National Weather Service United States Department of Commerce

Areas of Extreme Heat and Excessive Rainfall Potential

Dangerous and extreme heat will remain across portions of the central U.S. this week, persisting across the mid to lower Mississippi Valley, Gulf Coast, southern Plains and portions of Texas. A heat wave over the Southwest U.S. will peak this weekend. Heavy to excessive rainfall may produce flash flooding from the Delmarva Peninsula north into the Hudson Valley today and tonight. Read More >

Humid conditions will continue the remainder of the work week but temperatures will be closer to normal. There is a chance of rain late Thursday night through Friday night for the area.
[11:30 AM 7/28/2026] After a couple days of extreme heat on July 26 and 27, here are maximum high temperatures and heat indices observed across the area. All major observation sites saw heat indices above 110 degrees!
[11:30 AM 7/28/2026] Accompanying the extreme heat was oppressive humidity levels with dew points hitting the low to mid-80s area-wide. Dubuque, Iowa also hit their record high dew point of 83 degrees on the afternoon of July 27!