North Carolina Weather Alert: July 17th Thunderstorm Risk for Raleigh—Plan Around Heat Index Near 103° on U.S. 1

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Raleigh, North Carolina – Searing July heat is set to return with a vengeance as thunderstorms barrel into the Raleigh area Thursday, July 17th, threatening travel disruptions and outdoor plans across Wake County. Afternoon highs will climb to 93°F with a heat index that could make it feel as hot as 103°, right as storms become likely after 2 p.m.

According to the National Weather Service, the most active weather window stretches from Thursday afternoon through evening, with damaging winds and heavy downpours possible across Raleigh, Cary, and along major routes like U.S. 1 and I-40. The chance of rain hits 30% by late day, and even brief storms could bring dangerous lightning or localized flooding. Residents should monitor alerts, avoid unnecessary outdoor activity during peak heat, and use caution on roads if storms strike. Drink plenty of water and check on vulnerable neighbors.

Friday will bring another round of afternoon storms and highs near 91°F, with muggy conditions persisting. Overnight lows will struggle to fall below the mid-70s, keeping the region uncomfortably warm. Looking ahead, Saturday’s forecast features more of the same—highs in the mid-90s with continued thunderstorm chances. Sunday and Monday each bring a 40% risk of storms, with heat and humidity remaining stubbornly in place.

Stay plugged in for additional advisories as the unsettled pattern continues. Expect more summer weather alerts and sudden downpours into early next week.


Five Day Bullet Point Forecast: Raleigh, NC

Thursday, July 17th:

  • High 93°F, heat index to 103°F
  • Chance of thunderstorms after 2 p.m. (30%)
  • Winds SSW 9 mph

Friday, July 18th:

  • High 91°F, continued humidity
  • Afternoon storms possible (30%)
  • Winds W 6 mph

Saturday, July 19th:

  • High 95°F, mostly sunny early
  • 40% chance of afternoon/evening storms
  • Warm overnight, low 74°F

Sunday, July 20th:

  • High 94°F, humid
  • 40% chance of thunderstorms, mainly afternoon
  • Muggy night, low 75°F

Monday, July 21st:

  • High 93°F, scattered storms (40%)
  • Partly sunny, steamy conditions continue
  • Lows in mid-70s

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