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Weather Outlook for May 9, 2017

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Posted: May 10, 2017

With many places dropping below freezing early in the week, the chilly air that has been the norm for much of the early part of May will persist at least through the upcoming weekend.

On Tuesday morning, much of northern and central PA observed sub-freezing low temperatures which brought some stress to any exposed plants and vegetation. With respect to precipitation, recent soaking rains have alleviated drought onset concerns over southeastern PA. On Wednesday, clouds will overspread much of the state through the afternoon and evening as a disturbance approaches from the west. Some showers may develop over western/southern Pennsylvania on Thursday with temperatures primarily in the 60's by afternoon. By Friday, showers will cover much of the state. Some models are indicating that a coastal low may develop and move slowly northeastward on Friday and into the weekend. If this would transpire, more numerous showers, or even some steadier periods of rain, could develop on Friday and persist through early Sunday. If the low remains farther off of the East Coast, much of the state would see overcast skies and some scattered showers through the remainder of the weekend. Regardless of any coastal low development, temperatures will be very chilly on Saturday and Sunday. Most places will see low temperatures in the 40's and afternoon high temperatures primarily in the 50's, upwards of 10-15 degrees F below normal high temperatures this time of year. The chance for showers will continue into the first half of next week with slowly moderating temperatures. Current model guidance indicates that the latter half of May will be slightly warmer and wetter than 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

  • Assistant Pennsylvania State Climatologist