Romeoville Weather in May
May in Romeoville brings high temperatures, with highs of 22°C (72°F) and nights dropping to 10°C (50°F). Rainfall is on the higher side this month, averaging around 110 mm (4.3 in), so keep a rain jacket handy.
Rainfall in Romeoville in May
You can expect rain on around 13 days based on historical patterns, with 110 mm (4.3 in) average for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Romeoville in May
Expect highs of 22°C (72°F) in Romeoville in May, with nights dropping to around 10°C (50°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With lows of 10°C (50°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Romeoville in May
Expect a lot of sunshine this month, with about 282 hours of sun. These sunny conditions add to the overall experience.If you prefer dry days with pleasant temperatures, September typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Romeoville's climate page.
Romeoville Temperature in May
Min Temperature
10°C (50°F)
Max Temperature
22°C (72°F)
Chance of Rain
45%
Precipitation
110 mm (4.3 in)
Rainy days
13 days
Humidity
64% *
Sunshine
282 hours *
Percentage Sunshine
62% *
Best Places 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. See all of the United States of America in May →
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What to Wear in Romeoville in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Romeoville in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Romeoville's climate page.
Temperature Rainfall Sunshine Humidity
See the full Romeoville climate overview or explore weather in the United States of America.
