State forecast for S.D.

Dense fog advisory much of the east until mid morning...

Wind advisory northwest to west central plains this afternoon through midnight...

High wind watch northwest to west central plains wednesday...

Today...Areas of dense fog east until mid morning...Otherwise mostly sunny skies becoming mostly cloudy statewide late this afternoon. Becoming windy west this afternoon with a chance of rain or snow developing. Highs 35 to 45...Except 45 to 50 southwest.

Tonight...Cloudy. Widespread snow northern black hills. Snow likely east...Starting as rain southeast this evening. Chance of snow elsewhere. Lows in the upper teens far west...20 to 30 elsewhere.

Wednesday...Cloudy and windy east. Mostly cloudy and very windy west. Widespread snow northern black hills. Snow likely northeast corner at night. Chance of snow elsewhere. Highs in the upper 20s to mid 30s.

Thursday...Partly cloudy southwest. Otherwise cloudy or mostly cloudy elsewhere. Chance of snow...Except dry southwest. Lows in the mid teens to lower 20s. Highs in the 20s.

Friday...Considerably cloudy. Slight chance of light snow. Lows 5 to 15. Highs in the mid teens to lower 20s.

Saturday...Partly to mostly cloudy. Slight chance of light snow west. Lows zero to 10 above. Highs 10 to 15 north to 20 to 25 south.