Weather Forecasts, Road Conditions, and Weather Radar for Chicago to St. Louis

Current & 7-day weather forecast, road conditions, and weather radar from Chicago, IL, to St. Louis, MO.
All times shown in your local timezone

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Road Trip and Weather Conditions from Chicago to St. Louis

Major Junctions from Chicago to St. Louis

In Illinois:

  • The route south begins by taking I-55 S from Chicago, Illinois.
  • The route has major junctions at I-39 and I-74 in Normal, Illinois.
  • The route has a major junction at I-74 in Bloomington, Illinois.
  • The route has a major junction at I-72 in Springfield, Illinois.
  • The route has a major junction at I-155 in Lincoln, Illinois.
  • The route has a major junction at I-70 near Troy, Illinois.
  • The route has a major junction at I-255 near Collinsville, Illinois.

In Missouri:

  • The route has a major junction at I-44 in St. Louis, Missouri.
  • The route east begins by taking I-55 N from St. Louis, Missouri.

Related Chicago Weather Maps

This map shows the current & 7-day weather forecast, road conditions, and weather radar from Chicago to St. Louis.