August in Middletown averages a daily high of 29.4°C with nights around 17.9°C. Expect roughly 10.3 wet days totalling 120.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Middletown is May–June.
Based on FREEHOLD MARLBORO, NJ US (14.5km), 1995–2024. 26 years of August data.