State forecast for S.D.

Flood watch in effect through 800 pm cdt saturday southeast and south central...

Today...Rain and thunderstorms...Especially central and east. A slight chance northwest. Highs from the mid 60s central to the lower 80s southeast.

Tonight...Partly to mostly cloudy. A chance of thunderstorms central. Showers and scattered thunderstorms east...Especially before midnight. Some thunderstorms could be severe and produce heavy rain. Lows in the 50s...With a few upper 40s far west.

Sunday...Partly to mostly cloudy. Showers ending east with a slight chance for afternoon thunderstorms west and north. Highs mainly in the 70s...With a few lower 80s.

Monday...Partly cloudy. A chance of thunderstorms north and west at night. Lows in the 50s. Highs in the 80s.

Tuesday and wednesday...Partly to mostly cloudy. Chance of thunderstorms. Lows in the mid 40s to 50s west and upper 50s to mid 60s east. Highs in the 70s west and 75 to 85 east.