I-55 Weather and Live Radar Updates. Check 12 hour weather, wind, and temperature forecast on the I-55 corridor. Check conditions hour by hour with the time slider, switch between weather, temperature and wind views, and watch live radar for the route.
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Along I-55, expect mostly warm and humid conditions with scattered thunderstorms and rain chances primarily in Illinois and Mississippi. Southern portions near Louisiana and Arkansas will see hot temperatures with mostly clear skies. Winds will generally be light to moderate with occasional gusts above 20 mph in parts of Mississippi and southern Illinois.
