A wind chill advisory is scheduled to go into effect at midnight for McHenry County, the National Weather Service said.
Wind chills of 20 to 30 degrees below zero are forecasted, as winds are expected to reach 5 to 10 mph.
The adivsory is scheduled to be in effect until 11 a.m. Monday.
The low wind chills can result in frost bite and lead to hypothermia if precautions are not taken, the weather service said.
People are advised to wear a hat and gloves.
Warmer temperatures are on the horizon.
After a high temperature of 9 degrees on Tuesday, temperatures are expected to reach the low 20s on Wednesday, and low 30s on Thursday, according to the National Weather Service.
- Northwest Herald