If you’re hoping to get lost in the rain on your romantic getaway, take a look at these details about year-round temperatures in Van Buren: The hottest months are usually July and August, with an average temperature of 26°C, while the coldest months are January and February, with an average of 7°C. The rainiest months in Van Buren are May, April, March and October, with each month seeing an average of 178 mm of rainfall.