Raleigh, NC – Extreme heat will take over the Carolinas and the Mid-Atlantic for the rest of the week and into next week. Cities like Raleigh, Columbia, and Washington, D.C. are bracing for heat index values surpassing 105°F, with little relief overnight. A dome of high pressure will intensify the heat and humidity, following some scattered thunderstorms midweek.
Intense Heat and Humidity Across the Region
According to the National Weather Service (NWS) and the Weather Prediction Center, a Flood Watch is in effect for parts of Maryland, including Colmar Manor, until 8 p.m. Wednesday. However, the weather will quickly transition to extreme heat once the storms pass. From Friday through Tuesday, cities in the region will experience daily highs in the upper 90s to near 100°F, with heat index values pushing into the triple digits, especially during the afternoon.
Areas at Risk and Heat-Related Concerns
In Columbia, SC, highs are expected to reach 94–99°F, with minimal overnight cooling, creating dangerous heat stress for outdoor workers and vulnerable populations. In Valleyview, OH, scattered storms Wednesday will clear up, making way for temperatures of 95°F, with “major” heat risks continuing through the weekend. Raleigh’s heat index could peak at 105°F on Juneteenth, with highs ranging from 95–99°F continuing into the middle of next week.
Safety Tips and Precautions
Residents across the affected areas are urged to limit outdoor activity, especially during the hottest parts of the day. It’s essential to stay hydrated, wear light clothing, and avoid excessive physical exertion. Seniors, children, and other vulnerable groups should be closely monitored. Some counties may open cooling centers to provide relief from the extreme heat.
Future Heat Warnings and Updates
Extreme heat warnings could continue through next week, with little to no relief overnight. Local emergency managers and the NWS will provide updates on the evolving situation, so it’s important to stay informed and follow any instructions or advisories issued.
