Lemont Weather in October

October in Lemont 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 Lemont in October

This month experiences about 11 days of rain according to historical data, averaging 90 mm (3.5 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Lemont in October

Temperatures in Lemont in October top out at 17°C (63°F) and drop to 6°C (43°F) overnight. Conditions are often most pleasant around the middle of the day. With overnight lows of 6°C (43°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Lemont in October

The month enjoys around 195 hours of sunshine, creating mostly sunny days with good weather conditions.

Should you favor a climate that's both dry and comfortably warm, September typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.