Following significant flooding across parts of the Northeast, the region is facing another round of heavy rainfall on Monday, potentially leading to further flash flooding, particularly in New England. Meanwhile, the Central and Southern Plains, Midwest, Gulf Coast, and East Coast are bracing for potential severe storms.

Upstate New York, Vermont, New Hampshire, and Maine are expected to receive between 2 and 5 inches of rain through Tuesday morning. Numerous flash flood warnings and flood watches have been issued across affected counties due to the anticipated rainfall.

National weather forecast for Monday, July 10. (Fox News)

Projected rainfall totals for the Northeast through Tuesday morning. (Fox News)

In contrast to the Northeast's deluge, extreme heat will be the dominant weather story in the Southwest, South, and Florida this week. Temperatures are predicted to exceed 100 degrees, coupled with high humidity, creating hazardous conditions for extended outdoor activities.

Forecast high temperatures for Tuesday. (Fox News)

Today, the heat index is anticipated to reach 106 degrees in Naples, Florida, 103 in Orlando, and 102 in Miami. By Tuesday, temperatures are projected to climb to 111 degrees in Phoenix, 109 in Las Vegas, and 103 in San Antonio.