Frigid temperatures and sub-zero wind chills gripped the Chicago area Monday, causing one rally timed to the inauguration of President Donald Trump to be postponed, although others continued as planned. The high for Monday is forecast to be about ten degrees. Wind speeds of 15 to 25 miles per hour are expected to result in windchills of around 15 degrees below zero, according to the National Weather Service. “Wind chills… will only rise slightly throughout the rest of the day,” a spokesperson for the National Weather Service said. “Most of the area will see at least sub-zero wind chills throughout the day.” Amid the harsh weather, planned rallies to either protest or celebrate Trump entering office for the second time continued as planned. But the People’s March for Justice, originally scheduled for noon Monday, was postponed until Saturday “out of concern for attendees’ health,” organizers said in a news release. Frigid subzero weather grips Chicago on 40-year anniversary of record low “The decision came down to the need to protect our people,” Alithia Zamantakis, a member of the Party for Socialism & Liberation said. “We need to be able to be ready to fight for the long haul, so that means that we need to be healthy and well. Not in bed with frostbite.” Despite the severe weather, other gatherings such as the U.S. Palestinian Community Network Chicago and Chicago Alliance Against Racist and Political Repression rally protesting President Trump’s inauguration were continuing as scheduled. Temperatures are expected to continue dropping into the night, reaching lows of -5 degrees tonight according to the National Weather Service. Light snowfall may potentially occur following sunset, however no snow accumulation is expected.