875 FPUS63 KDMX 211725 SFPIA IAZ001>099-212230- State Forecast for Iowa...updated National Weather Service Des Moines IA 1125 AM CST Thu Dec 21 2017 ...Winter Weather Advisory for Portions of Northern and Western Iowa until 9 pm tonight... .TODAY...Cloudy. Drizzle south, light freezing drizzle mixing with or changing to snow north. Light ice accumulations possible west, northwest and north central. Light snow accumulations by late afternoon north. Highs upper 20s northwest to upper 30s southeast. .TONIGHT...Cloudy. A chance of light snow and light freezing drizzle. Light snow accumulations north. Light ice accumulations central. Colder. Lows 10 northwest to low 30s southeast. .FRIDAY...Mostly cloudy in the morning then becoming partly cloudy. A slight chance of light snow north in the morning. Little snow accumulation. Highs mid 20s north to upper 30s southeast. .SATURDAY...Partly cloudy. Lows 10 northwest to mid 20s southeast. Highs 20 north to low 30s southeast. .SUNDAY...Partly cloudy. A chance of light snow south. Lows single digits above zero northwest to 20 southeast. Highs 20 to 30. .CHRISTMAS DAY...Partly cloudy. A chance of light snow. Lows near zero north to mid teens south. Highs 10 north to 30 southeast. $$ MJB/REV