Lehigh Valley weather: Comfortable temperatures ahead, with rising heat later in week

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pleasant early summer pattern

will bring mild temperatures and low humidity to the Lehigh Valley on Tuesday, July 22, with conditions gradually warming through the week and thunderstorms developing by Friday.

High pressure moving from southeast Canada will deliver comfortable conditions Tuesday, with temperatures in the upper 70s to low 80s and dew points dropping into the 50s. Overnight low temperatures will range from the upper 50s to mid-60s, providing excellent sleeping weather with mostly clear skies.

By Wednesday and Thursday, temperatures and humidity will begin to increase. Residents can expect gradually warming conditions with increasing cloud cover, particularly on Wednesday. Winds will remain light, generally from the northeast at five to ten miles per hour.

The weather pattern will shift dramatically by Friday, with a cold front approaching that could trigger scattered showers and thunderstorms. Heat index values may become high enough to warrant potential heat advisories. Precipitation chances will increase through the weekend, with Saturday and Sunday featuring the highest likelihood of thunderstorms.

Long-range forecasts suggest the cold front may stall near the area through the weekend, maintaining unsettled weather conditions, including heavy rainfall. Residents should monitor local forecasts and be prepared for rapidly changing conditions.

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