PA Weather: Rain In The Forecast For 7 Straight Days

A stormy week of weather lies ahead, according to forecasters. The National Weather Service, in a Hazardous Weather Outlook, warned Monday that the week of stormy weather will begin with Tuesday thunderstorms. Some storms are even possible late Monday night, the NWS said.

Some of the storms may be severe, with strong winds, large hail and flash flooding, forecasters predict.

That will be the beginning of "numerous rounds" of showers and storms expected to continue through the end of the week and into the weekend. "Heavy rainfall is possible during this period, with concerns for flooding increasing during this time," the National Weather Service said.

That means if you have outdoor plans, you'll want to keep a close eye on the forecast.

"After a relatively warm and dry start to the month of May, the pattern has become much more humid and wet heading into the middle of the month across the Northeast," AccuWeather Senior Meteorologist Dan Pydynowski said in a news release.

The weather pattern shaping up will bring showers and thunderstorms to the mid-Atlantic on "a nearly daily basis this week," AccuWeather predicts.

"Moisture flowing northward into the area combined with a stalled front will yield the unsettled weather in places such as Washington, D.C., Baltimore and Philadelphia through much of the week," Pydynowski said.

Here is the forecast:

Today: Mostly cloudy, with a high near 77. Calm wind becoming southwest around 6 mph in the afternoon.

Tonight: A slight chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 62. South wind around 6 mph. Chance of precipitation is 20%.

Tuesday: A chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 88. Southwest wind 5 to 11 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday Night: Showers and thunderstorms likely before 2am, then a chance of showers. Some of the storms could produce heavy rainfall. Cloudy, with a low around 63. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.

Wednesday: A chance of showers. Cloudy, with a high near 73. East wind 6 to 8 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night: A chance of showers, mainly before 2am. Cloudy, with a low around 57. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Thursday: A chance of showers after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 40%.

Thursday Night: Showers likely, mainly after 2am. Cloudy, with a low around 59. Chance of precipitation is 60%.

Friday: Showers likely. Cloudy, with a high near 69. Chance of precipitation is 70%.

Friday Night: A chance of showers. Cloudy, with a low around 58. Chance of precipitation is 50%.

Saturday: A chance of showers and thunderstorms. Cloudy, with a high near 77. Chance of precipitation is 50%.

Saturday Night: A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.

Sunday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Chance of precipitation is 40%.

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