State forecast for South Dakota

Dense fog advisory northeast this morning...

Today...Partly sunny west. Areas of morning fog east. Chance of light snow in the early morning far southeast. Decreasing cloud cover east in the afternoon. Highs from the mid 20s northeast to the mid 30s south and west.

Tonight...Increasing clouds north and west with a slight chance of light snow far northwest. Partly cloudy elsewhere. Lows from the single digits northeast to the upper teens west.

Friday...Mostly cloudy. A chance of light snow north of i-90. Highs from around 20 northeast...To the upper 30s southwest.

Saturday...Mostly cloudy with a slight chance of light snow far west and southeast during the day...Then decreasing clouds at night. Lows zero to 10 above northeast...To the teens west and south. Highs from the teens northeast to the lower 30s west.

Sunday...Partly cloudy. A slight chance of light snow far west. Lows from around 5 above northeast...To the teens west. Highs from the mid 20s northeast to the upper 30s southeast.

Monday...Partly cloudy. Lows from the single digits northeast to the teens south and west. Highs from the teens east to the mid 30s west.