I-39 Current Weather Conditions with Radar. See 12 hour weather, wind, and temperature forecast on the I-39 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-39, expect mostly warm and humid conditions with occasional chances of light rain and thunderstorms in parts of Wisconsin. Winds will generally be moderate, with some gusts reaching over 20 mph in Illinois. Skies will vary from mostly cloudy to clear in southern areas by evening.
