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Allentown, PA 18102

30°F

Overcast Feels like 23°
  • 7 mph E
  • 56%
  • 16°
  • 30.51 in
  • 7:23 AM
  • 4:59 PM

TONIGHT

22°F
Mst Cloudy; Late Snow/Flurries

  • 4 mph E
  • 20%
  • 4:59 PM
  • Monday

    28° / 22°
  • Tuesday

    35° / 27°
  • Wednesday

    34° / 16°
  • Thursday

    34° / 18°
  • Friday

    39° / 25°
  • Saturday

    47° / 32°

10 Day Forecast

  • Monday

    28° / 22°
    Plenty of Clouds; Cold 0%
  • Tuesday

    35° / 27°
    Cloudy; Light Snow 90%
  • Wednesday

    34° / 16°
    AM Snow Shower; PM Sun 40%
  • Thursday

    34° / 18°
    Mostly Sunny; Seasonable 0%
  • Friday

    39° / 25°
    Mostly Sunny; Less Cold 0%
  • Saturday

    47° / 32°
    Mostly Sunny; Milder 0%
  • Sunday

    52° / 35°
    Partly Sunny and Mild 0%
  • Monday

    54° / 34°
    Mild; Chance of Rain 30%
  • Tuesday

    42° / 27°
    Variable Clouds; a Shower 30%
  • Wednesday

    36° / 19°
    Mostly Cloudy 0%
Weather Forecast Discussion

Snow Tuesday into early Wednesday with 1-3" south, 3-6" north

Another thaw arrives by the weekend

TONIGHT:  Mostly cloudy and cold; a few flurries or a snow shower in parts of the area.  Low: 24

TUESDAY:  Cloudy with some snow and flurries.  High: 35

TUESDAY NIGHT:  Cloudy with snow tapering at times; total accumulation 1-3" south, 3-6" north.  Low: 27


***WINTER WEATHER ADVISORY FOR UPPER BUCKS, UPPER MONTGOMERY, WESTERN CHESTER, HUNTERDON, AND SOMERSET COUNTIES FROM NOON TUESDAY TO 10AM WEDNESDAY***

***WINTER WEATHER ADVISORY FOR BERKS, LEHIGH, NORTHAMPTON, CARBON, MONROE, SUSSEX, AND WARREN COUNTIES FROM 5AM TUESDAY TO 6AM WEDNESDAY***

***WINTER WEATHER ADVISORY FOR PIKE AND LUZERNE COUNTIES FROM 4AM TUESDAY TO 5AM WEDNESDAY***

***WINTER WEATHER ADVISORY FOR SCHUYLKILL, LEBANON, AND LANCASTER COUNTIES FROM 5AM TUESDAY TO 1PM WEDNESDAY***

***FLOOD WARNING FOR SOUTHWESTERN MERCER COUNTY AND EAST CENTRAL BUCKS COUNTY FOR AN ICE JAM ALONG THE DELAWARE RIVER NEAR TRENTON THROUGH MONDAY EVENING***


It was a mainly cloudy and cold but also a dry Monday to start off the week, as low clouds persisted much of the day and the lack of sunshine plus a northeasterly breeze combined to keep temperatures below freezing for the third straight day.  A somewhat cold pattern will continue to control our weather through Thursday, but the cold and wind will ease a bit compared to the weekend and we can expect a more seasonably cold air mass through Thursday.

Another thaw awaits for the weekend, but we'll have to first get through an impending round of accumulating snow for Tuesday, Tuesday night, and early Wednesday morning.  While not a major storm, the entire area should see at least a few inches of snow, with amounts increasing the farther north you travel.  Expect travel to be impacted with increasingly slick roads later Tuesday through early Wednesday, and winter weather advisories have been issued for a large part of the area, mainly north and west of the Delaware Valley through the northwestern part of New Jersey.  

Clouds will remain in place overnight, with a few snow showers and flurries developing towards morning, especially points northwest as low pressure tracks our way from the west. The low is part of a clipper system that will be the reason for the upcoming snow.  The clouds will help to keep temperatures from dropping much overnight, so instead of the single digits and teens we've seen over the last few nights, lows tonight will remain in the lower 20s. 

Our clipper will slide through and off the coast Tuesday into Tuesday night, bringing some periods of light snow with it for that time frame with some occasional bursts of moderate snow possible.  The steadiest snow will fall later Tuesday into Tuesday night, ending early Wednesday morning from west to east.  The wild card with this set up is for the clipper to help spawn a weak coastal low once it hits the ocean Tuesday evening.  While this coastal low would likely develop too slowly to morph into a major winter storm, it will throw some additional light snow back into parts of Pennsylvania and New Jersey as it interacts with the original clipper low.  

As of right now, snowfall amounts have been upped since this morning.  3 to 6 inches is now forecast north of the Interstate 78 corridor, from northern Berks County then the Lehigh Valley on north through the Poconos and northwest New Jersey.  1 to 3 inches of snow is expected south of there to around the Delaware Valley and along and just northwest of the I-95 corridor.  South annd east of there, the lightest amounts are expected with only an inch or less of snow currently forecast. 

The two-week deep freeze and then the recent thaw has created an ice jam on the Delaware River near Trenton, and flood warnings have been posted for both sides of this portion of the Delaware River in Bucks and Mercer counties.  Expect some flooding and road closures along the river until the ice jam dislodges.  Flood warnings continue this evening and could be extended if the jam and resulting flooding persists.  

As the clipper and any coastal low depart on Wednesday, northwest breezes will kick up just a bit and keep the seasonably cold air locked in through Thursday, with afternoon highs in the low to mid 30s, and overnight lows within a few degrees either side of 20.  A large area of high pressure will build to our southwest, allowing the sunshine to return for the second half of the week and eventually allowing winds to shift from the west and then the southwest.  That will be the impetus for our next thaw to begin, as the cold will ease and warmer air will ride those winds towards the East Coast.  Friday should be the first day of that transition as highs will near 40 degrees, and then climb through the 40s to perhaps near or above 50 later in the weekend into early next week. 

While another bout of 60-something-degree weather does not look likely, we do have another warming trend to look forward to after we persevere a week’s worth of modest cold.  Thankfully, this current cold shot will not be as intense or long lasting as its predecessor and should therefore be easier to stomach.   While the weekend looks to remain dry while we warm, some rain showers may accompany the warmth by Monday as a cold front approaches.


Interactive Radars

STORMCENTER UPDATE

Hurricane Info

Tropical Cyclone Berguitta

  • -18.1N, 297.4E
  • 100KT
  • 4KT
  • MB
More Info

Reading, PA 19605

26°F

Overcast Feels like 26°
  • 0 mph
  • 66%
  • 16°
  • 30.5 in
  • 7:24 AM
  • 5:02 PM

TONIGHT

23°F
Mst Cloudy; Late Snow/Flurries

  • 4 mph ESE
  • 20%
  • 5:02 PM
  • Monday

    29° / 23°
  • Tuesday

    36° / 28°
  • Wednesday

    35° / 17°
  • Thursday

    35° / 19°
  • Friday

    40° / 26°
  • Saturday

    48° / 33°

This Week's Circulars

Regional Radar Image

Historical Averages

High Low
Current 28°F 22°F
Average 35°F 19°F
Record 68°F January 15, 1995 -6°F January 15, 1948

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