Romeoville Weather in August

Romeoville in August sees high temperatures, with highs around 28°C (82°F) and overnight lows of 17°C (63°F). Rainfall is fairly high at around 120 mm (4.7 in) on average, so pack waterproofs just in case.

Rainfall in Romeoville in August

On average, there are about 11 days with rain during this month, averaging 120 mm (4.7 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Romeoville in August

If you're visiting Romeoville in August, expect highs of 28°C (82°F) and overnight lows around 17°C (63°F). This kind of day-to-night contrast is typical for this time of year. Nights drop to around 17°C (63°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Romeoville in August

Enjoy a sunny month with about 280 hours of sunshine, the clear skies make Romeoville even more beautiful.

For Romeoville itself, September generally stands out with 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.