After a period of sub-zero cold, much warmer weather is in store over the weekend. However, warm moist air spreading over cold ground and snow pack will result in the potential for drizzle and freezing drizzle Saturday and Saturday night, along with some fog. Precipitation will be all rain Sunday and Monday, as temperatures warm into the 40’s and even 50’s.

Records as reported by the National Weather Service:

  • The lowest temperature at Chicago was -23 degrees observed at Chicago O’Hare International Airport on January 30th.
  • The lowest temperature at Rockford was -31 degrees observed at Chicago Rockford International Airport on January 31st.
  • The lowest temperature at NWS Chicago in Romeoville was -24 degrees.  This ties the record set on January 16, 2009.
  • The lowest temperature at Chicago Midway Airport 3SW observed was -22 degrees on January 31, 2019.