Subscribe This afternoon will be cloudy with a high around 31 degrees. Tonight’s low will be near 19 degrees. Tomorrow will be sunny with a high around 32 degrees. Top story Chicago is contracting with an online health care service to allow residents to schedule vaccinations at city sites, though there is still an extremely limited number of shots available and users potentially will get no more than a response promising to send an email when appointments open up. The city says eligible residents, including those 65 and older and essential workers, can sign up through a site or app operated by Zocdoc, a New York-based medical appointment service. It can be accessed at www.zocdoc.com/vaccine or by downloading the app, which is available from Apple and Google app stores.