National Weather Service United States Department of Commerce

Light winds and high moisture content in the lower atmosphere raises the prospects of fog developing prior to sunrise. Two scenarios are in play: 1) High level clouds suppress fog development tonight and leave only cloudy skies or 2) widespread fog develops prior to sunrise and continues into the morning.
An active weather pattern will continue through the end of the weekend. Tonight, chances for patchy fog and low clouds return. From Friday onward, there will be many dry periods as well as chances for showers and storms. Severe thunderstorms are possible Friday afternoon and evening and Saturday evening and overnight.
Another chance for isolated severe storms comes Friday evening along a weak cold front. Due to uncertainty in where storms develop, storms will either track across eastern Iowa or from southeast Iowa into northeast Missouri. Localized strong winds and heavy rain will be the primary threats with any severe storms.
Saturday evening into overnight, thunderstorms, including some isolated severe storms, will move into the region. The primary threats will be localized strong winds and heavy rain. Stay up-to-date with the latest forecasts, and considering adjusting outdoor plans!