Glen Ellyn Weather in August

August in Glen Ellyn typically sees daytime highs of 28°C (82°F) and nighttime lows of 17°C (63°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Glen Ellyn in August

Climate statistics over the past 30 years suggest around 11 days of rain, with 115 mm (4.5 in) average for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Glen Ellyn in August

Temperatures in Glen Ellyn in August top out at 28°C (82°F) and drop to 17°C (63°F) overnight. This kind of day-to-night contrast is typical for this time of year. With overnight lows of 17°C (63°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Glen Ellyn in August

The month enjoys around 280 hours of sunshine, creating mostly sunny days with good weather conditions.

Wind Speed in Glen Ellyn in August

August 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.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. September typically offers the best weather for Glen Ellyn.