The Madden Julian Oscillation appears to be entering a stage where it is so weak that the MJO has little to no effect on the weather pattern here, which would allow the heat wave to stay past its welcome. A big component of this latest MJO development, however, concerns what phase it will end up in after emerging from this very weak stage.
The North Atlantic Oscillation looks to be helping with cool down efforts, staying negative for at least the next week before possibly turning positive. This negative NAO should, however, help the Northeast out in terms of beating the heat.
More on this developing story as information becomes available.