Data provider: ECMWF ENS 00z

Data aggregator / processor: Weather100.com

Data mapping platform: WeatherMapping.com

This map shows the forecast 7-day average maximum temperature rank across the CONUS compared against the same time period over the last 100 years.

A rank of 1 means the forecast is the hottest for this 7-day period in the last 100 years.

A rank near 100 means it is among the coolest.

This is not a raw temperature map, it is showing how unusual the forecast heat is compared to history for this time of year.

Takeaway: the eastern half of the U.S. well be heavily locked into top-tier heat, with large areas ranked 1–5, especially across the Midwest, Great Lakes, Ohio Valley, Appalachians, Northeast, and Southeast.

The West is the opposite story, with much cooler relative rankings across parts of the Rockies, Great Basin, and Southwest.