State forecast for S.D.

Today...Mostly clear early...Then increasing clouds during the afternoon. Highs from near 20 far northeast...To the lower 40s southwest.

Tonight...Partly to mostly cloudy. Slight chance of light snow northwest and northeast. Lows from the lower teens northeast to the lower 20s southwest.

Sunday...Partly cloudy early...Then becoming mostly cloudy. A slight chance of snow or rain northwest during the day. A chance of snow west and central on sunday night...With snow likely east. Highs from the mid 20s far east to mid 40s west.

Monday...Mostly cloudy and windy. Slight chance of snow southwest during the day...With a chance of snow elsewhere. Mostly cloudy with a chance of snow northwest at night...With decreasing clouds elsewhere. Lows from near 10 above far northeast...To the lower 20s southwest into south central. Highs from near 10 far northeast to around 30 far southwest.

Tuesday...Mostly cloudy with a chance of snow. Becoming much cooler. Lows from around 10 below northeast to 10 above southwest. Highs from the single digits northeast...To the lower 30s far southwest.

Wednesday...Mostly cloudy far west with a slight chance of light snow. Partly cloudy elsewhere. Breezy. Lows from around 15 below northeast to near 10 above far southwest. Highs from near 0 northeast to upper 20s far southwest.