National Weather Service United States Department of Commerce

Snow will move through Iowa later today, beginning in the north this afternoon, peaking in the late evening, and ending by around midnight. Accumulations are expected mainly across northern and northeastern Iowa, where 1-3 inches is forecast with locally higher amounts possible. Light winds will mitigate impacts, but snow covered roads may still cause travel difficulties.
A front will cross Iowa Wednesday afternoon, bringing gusty northwest winds and scattered snow showers. While any snow accumulations will be very light, the strong winds will cause blowing snow both within snow showers and from snow already on the ground. This may reduce visibility and blow snow back onto roads, leading to slick travel conditions.
We see slightly more seasonal temperatures through mid-week, before much colder air returns to end the week with wind chill values dropping into the -20s to -10s. Light snow will be possible over northern Iowa late Tuesday then again on Wednesday. Breezy winds on Wednesday may lead to reduced visibility in snow showers.