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Allentown, PA 18102

32°F

Overcast Feels like 32°
  • 3 mph NNE
  • 82%
  • 27°
  • 30.37 in
  • 7:22 AM
  • 5:00 PM

TONIGHT

27°F
Periods of Snow

  • 4 mph VAR
  • 100%
  • 5:00 PM
  • Tuesday

    34° / 27°
  • Wednesday

    32° / 14°
  • Thursday

    34° / 18°
  • Friday

    39° / 25°
  • Saturday

    48° / 32°
  • Sunday

    52° / 35°

10 Day Forecast

  • Tuesday

    34° / 27°
    Light Snow or Flurries 60%
  • Wednesday

    32° / 14°
    AM Snow; PM Sun 70%
  • Thursday

    34° / 18°
    A Few Clouds, Brisk and Cold 0%
  • Friday

    39° / 25°
    Sunny to Partly Cloudy 0%
  • Saturday

    48° / 32°
    Partly Sunny and Milder 0%
  • Sunday

    52° / 35°
    Variably Cloudy and Mild 0%
  • Monday

    52° / 34°
    Mild; Chance of PM Rain 30%
  • Tuesday

    44° / 27°
    Mostly Cloudy with AM Rain 40%
  • Wednesday

    38° / 19°
    Clouds and Sun; Seasonable 0%
  • Thursday

    38° / 24°
    Mostly Cloudy 0%
Weather Forecast Discussion

Steadier snow develops overnight leads to messy morning commute

50-degree warmth returns for the weekend

TONIGHT: Snow of varying rates, some heavy enough to cause slick spots on untreated surfaces. Low: 27

WEDNESDAY: Cloudy, brisk and cold with snow showers around during the morning, a few peeks of sun in the afternoon. Total snow: 3-6” north, 1-3” south. High: 32

WEDNESDAY NIGHT: Turning out mostly clear and colder. Low: 14

***WINTER STORM WARNING FOR CARBON, MONROE AND SUSSEX COUNTIES UNTIL 11 AM WEDNESDAY***

***WINTER WEATHER ADVISORY FOR PIKE, AND LUZERNE COUNTIES UNTIL 5 AM WEDNESDAY***

***WINTER WEATHER ADVISORY FOR BERKS, LEHIGH, UPPER BUCKS, UPPER MONTGOMERY AND WESTERN COUNTIES UNTIL 7 AM WEDNESDAY***

***WINTER WEATHER ADVISORY FOR NORTHAMPTON AND WARREN COUNTIES UNTIL 11 AM WEDNESDAY***

***WINTER WEATHER ADVISORY FOR HUNTERDON COUNTY UNTIL 12 PM WEDNESDAY***

***WINTER WEATHER ADVISORY FOR SCHUYLKILL, LANCASTER, AND LEBANON COUNTIES UNTIL 1 PM WEDNESDAY***

Tuesday was vastly different experience from northwest to southeast across the region. While many of us woke up to a dusting of snow this morning, that quickly came to an end for points south and east of Blue Ridge. However, closer to Blue Ridge and points north and west hung on to a persistent light snow all day. On the flip side of that coin, parts of the Delaware Valley saw temperatures in the 40s with some sunshine poking through the clouds at times.

The already occurring or impending snow is due to a combination of a weak clipper system approaching from the west and a new coastal low that is developing just offshore. The interaction between the two will eventually produce a shield of some steadier light to moderate snow, especially through the overnight into the early morning hours on Wednesday. While travel has already been slick points west, the steadiest snows and slickest travel will be overnight into early Wednesday morning, when most of the accumulating snow is expected. The Wednesday morning commute is likely to be negatively impacted by snow, so plan accordingly.

So expect cloudy skies today with some light snow and flurries from the initial clipper to continue in areas that have already seen some light snow thus far today. However, the process may be slow to bring that snow much farther southeast through the day today and most of the light snow may actually remain to the northwest along the Interstate 81 and 80 corridors and into the Poconos as well as the western end of Interstate 78 through Berks and Lebanon counties for a good chunk of the day. That area of snow should expand this evening and overnight, but much of the day may actually remain dry the farther south and east you travel towards the I-95 corridor. Not only will southeastern areas remain mostly dry, but the cold will ease enough so that highs approach 40 degrees and the onset of the precipitation could be rain and not snow towards Philadelphia and Trenton. However, for most of us temperatures remain cold in the low to mid-30s and mostly snow is expected once the precipitation begins.

The steadier snows will pivot east through the Lehigh Valley, Berks County, the Poconos, and northwestern New Jersey overnight before tapering off from west to east Wednesday morning. It is in these areas where the highest snow totals are forecast, as areas along and north of Interstate 78 should see 3 to as much as 6 inches of snow, with the best chance for 6 inches towards the Poconos into Sussex County New Jersey. Farther south and east towards areas north and west of Interstate 95, accumulations of 1 to 3 inches are expected. South and east of the big cities towards central and southern New Jersey and Delaware, any accumulation should be under an inch.

Snow will taper off early Wednesday morning with some sun peeking through later in the afternoon as our clipper and coastal low exit stage right out to sea.  It will be a little breezy as they depart, with a brisk northwest wind around 10 to 20 miles-per-hour leading to some areas of blowing snow. Temperatures will hold steady around the freezing mark on Wednesday, although the breeze will keep wind chills below freezing throughout the day. As skies clear Wednesday night, expect cold overnight lows to drop into the teens, with wind chills likely as low as the single digits.

The rest of the forecast is largely quiet and dry, with temperatures the main variable that will change day to day. Expect plenty of sunshine for the rest of the week as high pressure builds in, with seasonably cold highs in the mid-30s on Thursday and some slightly less cold upper 30s on Friday. Winds remain a little brisk from the west, but as those winds gradually shift from the southwest by the weekend, we’ll reap the benefits of the milder wind direction. Expect some extra clouds to increase by the weekend but highs also increase to near 45 degrees by Saturday, and likely top 50 by Sunday and Monday. While the weekend looks increasingly mild and dry, including for the big NFC Championship Game in Philadelphia Sunday evening, some rain is possible by Monday as a cold front approaches.  

The two-week deep freeze and then the recent thaw has created an ice jam on the Delaware River near Trenton, and flood warnings continue for both sides of this portion of the Delaware River in Bucks and Mercer counties. Expect some flooding and possible road closures along the river until the ice jam dislodges. A river flood warning continues for this area until at least early Tuesday afternoon.


Interactive Radars

STORMCENTER UPDATE

Hurricane Info

Tropical Cyclone Berguitta

  • -18.2N, 299.2E
  • 80KT
  • 4KT
  • MB
More Info

Reading, PA 19605

40°F

Overcast Feels like 40°
  • 3 mph NNE
  • 70%
  • 31°
  • 30.36 in
  • 7:23 AM
  • 5:03 PM

TONIGHT

28°F
Periods of Snow

  • 5 mph NNW
  • 100%
  • 5:03 PM
  • Tuesday

    35° / 28°
  • Wednesday

    33° / 15°
  • Thursday

    35° / 19°
  • Friday

    40° / 26°
  • Saturday

    49° / 33°
  • Sunday

    53° / 36°

This Week's Circulars

Regional Radar Image

Historical Averages

High Low
Current 34°F 27°F
Average 34°F 19°F
Record 62°F January 16, 1995 -2°F January 16, 1912

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