The midday 12Z GFS temperature bias for the 6-10-day period during the past 30 days is marginally warm in Southern Canada and the North-central U.S. but overall reasonable skill. In the 11-15-day period, the polar region is much too cool while forecast bias near the U.S./Canada border has averaged too warm.

Meteorological summer (JUN/JUL/AUG) 2024 remains forecast warmer than normal for all but North Dakota with highest hot weather probability likely from the Interior Northwest to Western Texas and in New England. The precipitation outlook is biased wet in the East and Southeast U.S. while West-central States including the western Great Plains are drier than normal.