SH-102 traces its origins to a spur route from SH-39 to Wanette that was added to the highway system in 1955.

SH-102 begins in downtown Wanette and heads northward to meet State Highway 39, which it very briefly overlaps.

After splitting off, it heads northward to meet State Highway 270 in McLoud, which it briefly overlaps.

[2][4] A second segment of SH-102, extending from SH-9 west of Tecumseh to US-270 (present-day SH-270) between McLoud and Dale, was added on October 6, 1958.

On May 10, 1971, the highway was extended south from SH-9 to SH-39 and joined to the Wanette spur by means of a concurrency.

[8] After the work was completed, SH-102 was truncated back to SH-66, though the connector road still exists and remains open to traffic.