July in Dundalk averages a daily high of 32.1°C with nights around 23°C. Expect roughly 10.6 wet days totalling 119.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Dundalk is April–May.
Based on MARYLAND SCIENCE CENTER, MD US (8.5km), 1995–2024. 24 years of July data.