February in Oak Lawn averages a daily high of 2.7°C with nights around -5.3°C. Expect roughly 9.4 wet days totalling 57.7mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Oak Lawn is August–September.
Based on CHICAGO MIDWAY AIRPORT 3 SW, IL US (3.3km), 1995–2024. 30 years of February data.