Downers Grove Weather in September

September in Downers Grove sees daytime temperatures around 25°C (77°F) and lows of 13°C (55°F) at night. With around 88 mm (3.5 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Downers Grove in September

Climate statistics over the past 30 years suggest around 10 days of rain, with 88 mm (3.5 in) average for the month. 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 Downers Grove in September

September in Downers Grove is generally excellent, with days reaching 25°C (77°F) and nights settling around 13°C (55°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights cool down to 13°C (55°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Downers Grove in September

Expect sunny days throughout the month, with an estimated 226 hours of sunshine. This makes it a pleasant time to visit Downers Grove.

Wind Speed in Downers Grove in September

September sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Downers Grove.