Heat dome to bring extreme temperatures back to Buncombe County
Heat returns to Buncombe County with Asheville forecast near 90 by Monday, after thunderstorms Friday through Sunday and an 83-degree cool spell on June 21.
Heat was building back over Buncombe County Thursday, June 25, with the Asheville forecast calling for highs of 86 degrees Thursday, 87 Friday, 89 Saturday, 88 Sunday and 89 Monday, while showers and thunderstorms were still possible from Friday through Sunday. The National Weather Service said dangerous heat would build across the southern U.S. Friday into the weekend.
Asheville was not coming off a blistering stretch. The National Weather Service climate report for Asheville Regional Airport showed a maximum of 83 degrees on June 21, a minimum of 57, and no significant weather observed that day. That makes the next warm-up feel abrupt, especially in a county where a shaded morning can turn into a hot afternoon in a matter of hours.
National Weather Service forecasters in Greenville-Spartanburg said they issue excessive heat warnings for western North Carolina. On the agency’s heat page, an Extreme Heat Warning can be issued when heat index values reach 110 degrees or maximum temperatures reach 105 degrees, while a Heat Advisory can be issued when heat index values reach 105 degrees or maximum temperatures reach 103 degrees. Those thresholds matter because heat illness can escalate quickly once the air stops cooling off and the body cannot recover overnight.
Asheville’s June climate record, which runs from 1869 through 2025, shows how hot late June can get even in the mountains. Daily record highs reach 98 degrees on some late-June dates, and Asheville’s warmest June on record came in at 76.8 degrees in 1952. The record book does not set the forecast, but it shows that Buncombe County can move from comfortable weather to dangerous heat fast when a heat dome settles in.
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