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The Washington Post

Boston, Philadelphia and Buffalo witnessed their hottest August.

Philadelphia and NYC likely witnessed their warmest September night ever.

High temperatures will be 10 to 15 degrees above normal.

August alone has had 22 90-degree days, the most on record.

Our temperature analysis reveals unmistakable summer warming at all three D.C.-area airports.

It hit 100 both weekend days and never fell below 80.

Humidity is oppressively high from Miami to Marquette, Mich.

Triple-digit heat index values are likely from Richmond to Boston.

A deep plume of tropical moisture will stream toward the D.C. area.

After seven straight days of 95-degree weather, the atmosphere unloaded up to 3-4 inches of rain.

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