Scattered showers and isolated thunderstorms will be possible behind a cold front late this evening and tonight. The best chance to get wet will be in southeast KELOLAND, with mostly dry skies for everyone else. Lows will fall to the fifties in many locations with sixties being common in the southeast.
There will be lingering showers Tuesday morning in northwest Iowa, but a lot of these will go away by the afternoon. Temperatures will be cooler and the air will be a lot drier too, highs will be in the low to middle eighties (still above average).
Wednesday will be another above average day with highs in the eighties, but more seasonal air moves in after Wednesday. Highs on Thursday and Friday will be in the seventies. As low pressure moves through the upper plains this weekend, it will try to push the cooler air east AND bring in a chance for showers and storms. As of now, many locations will have a chance to get wet both Saturday and Sunday with highs in the seventies in eastern KELOLAND to the low eighties in central and western South Dakota.