August in Terre Haute averages a daily high of 31.3°C with nights around 17.8°C. Expect roughly 7.6 wet days totalling 71.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Terre Haute is April–May.
Based on TERRE HAUTE INDIANA STATE, IN US (0.7km), 1995–2024. 17 years of August data.