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[August 29, 2011] (AP) Heavy rain and strong winds in the Northeast will wind down Sunday night into Monday as Tropical Storm Irene lifts northeastward out of the area and into eastern Canada.

As the system exits, high pressure from the Midwest will build eastward into the Mid-Atlantic and Northeast with a cooler and drier air mass. Daytime highs from the the Northeast through the northern Mid-Atlantic will range from the upper 70s to the upper 80s, while daytime are expected to continue through the midweek.

In the central U.S., periods of showers and thunderstorms will continue in areas of the northern and central Plains as waves of low pressure and frontal boundaries continue to influence these regions through the afternoon. To the south, high pressure will remain the dominant weather feature of the southern Plains and the desert Southwest. This system will prevail across these regions with plenty of heat, allowing daytime highs to climb past the century mark and up to about 110 degrees in some locations. These scorching temperature will cause parts of the southern Plains and Southwest to remain under various heat advisories and excessive heat warnings through Monday evening.

Finally, in the West, daytime heating and moisture will continue to spark areas of scattered thunderstorms in the mountains of the Four Corners.

Temperatures in the Lower 48 states Sunday ranged from a morning low of 35 degrees at Lakeview AWS, Ore., to a high of 111 degrees at Killeen/Fort Hood, Texas

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[Associated Press article from Weather Underground]