Weather Underground Forecast for Thursday, June 28, 2012.

Drier and clearer weather conditions will return to much of the Sunshine State on Thursday as Tropical Depression Debby exits further into the western Atlantic Ocean. Expect a few bands of showers and thunderstorms to persist in southern Florida, while marine conditions fall back to normal levels through the weekend.

To the north, rain in Upper New England will wind down by Thursday afternoon as the low pressure system over Maine lifts slowly into southeastern Canada.

In the Midwest, the frontal system extending across the Upper Midwest will advance eastward and reach across the Great Lakes and Ohio Valley through the Central Plains. Showers and thunderstorms are anticipated along and ahead of this front as the disturbance progresses. Thunderstorms are also expected along the tail of this disturbances in the Central Plains and Central High Plains through the evening. Meanwhile, areas from the Ohio Valley and southern Upper Great Lakes through the Central and Southern Plains will remain hot Thursday, with temperature reaching near and past the century mark. Residents are encouraged to take proper precautions against the heat and follow local Heat Advisories and Excessive Heat Warnings.

To the west of this activity, monsoon moisture will spread across the Southwest and the Central Rockies and create chances of showers and thunderstorms during the afternoon. Temperatures in the Lower 48 states Wednesday have ranged from a morning low of 23 degrees at Stanley, Idaho to a high of 113 degrees at Hill City, Kan.