Storms, heat & humidity...
Locally, a frontal boundary will push into and linger across the region for Friday and Saturday. Disturbances moving along the front will provide a periodic risk of showers and thunderstorms. Temperatures are to become increasingly warmer, coupled with a rise in humidity, heading into the weekend.
During the next 5 days, a wet weather pattern will remain locked in from the northern Plains into the East. The axis of heaviest rain (1 to 3 inches, with locally higher totals) will stretch from Montana and the Dakotas into the Mid-Atlantic States.
In contrast, mostly dry weather will prevail from California into the lower Mississippi Valley.
Meanwhile, cool weather will cover the northern Plains and much of the West, while the Midwest will experience a warming trend.