Philadelphia

Philadelphia Weather, A Week of Showers and Thunderstorms Ahead, Says NWS

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Published on August 20, 2025
Philadelphia Weather, A Week of Showers and Thunderstorms Ahead, Says NWSSource: Google Street View

The National Weather Service in Philadelphia predicts a damp and cloudy week ahead. Today, the city woke up to light rain and fog, with a humidity saturation point at 100%, hardly an ideal start for those longing for the crisp, clear dog days of summer. As we head into the afternoon, there's a 60% chance that showers and thunderstorms will interrupt the gray skies, with new rainfall amounts potentially ranging from a tenth to a quarter of an inch, though higher amounts could occur in thunderstorms, according to the NWS Philadelphia's latest update.

Tonight, showers and storms are likely to continue until 3 a.m., after which the outlook starts to slightly clear up towards early morning. With an east wind of around 10 mph, the probability of precipitation is expected to stay solidly at 60%. As the week progresses, Thursday will offer a minor reprieve, presenting a slight chance of showers in the morning hours, and a promise of mostly sunny skies by Friday. The weekend is shaping up to offer a mix of conditions, with sunny forecasts for Saturday and a return to cloud cover and showers on Sunday afternoon. The NWS suggests a 40% chance of precipitation. 

As the new week begins, Monday will offer partly sunny skies with a continued pattern of potential showers and thunderstorms, a 40% chance in fact, that the weather might to quickly change as per the NWS update. Philadelphians will have to navigate between sun and storm as the unpredictable nature of these summer days unfolds. Looking ahead, residents can anticipate a shift towards more stable weather with sunny skies and a high near 78 by Tuesday.