Glen Ellyn weather in May (Illinois, United States of America)

What weather conditions can you expect in Glen Ellyn this May? Wondering about the weather this month? Our guide has all the details you need.

Temperatures

In May, Glen Ellyn usually has pleasant temperatures and high rainfall. During the day, temperatures can climb to about 22°C. At night, they may fall to a cooler 10°C.

Precipitation

Glen Ellyn in May usually receives high rainfall, averaging around 111 mm for the month. Climate statistics over the past 30 years suggest around 13 days of rain.

Average sunshine

Expect sunny days throughout the month, with an estimated 282 hours of sunshine. Making it a pleasant time to visit Glen Ellyn.

In case you lean more towards enjoying temperate temperatures and rain-free days September typically offers the most optimal weather. In contrast, January, February, March, November and December tend to have less optimal conditions.

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

 

Glen Ellyn, monthly averages in May

Min Temperature 10°C  

Max Temperature 22°C  

Chance of Rain 43%  

Precipitation 111 mm  

Rainy days 13 days  

Humidity 64% *  

Windspeed 18 km/h *  

Sunshine 282 hours *  

Percentage Sunshine 62% *  

* Data from: Chicago, the United States of America (18 KM, 11 Miles).

Where to go in the United States of America in May

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 Glen Ellyn, 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.

Cycling

9/10

Walking

9/10

Camping

3/10

Outdoor sports

9/10

Interested in more climate information?

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

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.