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Weather Outlook for June 21, 2017

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Posted: June 21, 2017

Much of western PA has observed between two and four inches of rain since last week, while much of eastern PA has seen between one-half to one inch of rain during the same period. Because of the wet late Spring/early summer, all of the state has been lifted from abnormally dry or moderate drought status, according to the US Drought Monitor. The best chance for widespread, organized precipitation over the next week will come late this week and into the weekend.

While a few scattered showers and thunderstorms will linger in the state on Wednesday afternoon and evening, much of Thursday and the early half of Friday will be dry. By Friday afternoon, more widespread showers and thunderstorms will arrive as a front slowly traverses the region. A tropical disturbance (likely to become Tropical Storm Cindy later Tuesday or early Wednesday) in the Gulf of Mexico could potentially enhance rainfall associated with this front on Friday and into Saturday. It is unclear whether this disturbance will interact with the front, but if it does, showers and thunderstorms with heavy rains will threaten much of PA. By Sunday, any showers and storms should end, and cooler, drier weather will prevail through the early part of next week. A small disturbance may bring some scattered showers on Monday but most of the state will remain dry through next Tuesday. Through next Tuesday, temperatures will hover near seasonal levels (upper 70’s to upper 80’s for high temperatures and upper 50’s to mid-60’s for low temperatures).

Over the next four to six weeks, current model guidance indicates that temperatures and precipitation will be near seasonal levels (no strong signal of warm, cold, wet, or dry compared to normal).

For updated weather information every weekday, watch Penn State's Weather World on WPSU-TV at 5:30pm and PCN-TV at 5:45pm.

Contact Information

  • Pennsylvania State Climatologist