AccuWeather: Overnight Heavy Rain and Thunderstorms

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Low clouds and fog held tough much of today, with some afternoon clearing from the south to the north. But, the stubborn clouds helped shift the earlier concern of severe in our southern areas farther southwest into Virginia, with not enough sun and warming to really destabilize the atmosphere.

TONIGHT: We have mostly cloudy skies with steady rain moving in late tonight with the potential for some heavy rain and overnight thunderstorms, especially south of Philadelphia. It is relatively warm overnight, with an overnight low of 55.

TUESDAY: Allow extra time for your morning commute, with the potential for heavy rain continuing until 8AM. After the morning rain, the rest of Tuesday will be cloudy with some areas of drizzle. Rainfall will average " to 1.25". The high is 64.

WEDNESDAY: We enter a very unsettle period from Wednesday through Friday, as a closed upper level low slowly meanders from the Ohio Valley across the Mid Atlantic to off the East Coast. During this time, clouds will dominate and many areas of lift will rotate around it giving us shots of showers at any time. The high: 64.

THURSDAY: It's mostly cloudy and damp with periods of rain. The high is still cool: 62.

FRIDAY: Some early sun is possible, but clouds will eventually rules the day. Some showers are possible, mainly during the afternoon. The high is another 63.

SATURDAY: We start to break out of our unsettled weather pattern, finally. The high improves to 74.

SUNDAY: It looks pretty good for Mother's Day! Clouds mix with sunny breaks. A few showers are possible with a cold front, but this is not a wash-out. The high improves to 72.

MONDAY: Look for partly sunny skies. The high inches up to a pleasant 74.
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