detailed guide to the month’s weather conditions.

Temperatures

Experience perfect weather in Oak Lawn in September, characterized by high temperatures and moderate rainfall. In the daytime, temperatures tend to hover near 25°C, cooling down at night to around 15°C.

Precipitation

Oak Lawn in September usually receives moderate rainfall, averaging around 92 mm for the month. Analyzing past climate data, one can expect approximately 9 days of rain.

Average sunshine

With around 226 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit. September generally stands out with 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 Oak Lawn climate page with graphs.

 

Oak Lawn, monthly averages in September

Min Temperature 15°C  

Max Temperature 25°C  

Chance of Rain 30%  

Precipitation 92 mm  

Rainy days 9 days  

Humidity 71% *  

Sunshine 226 hours *  

Percentage Sunshine 60% *  

Data from: Chicago, the United States of America (32 KM, 20 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 Oak Lawn, 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 Oak Lawn.

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.