Hour-By-Hour Forecast Of Tuesday Snow

We don't need to tell you it's snowing. You have a window for that. But we can tell you how long you can expect the snow showers to continue Tuesday, and if it will impact the evening commute.

The National Weather Service estimates the snow will linger throughout the day, until about 3 or 4 p.m. It will continue as showers, though, with a total accumulation of less than one inch, forecasters estimate.

Some areas north and west of Philadelphia could see up to three inches, the NWS says.

Here's a map:

The Weather Channel has the same predictions for today's snow: It will linger as showers through the late afternoon.

Temperatures will drop to the 20s tonight, and roadways could remain slick. Use caution.

Here's the hourly forecast for the Philadelphia region, according to the Weather Channel:

• 11:30 a.m. to noon — light snow, 35 degrees
• noon to 5 p.m. — snow showers, 34 to 35 degrees
• 5 p.m to 8 p.m. — cloudy, temperatures dropping to 29 degrees
• 8 p.m. — skies clear, overnight temperatures drop to 21 degrees

Here's the forecast for the rest of the week:

Wednesday: Mostly sunny, with a high near 37. Light and variable wind becoming southwest 5 to 8 mph in the afternoon.

Wednesday Night: Mostly cloudy, with a low around 26. South wind around 9 mph.

Thursday: A chance of rain after 4pm. Mostly cloudy, with a high near 45. Southwest wind 7 to 10 mph. Chance of precipitation is 30%.

Thursday Night: Rain and snow likely, becoming all snow after 1am. Cloudy, with a low around 31. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday: Partly sunny, with a high near 33. Breezy.

PHOTO: National Weather Service