A calm and mild day is expected in the Lehigh Valley on Friday, with temperatures reaching the low to mid-60s and light northwest winds. A warming trend will develop over the weekend, with temperatures climbing into the 70s by Sunday ahead of an approaching cold front.
The National Weather Service forecast indicates Friday will feature mostly clear skies and light winds around 10 mph, with low humidity and minimal fire weather risks. Overnight temperatures will drop to the mid-30s to low 40s, with a slight chance of frost in some outlying areas depending on local conditions.
Saturday will see continued mild weather with increasing high clouds and slightly warmer temperatures. By Sunday, a significant weather shift will occur as a strong cold front approaches, bringing the potential for scattered showers Sunday night. Winds on Sunday may gust to around 30 mph, with a southerly flow ahead of the front pushing temperatures into the 70s.
The early part of next week will feature a quick transition, with the cold front passing through Sunday night and another potential weather system arriving Tuesday night. Temperatures are expected to remain near seasonal averages, with Tuesday potentially reaching near 70 degrees before cooling down again.
Long-term models suggest a persistent unsettled weather pattern with periodic cold fronts moving through the region, typical of mid-autumn conditions in Pennsylvania. Residents should be prepared for variable temperatures and occasional precipitation over the next several days.
Follow your local forecast from AccuWeather at lehighvalleylive.com/weather with National Weather Service watches, warnings and other advisories available as they’re issued at lehighvalleylive.com/weather-alerts.
Current weather radar
Generative AI was used to produce an initial draft of this story, which was reviewed and edited by lehighvalleylive.com staff.
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