Extreme Heat Watch

Locations Affected

Lancaster, PA ∙ Millville, PA ∙ Saint Clair, PA ∙ Cashtown, PA ∙ Franklintown, PA ∙ Bressler, PA ∙ Hershey, PA ∙ Silver Spring, PA ∙ Milroy, PA ∙ Blue Ridge Summit, PA

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service State College PA 1129 PM EDT Fri Jun 20 2025 ...EXTREME HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH WEDNESDAY EVENING... * WHAT...Dangerously hot conditions with heat index values over 105 possible. * WHERE...A portion of central Pennsylvania. * WHEN...From Sunday morning through Wednesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Heat index values and the associated risk of heat-related impacts will be highest on Monday and Tuesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Check up on relatives and neighbors, and provide pets with adequate water and shelter from the sun. Wear lightweight and loose fitting clothing. In addition to the daytime heat, overnight low temperatures will also be very warm and oppressively muggy.

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