(Updated 3:57-a.m, Nat’l. Weather Service/Des Moines)

Today: A 20 percent chance of snow before 1pm. Cloudy, with a high near 16. Wind chill values as low as zero. East northeast wind around 7 mph.
Tonight: Mostly cloudy, with a low around 3. Wind chill values as low as -10. East southeast wind around 6 mph.

Thursday: Mostly cloudy, with a high near 24. Wind chill values as low as -5. South wind 6 to 11 mph.
Thursday Night: Mostly cloudy, with a temperature falling to near 21 by 9pm, then rising to around 27 during the remainder of the night. South wind 8 to 11 mph.

Friday: A chance of snow and sleet before noon, then rain and sleet likely between noon and 3pm, then rain and snow likely after 3pm. Cloudy, with a high near 34. South wind 5 to 10 mph becoming west southwest in the afternoon. Chance of precipitation is 70%. Little or no snow accumulation expected.
Friday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 22.

Saturday: Mostly sunny, with a high near 37.