State forecast for South Dakota

Winter storm warning today and tonight for the majority of western south dakota except the far northwest and far southwest...

Winter weather advisory today and tonight for southwestern south dakota...

Winter storm watch for portions of south central tonight into midday wednesday...

Today...Cloudy. Turning windy and colder west. Snow developing west through north...Heavy at times much of west. Widespread fog southeast...With areas of dense fog early with occasional drizzle... Then a chance of light rain...Mixing with light snow mainly late. Snow likely late south central. Highs in the lower 20s northwest... To lower 40s southeast...With temperatures steady to falling most places by afternoon.

Tonight...Snow...Heavy at times west into south central. Snow becoming likely east. Lows 15 to 25 west and north...And 25 to 30 southeast.

Wednesday...Cloudy west...With decreasing clouds north central. Snow south central through southeast...Possibly heavy at times in the morning south central. A chance of snow west. Highs in the 20s to lower 30s.

Wednesday night...Cloudy west to cloudy east. Cold. Lows 8 to 15 above...Except near 20 far southeast.

Extended forecast...

Thursday....Mostly cloudy southwest to mostly clear northeast. Highs in the mid 20s to lower 30s.

Friday...Mostly cloudy northeast to partly cloudy southwest. A chance of snow showers northeast. Lows mainly 10 to 20. Highs in the mid 20s to lower 30s.

Saturday....Mostly clear. Lows in the teens. Highs in the 40s.