Sunday Discussion (8/30/26): Major Late-Summer Warmup on the Way

By: Lead Forecaster Daniel Crawley

The weather pattern across the North Carolina Foothills and western Piedmont is about to undergo a significant change. After a relatively seasonable and unsettled stretch, hotter conditions are expected to develop going into the first several days of September.

An expansive 500 mb ridge that has kept the Central US hot for a large part of August will flex its muscles and shift east bringing above-normal temperatures to the Southeast. 

By Monday, the ridge begins to strengthen and temperatures respond quickly. Forecast highs reach the low-to-mid 90’s with mostly sunny skies and very limited precipitation. 

The current forecast suggests Tuesday through Thursday could be the core of the late season heat wave. Temperatures will be in the mid 90’s with lows at night in the 70’s, some 60’s are expected in sheltered areas near the Blue Ridge.

Heat index values on the hottest days will be dependent of how much mixing of drier air from aloft can translate to the surface during the afternoon. Some low 100-degree heat index values are certainly possible east of the mountains.

The heat and humidity combined will impact those who work outdoors along with those who participate in athletics during the afternoon and evening. Please hydrate accordingly at least 24 hours before the hottest anticipated conditions. 

Tuesday is the first day of September and the beginning of Meteorological Autumn. The temperature averages in our region on September 1 is the mid 80’s during the day and mid 60’s at night. Some locations may reach or exceed norms by 10 degrees this upcoming week.