Extreme Heat Warning

Locations Affected

Lancaster, PA ∙ Fivepointville, PA ∙ State Line, PA ∙ Fairfield, PA ∙ Bendersville, PA ∙ Wellsville, PA ∙ Paxtonia, PA ∙ Fort Indiantown Gap, PA ∙ Airville, PA ∙ Brownstown, PA

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service State College PA 226 AM EDT Sun Jun 22 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT WEDNESDAY FOR THE LOWER SUSQUEHANNA VALLEY... * WHAT...Dangerously hot conditions with heat index values over 105 expected for the Lower Susquehanna Valley. * WHERE...Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon, Perry, and York Counties. * WHEN...From 11 AM this morning to 8 PM EDT Wednesday. * 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... Drink plenty of fluids, stay out of the sun, and stay in an air-conditioned room. Check up on relatives and neighbors, and provide pets with adequate water and shelter from the sun. Extreme Heat can be life-threatening among at-risk populations, such as children, the elderly, and those with pre-existing health conditions. In addition to the daytime heat, overnight low temperatures will also be very warm and oppressively muggy.

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