National Weather Service United States Department of Commerce

Unseasonably cold temperatures spreading into central U.S.

A strong cold front will usher a much colder air mass into the central and eastern U.S. for the end of the work week. Temperatures will be 10 to 20 degrees below average in some areas. Rain and snow will be possible across the Great Lakes on Friday as the system crosses the area. Heavy snow is possible in the central Appalachians Friday night.
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Current Conditions

Cook County

Zone Forecast

  • Today Very windy. Mostly cloudy. Intermittent snow showers through mid morning...then a chance of snow showers or rain showers near the lake in the afternoon. Little or no snow accumulation. Unseasonably cold. Temperatures holding in the upper 30s or lower 40s. North winds 25 to 35 mph with gusts to 45 mph...except 30 to 40 mph with gusts up to 60 mph near the lake. Chance of precipitation 80 percent.
  • Tonight Windy. Snow showers likely...mainly near the lake. Unseasonably cold. Lows in the lower 30s in the suburbs...but in the mid 30s downtown. North winds 25 to 35 mph with gusts up to 45 mph in the evening decreasing to 10 to 20 mph with gusts up to 30 mph after midnight. Chance of precipitation 70 percent.
  • Saturday Partly sunny with a 20 percent chance of rain showers and snow showers in the morning...then mostly sunny in the afternoon. Highs in the lower 40s. North winds 10 to 20 mph. Gusts up to 35 mph in the morning.
  • Saturday Night Clear. Lows around 30 in the suburbs...but in the mid 30s downtown. Northwest winds 5 to 10 mph in the evening shifting to the southwest after midnight.
  • Sunday Mostly sunny. Highs in the upper 40s. South winds 10 to 20 mph. Gusts up to 30 mph in the afternoon.
  • Sunday Night Partly cloudy. Lows in the upper 30s.
  • Monday Partly sunny. Highs in the upper 50s.
  • Monday Night Showers likely. Lows in the upper 40s. Chance of precipitation 60 percent.
  • Tuesday Showers likely. Highs in the mid 50s. Chance of precipitation 70 percent.
  • Tuesday Night Mostly cloudy. A 20 percent chance of showers in the evening. Lows around 40 in the suburbs...but in the mid 40s downtown.
  • Wednesday Through Thursday Partly cloudy. Highs in the mid 50s. Lows in the lower 40s.