State forecast for S.D.

Today...Mostly cloudy with scattered showers and isolated thunderstorms into midday southeast...Otherwise partly cloudy. Partly cloudy west. Highs in the mid 60s northeast to the lower 70s central.

Tonight...Increasing clouds. A chance of thunderstorms west through south after midnight...Reaching far southeast late. Lows in the mid 40s to lower 50s.

Sunday...Mostly cloudy. Thunderstorms becoming likely much of east...With a chance of showers and thunderstorms west. Highs from the lower to mid 60s northeast...To upper 70s far southeast.

Monday...Partly to mostly cloudy. A chance of morning showers east...And a chance of thunderstorms west. Lows from the 40s north and west...To the mid 50s extreme southeast. Highs in the 60s.

Tuesday...Partly cloudy northeast to mostly cloudy south. A chance of light showers far southeast during the day. A chance of showers and thunderstorms late west. Lows mainly in the lower to mid 40s. Highs in the mid 60s to lower 70s.

Wednesday...Partly cloudy west to mostly cloudy east. A chance of showers and thunderstorms. Lows in the upper 40s to lower 50s. Highs in the upper 60s to lower 70s.