October in Palatine averages a daily high of 15.8°C with nights around 5.7°C. Expect roughly 11.6 wet days totalling 85.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Palatine is June–September.
Based on BARRINGTON 3 SW, IL US (10.7km), 1995–2024. 25 years of October data.