After a day of sunshine, we're about to get walloped with winter weather once again.
The National Weather Service has issued a wind chill advisory, effective from midnight until 11 a.m. Monday.
Wind chill values will hit as low as -20 at times, according to the WNWS.
"This will result in frostbite and lead to hypothermia if precautions are not taken," the NWS said. "If you must venture outdoors, make sure you wear a hat and gloves."