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.