Weather in Oak Lawn in September
Oak Lawn, United States averages a high of 23.7°C (74.7°F) and low of 15.1°C (59.2°F) in September, with 8 rain days and 9.9 hours of daily sunshine. Travel score: 84.1/100 (Excellent). The best time to visit Oak Lawn is September.
High
24°C75°F
Low
15°C59°F
🌧️
8
rain days
☀️
9.9
hrs/day sunshine
💧
70%
humidity
84— Excellent
September in Oak Lawn is warm and occasionally wet — excellent conditions for exploring.
What are the average temperatures in Oak Lawn?
How much does it rain in Oak Lawn in September?
Oak Lawn receives an average of 75.9mm of rainfall across 8 rainy days in September. The annual total is 996.1mm.
What should I pack for Oak Lawn in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 24°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (8 days)
☔
Umbrella
Be prepared for occasional showers
Traveling to United States in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31