The 55th Space Weather Squadron is an inactive United States Air Force unit. It was last assigned to the 50th Operations Group at Schriever Air Force Base, Colorado, where it was inactivated on 16 July 2002. The squadron was reactivated at McClellan Air Force Base, California as the 55th Strategic Reconnaissance Squadron. Redesignated the 55th Weather Reconnaissance Squadron in 1954, the squadron flew weather reconnaissance missions until 1953, except for a brief inactive period in the early 1960s.