Tonight snow will push south across the state. We will see accumulations of 1 to 3 inches of snow, but much of it will melt as it hits the ground. Accumulations are only expected south of I-80.
In Des Moines, only a half inch to 1" of snow is expected. Totals from 2 to 2.5" are possible from Lamoni/Osceola to Ottumwa. There may be some slick roads early Sunday, but with the warm ground temperatures and highs around 32 on Sunday, the snow will only mainly be left over in the grassy areas by Sunday night.
St. Patrick's Day is looking warm again. Highs will be back to the upper 50s.
Temperatures throughout the week should be in the 40s and 50s, though a few 30s will be possible at times, especially over the northern third of the state.