State forecast for S.D.

Today...Mostly cloudy early southeast...Otherwise clear to partly cloudy. An isolated morning shower and a slight chance of afternoon thunderstorms southwest. Highs from the mid 70s northeast...To the lower to mid 90s southwest.

Tonight...Mostly clear east. Increasing clouds west. Slight chance of thunderstorms west and central. Lows in the 50s east...And upper 50s to mid 60s west into central.

Friday...Partly to mostly cloudy. A chance of morning thunderstorms north...Then a chance of thunderstorms statewide...Especially at night. Highs from the mid to upper 70s northeast...To 95 to 100 southwest.

Saturday...Partly to mostly cloudy with a chance of thunderstorms. Lows from the mid 50s far northeast to the upper 60s south central. Highs from around 70 northeast and east central...To near 100 southwest.

Sunday...Partly cloudy. A chance of thunderstorms far east. A slight chance of afternoon and nighttime thunderstorms west and south. Lows in the upper 50s to upper 60s. Highs from near 80 far east to the lower 90s central and lower missouri valley.

Monday...Partly cloudy with a chance of thunderstorms. Lows in the upper 50s to mid 60s. Highs from the 80s east to the 90s west.