A St. Louis circuit judge said Missouri’s last abortion clinic can operate through Friday, offering a temporary reprieve as the clinic plans its next steps following the state’s decision not to renew its license.

The ruling to extend an injunction for another week grants the Reproductive Health Services of Planned Parenthood of the St. Louis Region time to appeal the license decision to the state’s Administrative Hearing Commission, Circuit Judge Michael Stelzer said on Monday. The order also moves the continuing battle outside...