First Freezing Temps To Hit Philly Region This Week

The coldest air so far this season is headed for the Philadelphia region later this week. Temperatures are expected to drop into the 20s on Friday and the cold air could linger through Saturday.

But you have some time before you need to break out the hat and mittens: the work week starts off unseasonably warm and wet. The high will be near 70 Monday. Showers and possibly a thunderstorm are in the forecast.

"Temperatures will be well above average on Monday ahead of a cold front approaching from the west," AccuWeather Meteorologist Steve Travis said.

By the time Thursday rolls around, though, an arctic front "will be knocking on the door," across the Northeast, the National Weather Service says.

Temperatures will fall off dramatically Friday. The Weather Channel predicts low temperatures in the 20 across the Philadelphia region overnight on Friday. It will stay chilly through Saturday when the low is expected to be in the low 30s.

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The bitterly cold air will pass by the following week, with daytime highs in the 50s and 60s.

Here is the forecast:

Today: Showers likely, mainly between 1 pm and 4 pm. Cloudy, with a high near 67. Southwest wind 8 to 11 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight: A chance of showers before 7 pm. Partly cloudy, with a low around 38. North wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New precipitation amounts to less than a tenth of an inch possible.

Tuesday: A slight chance of rain after 1 pm. Partly sunny, with a high near 53. Northeast wind around 7 mph. Chance of precipitation is 20%.

Tuesday Night: A chance of rain. Mostly cloudy, with a low around 38. North wind 5 to 7 mph. Chance of precipitation is 30%.

Wednesday: A slight chance of rain. Partly sunny, with a high near 52. Northeast wind 6 to 8 mph. Chance of precipitation is 20%.

Wednesday Night: Partly cloudy, with a low around 37.

Thursday: Partly sunny, with a high near 54.

Thursday Night: Mostly cloudy, with a low around 38.

Friday: Mostly sunny, with a high near 50.

Friday Night: Partly cloudy, with a low around 28.

Veterans Day: Mostly sunny, with a high near 46.

Saturday Night: Mostly cloudy, with a low around 33.