Tonight, a wind chill advisory will be in place over Northern Iowa. Wind Chills of -15 to -20 are likely, so make sure to not leave any exposed skin if you plan to be outdoors.
Temperatures are going to remain very cold through the weekend with highs in the teens. By Sunday a good chance for snow will return to the state.
While the snow will generally be light in intensity, it may last from very early Sunday into early Monday. Combining the length of snowfall with the very cold temperatures, light and fluffy snow will occur, allowing for several inches of accumulation in Central Iowa. A fairly widespread blanket of snow around 3" can be expected, including in Des Moines.