Romeoville Weather in October

October in Romeoville averages 17°C (63°F) during the day and 6°C (43°F) at night. Quite a bit of rainfall is typical this month, with around 90 mm (3.5 in) on average. An umbrella is a good idea.

Rainfall in Romeoville in October

Analyzing past climate data, one can expect approximately 11 days of rain, averaging 90 mm (3.5 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Romeoville in October

Daytime temperatures in Romeoville reach 17°C (63°F) in October, dropping to 6°C (43°F) at night. The difference between afternoon and evening temperatures is usually noticeable. Nights drop to 6°C (43°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Romeoville in October

The days are predominantly sunny, with an estimated total of around 195 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

If you prefer enjoying temperate temperatures and rain-free days, 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.

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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 October

Min Temperature 6°C (43°F)  

Max Temperature 17°C (63°F)  

Chance of Rain 38%  

Precipitation 90 mm (3.5 in)  

Rainy days 11 days  

Humidity 68% *  

Sunshine 195 hours *  

Percentage Sunshine 56% *  

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

What to Wear in Romeoville in October

Comfortable temperatures call for an easy wardrobe in October. 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Romeoville in October

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

Swimming

6/10

Cycling

6/10

Walking

6/10

Barbeque

6/10

Camping

4/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

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.

More climate data for Romeoville

Temperature Rainfall Sunshine Humidity

See the full Romeoville climate overview or explore weather in the United States of America.