The National Weather Service in Chicago has issued a dense fog advisory until 9 a.m.
People living near the lake will see heavier fog than others, and visibility will be less than one quarter mile.
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Travelers are urged to use additional caution near the lake, slow down and use their headlights.
The fog is expected to lift by 9 a.m. Temperatures are expected to reach 73 degrees this afternoon, but a 40 percent of thunderstorms. Temperatures will dip back to 57 degrees tonight.
For more information, please view the National Weather Service website.