Timeline For Monday Storms To Break PA Heat Wave

PHILADELPHIA, PA — Monday will be a bit rocky as far as the weather goes, with multiple hazards — including strong storms, extreme heat, and a flooding risk — currently being monitored by meteorologists with the National Weather Service.

Forecasters are predicting severe storms Monday afternoon and evening will break the heat wave that has gripped the Philadelphia region since the weekend. The heat will continue Monday, but won't be quite as intense as Saturday and Sunday, when the heat index topped 110.

A heat advisory is in place until Monday night. High temperatures Monday will spike to the low 90s, with the heat index up to 100.

A flash flood watch is also in place through Tuesday morning due to anticipated torrential rain.

The storms are expected after 3 p.m. and could go through the night. The highest likelihood of strong storms in the Philadelphia region is between 4 and 7 p.m., according to The Weather Channel.

Some storms could be severe, with damaging winds and heavy rain, the NWS said. Rainfall totals of 1 to 2 inches are likely, with up to 4 inches possible. "This could lead to flash flooding," the NWS warned.

Pregnant Woman, Child Killed In PA Flash Floods

The rain will linger through Tuesday, but by Wednesday expect clear skies and seasonal temperatures in the 80s. An early look at the weekend shows it should be a pleasant one, and cooler than last weekend.

Here is the local forecast:

Today: Showers and thunderstorms likely, mainly after 3pm. Some storms could be severe, with damaging winds and heavy rain. Partly sunny, with a high near 89. East wind around 6 mph becoming south in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Tonight: Showers and possibly a thunderstorm. Some storms could be severe, with damaging winds and heavy rain. Low around 68. West wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

Tuesday: Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rain. Cloudy, with a high near 79. North wind 6 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday Night: A chance of showers before 9pm. Mostly cloudy, with a low around 63. Calm wind becoming north around 5 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday: Mostly sunny, with a high near 82. North wind 3 to 6 mph.

Wednesday Night: Partly cloudy, with a low around 62.

Thursday: Sunny, with a high near 84.

Thursday Night: Mostly clear, with a low around 64.

Friday: Sunny, with a high near 87.

Friday Night: Mostly clear, with a low around 66.

Saturday: Sunny, with a high near 87.

Saturday Night: Mostly clear, with a low around 67.

Sunday: Sunny, with a high near 88.