WEATHER ALERT

Allentown, PA 18102

28°F

Clear Feels like 19°
  • 10 mph N
  • 58%
  • 15°
  • 30.29 in
  • 6:53 AM
  • 5:39 PM

TONIGHT

29°F
Snow, Heavy at Times

  • 9 mph W
  • 100%
  • 5:39 PM
  • Saturday

    38° / 29°
  • Sunday

    46° / 29°
  • Monday

    48° / 45°
  • Tuesday

    67° / 57°
  • Wednesday

    70° / 46°
  • Thursday

    51° / 34°

10 Day Forecast

  • Saturday

    38° / 29°
    Increasing Clouds; Snow Late 40%
  • Sunday

    46° / 29°
    Mostly Sunny 0%
  • Monday

    48° / 45°
    Cloudy with a Bit of PM Rain 60%
  • Tuesday

    67° / 57°
    Warmer; Few Breaks of Sun 20%
  • Wednesday

    70° / 46°
    Cloudy to Partly Sunny; Warm 20%
  • Thursday

    51° / 34°
    Partly Sunny and Cooler 0%
  • Friday

    48° / 40°
    Mostly Cloudy 20%
  • Saturday

    49° / 35°
    Sun and Clouds 0%
  • Sunday

    49° / 26°
    Mostly Cloudy with Some Rain 40%
  • Monday

    49° / 36°
    Mostly Cloudy 20%
Weather Forecast Discussion

Colder tonight then accumulating snow starting late Saturday

Snow melts quickly with a warm-up early next week

TONIGHT: Brisk and noticeably colder with clearing skies. Low: 23

SATURDAY: Increasing clouds and much colder with snow arriving toward evening. High: 38

SATURDAY NIGHT: Period of snow, some heavy, tapering off before daybreak. Total accumulations of 3 to 6 inches for most, 1 to 3 inches far north and south. Low: 29


***WINTER STORM WATCH IN EFFECT FOR CARBON, MONROE, LEHIGH, NORTHAMPTON, BERKS, CHESTER, BUCKS, MONTGOMERY, MERCER, HUNTERDON, WARREN, AND SUSSEX COUNTIES FROM 4 PM SATURDAY UNTIL 4 AM SUNDAY***

***WINTER WEATHER ADVISORY IN EFFECT FOR SCHUYLKILL, LEBANON, AND LANCASTER COUNTIES FROM 4 PM SATURDAY UNTIL 2 AM SUNDAY***

 

We managed to squeeze in another mild day on Friday with highs again above 50 degrees, but it wasn’t as warm as Thursday was and the rain was more stubborn than expected. Showers lingered into much of the day, not fully sweeping clear of the area until the late afternoon and early evening hours. Skies are clearing overnight as some much colder air settles in for a brief stay, but just long enough to provide the opportunity for some accumulating snow starting late Saturday. The snow, like the cold, won’t last long and whatever snow that does stick Saturday night will also immediately start melting on Sunday as another warm-up begins, one that may feature 70-degree warmth by the middle of next week.

Saturday will start out chilly with plenty of sunshine, but it won't end that way as the clouds will start rolling in during the afternoon. High temperatures on Saturday will remain on the chilly side of average by roughly 5 degrees as they peak in the mid and upper 30s. Then around nightfall, some snow will begin overspreading the area from southwest to northeast as our high pressure exits to the northeast and our next area of low pressure pushes in from the Tennessee Valley. This low is a fast-moving system, but it will contain good dynamics. This means that while the snow with this system will only last 6 to 8 hours, parts of the area will see 1" or more snowfall rates per hour. 

Along with those heavy snowfall rates, we'll also see the snow mix with sleet and rain in the Delaware Valley and points south and east. That mixing may extend as far north as the I-95 corridor, but we don't expect the line to advance north of that. Far enough south into parts of southern New Jersey, they will primarily see mixing or plain old rain for the majority of this event. Further north and northwest in northern parts of the parts of the Poconos and Schuylkill County, the precipitation will be much less than what we see along the I-95 corridor. So while it will be colder in these locations, snowfall amounts will be lower because they just won't have as much moisture to work with. With all that said, from the southern Poconos and northwest New Jersey through the Lehigh Valley, Slate Belt, Berks County and Bucks/Mont to the northern Delaware Valley, we're looking at 3 to 6 inches of snow with locally higher amounts possible. From the Delaware Valley and points south we're looking at 1 to 3 inches of snow with a coating to an inch in far southern New Jersey. The northern Poconos and Schuylkill County can also expect 1 to 3 inches of snow for the reason explained earlier. 

Saturday night's snow will move out around or a few hours after midnight, well before the sun rises. So while there will still be snow on the roads, conditions on the roads should quickly improve on Sunday thanks to the road crews, sunshine returning as high pressure builds in, and temperatures rising into the mid 40s. In fact, Sunday afternoon is looking awfully nice by mid-February standards. 

The President's Day Weekend will end on Monday with mild temperatures and a warm front lifting north through Pennsylvania. This will lead to some rain throughout the day, but particularly in the afternoon. By Tuesday this warm front will be well to our north leading to an extremely warm day for February as highs soar into the mid 60s. A shower is still possible Tuesday, but most of the day is dry with a few breaks of sun possible. Wednesday will be another extremely warm day for February with highs perhaps flirting with 70 degrees but there could be a better chance for some late day or overnight showers with a cold front.  Cooler air will follow late in the week, but temperatures remain above average for this time of year.


Interactive Radars

STORMCENTER UPDATE

Hurricane Info

Tropical Cyclone Kelvin

  • -18.9N, 239.6E
  • 40KT
  • 2KT
  • MB
More Info

Reading, PA 19605

30°F

Feels like 22°
  • 9 mph NNW
  • 66%
  • 20°
  • 30.28 in
  • 6:54 AM
  • 5:41 PM

TONIGHT

30°F

  • 4 mph SW
  • 100%
  • 5:41 PM
  • Saturday

    39° / 30°
  • Sunday

    47° / 30°
  • Monday

    49° / 46°
  • Tuesday

    68° / 58°
  • Wednesday

    71° / 47°
  • Thursday

    52° / 35°

This Week's Circulars

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Historical Averages

High Low
Current 38°F 29°F
Average 39°F 21°F
Record 67°F February 17, 1921 -4°F February 17, 1922

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