Romeoville weather in May (Illinois, United States of America)

Planning a trip to Romeoville in May? Here's what the weather might have in store during this month.

In May, Romeoville typically experiences high temperatures and high rainfall. Daytime temperatures hover around 22°C, while nights can cool down to about 10°C.

Romeoville in May usually receives high rainfall, averaging around 110 mm for the month. Typically around 13 days of rainfall is expected.

The city usually sees around 282 hours of sunlight, indicating many sunny days.

Should you favor a climate that's both dry and comfortably warm September typically offers the most agreeable circumstances. On the other hand, January, February, March, November and December tend to be characterized by conditions that may not be as optimal.

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

 

Romeoville, monthly averages in May

Min Temperature 10°C  

Max Temperature 22°C  

Chance of Rain 45%  

Precipitation 110 mm  

Rainy days 13 days  

Humidity 64% *  

Sunshine 282 hours *  

Percentage Sunshine 62% *  

* Data from: Chicago, the United States of America (40 KM, 25 Miles).

Where to go in the United States of America in May

Find out more about the weather in the United States of America in May and which places have the best weather 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 Romeoville in May?

For visitors traveling to Romeoville, 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 in May.

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Romeoville.

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 climate conditions. Find out where to go with our weather planner.