Tonight: Clouds are slowly increasing, and it will prevent the temperatures from getting as cold as Thursday morning. Lowest tonight falls in the single digits above zero. The wind is light from the southeast.
Friday: We end the work week with a cloudy sky and the temperature of the upper 20s, almost normal for this time of year. The wind picks up before the weekend storm. Winds are from the southeast of 10-20 km / h.
Friday night: Not much change. The sky remains mostly cloudy with a windy southeast wind. The temperature drops a few degrees into the low 20s.
Saturday: The morning hours will be dry. The precipitation will start any time after noon. Northern provinces will have all the snow. Southern provinces, perhaps south of Cedar Rapids, have a rain / snow mix and would change to snow during the evening. Roads will become slippery during the evening. It is windy with gusts from the east around 30 or 35 km / h. High temperatures get hot until the low thirties.
Saturday night: Snow lasts through the night. This is when most congestion will occur. The temperature is in the upper 20s and the wind starts to move to the north as the valley moves east. Breezy conditions will cause snow and reduced visibility.
Sunday: Snow is light in the morning and light at noon. Snow totals will range from 2-7 ”across eastern Iowa. This snow will be a little heavier. More wet wet snow and harder to kick. High temperatures are near 30 with a windy northwest wind.