Summer's heat and humidity will expand into the East over the Labor Day weekend, while at the same time it turns cooler from the Northwest to the northern Plains.
A series of cold fronts will impact the weather now through the weekend, largely across the northern half of the country.
Just as I head for British Columbia to do an Ironman, the recent heat is leaving and heading onto the Plains, while it cools off in the Northwest for a spell.
A disturbance in Wyoming will be the focal point of unsettled weather into next week from the northern Plains to the Northeast, keeping heat at bay.
Record rains have inundated parts of the mid-Atlantic over the past 24 hours. A disturbance coming from Arizona will produce showers and thunderstorms with locally heavy rain as it heads for the Midwest this weekend.