Murfreesboro has a humid subtropical climate with hot summers and cool winters. Spring (March–May) and autumn (September–November) are the most pleasant times to visit, with mild temperatures and low humidity. Summers are hot and humid, regularly exceeding 32°C, though the Civil War sites can be visited in any season. Winters are mild by northern standards but bring occasional ice storms.
The city has no major annual festival that would dictate timing. If you're visiting primarily for the battlefield, any clear weather day works equally well, and autumn light on the open fields is particularly atmospheric.