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Extreme Heat Watch

EXTREME HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH FRIDAY EVENING

WHAT:
Dangerously hot conditions with heat index values between 105 and 110.

WHERE:
A portion of central Pennsylvania.

WHEN:
From Wednesday afternoon through Friday evening.

IMPACTS:
Heat related illnesses increase significantly during extreme heat and high humidity events.

ADDITIONAL DETAILS:
Long duration extreme heat risk with little to no overnight relief.

Updated: 
June 29, 2026 at 13:20 EDT
Event Onset: 
July 1, 2026 at 12:00 EDT
Event End: 
July 3, 2026 at 20:00 EDT
Severity: 
Severe
Urgency: 
Future
Certainty: 
Likely
Issued By: 
NWS State College PA
Area(s): 
Adams
Columbia
Cumberland
Dauphin
Franklin
Fulton
Huntingdon
Juniata
Lancaster
Lebanon
Mifflin
Montour
Northumberland
Perry
Schuylkill
Snyder
Southern Centre
Southern Clinton
Southern Lycoming
Union
York