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Dangerous heat expected Thursday and Friday; showers possible Wednesday

The National Weather Service warns heat combined with humidity Thursday and Friday could become dangerous quickly for sensitive people and anyone outdoors for long periods.

Published Jun 9, 2026, 8:40 AM EDT | LehighValleyLive

A weak system brings a chance of showers and thunderstorms to the Lehigh Valley region Wednesday, but the primary concern remains dangerous heat developing Thursday and Friday.