Allentown, Pennsylvania Weather Conditions

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Current Conditions

  • 82°
  • Clear
  • Wind: SW 8 mph
  • Humidity: 42%
  • Visibility: 10.0 miles
  • Dew Point: 57°
  • Pressure: 29.84 in. -
  • Heat Index: 82

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Next 12 Hours

7  pm
10  pm
1  am
4  am
7  am
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
85°
75°
71°
68°
68°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Clear
  • High: 86 °
  • Low: 61 °
  • Clear
  • Sunday
  • Clear
  • High: 88 °
  • Low: 67 °
  • Clear
  • Monday
  • Clear
  • High: 92 °
  • Low: 65 °
  • Clear
  • Tuesday
  • Clear
  • High: 87 °
  • Low: 63 °
  • Clear
  • Wednesday
  • Chance of a Thunderstorm
  • High: 86 °
  • Low: 61 °
  • Chance of T-Storms

Forecast for Allentown, Pennsylvania

Updated: 6:30 PM EDT on July 31, 2015

  • Tonight

    Mostly clear. Lows in the lower 60s. West winds 5 to 10 mph.

  • Saturday

    Mostly sunny. Highs in the mid 80s. West winds 5 to 10 mph.

  • Saturday Night

    Partly cloudy. Lows in the lower 60s. West winds around 5 mph.

  • Sunday

    Mostly sunny. Highs in the mid 80s. West winds around 5 mph...becoming southwest in the afternoon.

  • Sunday Night

    Partly cloudy. Lows in the mid 60s. Southwest winds around 5 mph.

  • Monday

    Mostly sunny. Highs in the upper 80s.

  • Monday Night

    Partly cloudy. Lows in the upper 60s.

  • Tuesday

    Partly sunny. Highs in the mid 80s.

  • Tuesday Night

    Partly cloudy. Lows in the lower 60s.

  • Wednesday

    Mostly sunny. Highs in the mid 80s.

  • Wednesday Night

    Partly cloudy. Scattered showers. Lows in the lower 60s. Chance of rain 30 percent.

  • Thursday

    Partly sunny with scattered showers and thunderstorms. Highs around 80. Chance of rain 40 percent.

  • Thursday Night

    Partly cloudy. Scattered showers and thunderstorms in the evening. Lows in the lower 60s. Chance of rain 40 percent.

  • Friday

    Partly sunny. Highs around 80.

Severe Weather Alert Descriptions

 Local Storm Report 



07/30/2015 0204 PM

Whitehall TWP, Lehigh County.

Flash flood, reported by trained spotter.


            Car partially submurged at Route 145 and mickley Rd
            intersection




07/30/2015 0204 PM

Whitehall TWP, Lehigh County.

Flash flood, reported by trained spotter.


            Car partially submurged at Route 145 and mickley Rd
            intersection




07/30/2015 0204 PM

Whitehall TWP, Lehigh County.

Flash flood, reported by trained spotter.


            Car partially submurged at Route 145 and mickley Rd
            intersection




07/30/2015 0204 PM

Whitehall TWP, Lehigh County.

Flood, reported by trained spotter.


            Car partially submurged at Route 145 and mickley Rd
            intersection





07/30/2015 0204 PM

Whitehall TWP, Lehigh County.

Flood, reported by trained spotter.


            Car partially submurged at Route 145 and mickley Rd
            intersection





07/30/2015 0204 PM

Whitehall TWP, Lehigh County.

Flood, reported by trained spotter.


            Car partially submurged at Route 145 and mickley Rd
            intersection





07/30/2015 0204 PM

Whitehall TWP, Lehigh County.

Flood, reported by trained spotter.


            Car partially submurged at Route 145 and mickley Rd
            intersection





07/30/2015 0204 PM

Whitehall TWP, Lehigh County.

Flood, reported by trained spotter.


            Car partially submurged at Route 145 and mickley Rd
            intersection





07/30/2015 0204 PM

Whitehall TWP, Lehigh County.

Flood, reported by trained spotter.


            Car partially submurged at Route 145 and mickley Rd
            intersection




Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: West Walnut, Allentown, PA

Updated: 7:21 PM EDT

Temperature: 86.5 °F Dew Point: 61 °F Humidity: 41% Wind: North at - Pressure: 29.65 in Hourly Precipitation: - Heat Index: 86 °F Graphs

Location: South Filmore Street, Allentown, PA

Updated: 7:08 PM EDT

Temperature: 88.9 °F Dew Point: 61 °F Humidity: 40% Wind: NNE at 6.3 mph Pressure: 29.74 in Hourly Precipitation: - Heat Index: 89 °F Graphs

Location: Sherwood Road, Allentown, PA

Updated: 7:21 PM EDT

Temperature: 82.8 °F Dew Point: 59 °F Humidity: 44% Wind: North at - Pressure: 29.75 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: West Allen Street, Allentown, PA

Updated: 7:21 PM EDT

Temperature: 85.5 °F Dew Point: 65 °F Humidity: 49% Wind: North at - Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: Whitehall, Whitehall, PA

Updated: 7:20 PM EDT

Temperature: 83.6 °F Dew Point: 63 °F Humidity: 50% Wind: WNW at 1.0 mph Pressure: 29.40 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: Hokendauqua, Whitehall, PA

Updated: 7:23 PM EDT

Temperature: 83.4 °F Dew Point: 65 °F Humidity: 54% Wind: Calm Pressure: 29.78 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: Fountain Hill - Near ST Lukes hosp., Fountain Hill, PA

Updated: 7:23 PM EDT

Temperature: 83.1 °F Dew Point: 60 °F Humidity: 45% Wind: West at 2.2 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: West Bethlehem, Bethlehem, PA

Updated: 7:23 PM EDT

Temperature: 84.4 °F Dew Point: 62 °F Humidity: 47% Wind: WSW at 3.2 mph Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: South Mountain, Bethlehem, PA

Updated: 7:17 PM EDT

Temperature: 78.6 °F Dew Point: 60 °F Humidity: 53% Wind: SSE at 2.2 mph Pressure: 29.69 in Hourly Precipitation: - Heat Index: 80 °F Graphs

Location: Woodfield Drive, Bethlehem, PA

Updated: 7:21 PM EDT

Temperature: 84.4 °F Dew Point: 70 °F Humidity: 62% Wind: North at - Pressure: 29.88 in Hourly Precipitation: - Heat Index: 89 °F Graphs

Location: Pheasant Hill Estates, Allentown, PA

Updated: 7:22 PM EDT

Temperature: 82.4 °F Dew Point: 64 °F Humidity: 53% Wind: Calm Pressure: 29.29 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: Black River Road, Bethlehem, PA

Updated: 7:21 PM EDT

Temperature: 80.4 °F Dew Point: 67 °F Humidity: 64% Wind: North at - Pressure: 29.89 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: Harvest Fields, East Texas, Allentown, PA

Updated: 7:09 PM EDT

Temperature: 84.7 °F Dew Point: 60 °F Humidity: 43% Wind: ENE at 5.8 mph Pressure: 29.75 in Hourly Precipitation: - Heat Index: 85 °F Graphs

Location: Upper Milford, Emmaus, PA

Updated: 7:23 PM EDT

Temperature: 82.3 °F Dew Point: 61 °F Humidity: 48% Wind: Calm Pressure: 29.12 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Werner Ent. Allentown, Allentown, PA

Updated: 7:23 PM EDT

Temperature: 84.3 °F Dew Point: 61 °F Humidity: 45% Wind: WSW at 5.0 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: Murray Drive, Allentown, PA

Updated: 7:21 PM EDT

Temperature: 85.5 °F Dew Point: 62 °F Humidity: 45% Wind: North at - Pressure: 29.70 in Hourly Precipitation: - Heat Index: 86 °F Graphs

Location: Hilltop, Coopersburg, PA

Updated: 7:22 PM EDT

Temperature: 80.6 °F Dew Point: 69 °F Humidity: 68% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: upper saucon township, Coopersburg, PA

Updated: 7:23 PM EDT

Temperature: 80.9 °F Dew Point: 62 °F Humidity: 53% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Gwenmawr Road, Bethlehem, PA

Updated: 7:21 PM EDT

Temperature: 82.4 °F Dew Point: 62 °F Humidity: 49% Wind: North at - Pressure: 29.90 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: West Allentown, Wescosville, PA

Updated: 7:22 PM EDT

Temperature: 85.0 °F Dew Point: 66 °F Humidity: 54% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: Upper Macungie Twp, Allentown, PA

Updated: 7:11 PM EDT

Temperature: 83.5 °F Dew Point: 64 °F Humidity: 52% Wind: West at 1.1 mph Pressure: 29.70 in Hourly Precipitation: - Heat Index: 85 °F Graphs

Location: Windermerre Park, Allentown, PA

Updated: 7:18 PM EDT

Temperature: 83.0 °F Dew Point: 58 °F Humidity: 42% Wind: Calm Pressure: 29.72 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Macungie Area Weather, Macungie, PA

Updated: 7:23 PM EDT

Temperature: 82.6 °F Dew Point: 62 °F Humidity: 49% Wind: West at 2.0 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Highway 309, Orefield, PA

Updated: 7:22 PM EDT

Temperature: 83.2 °F Dew Point: 61 °F Humidity: 44% Wind: NE at 2.0 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Blue Church Road South, Coopersburg, PA

Updated: 7:21 PM EDT

Temperature: 84.0 °F Dew Point: 64 °F Humidity: 50% Wind: North at - Pressure: 29.91 in Hourly Precipitation: - Heat Index: 85 °F Graphs

Location: Air Products Campus Wx, Allentown, PA

Updated: 7:23 PM EDT

Temperature: 82.4 °F Dew Point: 62 °F Humidity: 51% Wind: SW at 2.3 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Strawberry Acres, Coplay, PA

Updated: 7:20 PM EDT

Temperature: 82.2 °F Dew Point: 63 °F Humidity: 52% Wind: SW at 4.0 mph Pressure: 29.70 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Old Zionsville, Zionsville, PA

Updated: 7:22 PM EDT

Temperature: 81.9 °F Dew Point: 62 °F Humidity: 50% Wind: NW at 1.8 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: whispering hollow south, Northampton, PA

Updated: 7:23 PM EDT

Temperature: 82.0 °F Dew Point: 24 °F Humidity: 12% Wind: WSW at 4.0 mph Pressure: 29.13 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Bethlehem Township, Bethlehem, PA

Updated: 7:22 PM EDT

Temperature: 83.3 °F Dew Point: 60 °F Humidity: 45% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Beechwood Street, Allentown, PA

Updated: 7:21 PM EDT

Temperature: 82.8 °F Dew Point: 66 °F Humidity: 56% Wind: North at - Pressure: 29.88 in Hourly Precipitation: - Heat Index: 85 °F Graphs

Location: Wassergass, Hellertown, PA

Updated: 7:23 PM EDT

Temperature: 82.4 °F Dew Point: 62 °F Humidity: 51% Wind: SSW at 1.2 mph Pressure: 29.78 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Fogelsville, Fogelsville, PA

Updated: 7:22 PM EDT

Temperature: 81.4 °F Dew Point: 64 °F Humidity: 55% Wind: Calm Pressure: 29.58 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Highway 873, Schnecksville, PA

Updated: 7:21 PM EDT

Temperature: 87.1 °F Dew Point: 63 °F Humidity: 44% Wind: North at - Pressure: 29.92 in Hourly Precipitation: - Heat Index: 88 °F Graphs

Location: Wynnewood Terrace, Laurys Station, PA

Updated: 7:23 PM EDT

Temperature: 82.6 °F Dew Point: 62 °F Humidity: 49% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Mount Holly New Jersey 
346 PM EDT Friday Jul 31 2015 


Synopsis... 
high pressure across the Appalachians will give way to a weak 
cold front, which is forecast to cross our area late Saturday 
into Sunday. A stronger cold front is forecasted to cross our 
region late Monday into early Tuesday, then stall offshore on 
Wednesday into Thursday. High pressure may arrive on Friday. 


&& 


Near term /until 6 am Saturday morning/... 
a rather pleasant Summer afternoon is under way with light northwest 
winds, temperatures in the middle/upper 80s but dewpoints in the 50s. Scattered 
diurnal cumulus have formed over most of the area but they will thin out 
and dissipate towards evening. Kdix radar shows a sea breeze along 
parts of the New Jersey shore but it will not be able to move inland much 
against the prevailing northwest flow. 


For tonight...light winds and clear skies will allow temperatures to fall 
into the 60s most areas...except possibly upper 50s in the Poconos 
and low 70s in and near Philadelphia and near the ocean and bays. 


&& 


Short term /6 am Saturday morning through 6 PM Saturday/... 
for Saturday...the flow aloft is broadly cyclonic but without noteworthy 
disturbances and the airmass continues rather dry. Oncly expected 
clouds are some diurnal cumulus similar to today. The surface pressure pattern 
should be similar to today as well so generally westerly wind should develop 
in the morning and continue through afternoon. The 850mb winds are forecast to be 
somewhat stronger so there could be a little more gustiness with afternoon 
mixing. Have included a slight chance for late afternoon T-storms over northern New Jersey 
and adjacent PA with some marginal instability expected. 


&& 


Long term /Saturday night through Friday/... 


Overview... 


Dominant middle-level feature through the long-term period is a closed 
low in vicinity of hudson's Bay along west/ several shortwave disturbances moving 
through it. This feature will be maintained by a developing ridge 
over western noam and high-latitude blocking over Davis Strait. 
Although there is uncertainty in the timing and strength of the 
individual shortwave impulses...and how they affect the amplitude of 
the trough...a developing Omega block over noam should lock in the 
overall pattern through at least d+7. The most apparent model trends 
are to speed the timing of a primary cold front through the area on 
Monday night /as opposed to Tuesday night/ ... the front becoming 
stationary near the New Jersey coast and Delaware-Maryland-Virginia through Thursday. 


The stalled front solution is plausible...given the middle-level 
low over hudson's Bay moving slowly northeast through the period... 
which will lead to a more zonal flow over the area paralleling 
the front by mid-week. This solution is also supported by the 
ecens/gefs means...with overall support from the individual 
members as well. Therefore...relied more heavily on the Euro 
given its recent performance as well as the more stable ecens/ 
gefs means...and discounted the more progressive GFS after 
00z Thursday especially given the more robust noam blocking pattern. 


Overall...the main concerns are the potential for convection 
and localized flash flooding in the Monday through Thursday time frame. 
Temperatures will be at or above normal through at least Wednesday...with above average 
uncertainty going forward...due to the questionable location 
of the front and associated cloudiness. 


Dalies... 


Sunday...shortwave ridging aloft west/ high pressure moving in behind the 
departing cold front. This will promote a mostly sunny and dry 
day. The gradient may relax enough for a sea-breeze to develop 
along portions of the coast. 


Monday...shra/tsra are possible Monday afternoon as shortwave impulse skirts 
to the north and a stronger cold front approaches from the west. 
The approach of the shortwave will lead to steeper lapse rates...but 
moisture is limited...so probability of precipitation were focused to the west of I-95 
where better forcing should reside. The convective potential is 
still in question at this point...and may be more focused just 
to our west. The models appear to be overdoing vertical mixing 
ahead of the front...but there is the potential for 20-25 knot 
wind gusts. 


Monday night and Tuesday...the aforementioned cold front will 
move just offshore Monday night where it is expected to become 
stationary. There is still uncertainty as to the extent of 
rain showers/thunderstorms and rain crossing the County Warning Area Monday night...so low probability of precipitation confined 
north/west of I-95 for now. On Tuesday...the County Warning Area is situated between 
the stalled front offshore and another shortwave disturbance just 
to our north. West/ such a setup...could easily see some precipitation 
in Delaware-Maryland-Virginia and especially over the Poconos and Lehigh Valley. 
Have low probability of precipitation confined north/west of I-95 for now. 


Wednesday through Friday...there remains above average uncertainty during 
this time frame. The synoptic setup favors a stationary front 
in the vicinity and the models also advertise a wave of low- 
pressure traversing this boundary on Thursday. The models are 
also suffering convective feedback issues during this period 
which further adds to the uncertainty. The main concern is the 
potential for some heavy rainfall during this time frame...as 
wpc has their maximum quantitative precipitation forecast axis across the southern half of our County Warning Area. 


&& 


Aviation /20z Friday through Wednesday/... 
the following discussion is for kphl, kpne, kttn, kabe, krdg, kilg, 
kmiv, kacy and surrounding areas. 


Hi confidence for VFR conds to continue through tonight and Saturday 
at all taf sites. Winds will become light/variable tonight as the surface 
layer cools and decouples from winds aloft. Westerly winds will redevelop 
on Saturday morning and may be somewhat gusty 15 to 20 knots at times in 
the afternoon due to slightly stronger winds aloft. 


Outlook... 


Sat night and Sunday...VFR. 


Monday through Wednesday...shra/tsra are possible...especially each 
afternoon. Otherwise VFR. 


&& 


Marine... 
winds and seas will continue rather light over the forecast waters 
tonight and tomorrow morning. Todays northwest flow will turn to the S and 
then SW tonight and Saturday as a surface trough becomes more pronounced 
along the middle-Atlantic Seaboard. Seas of 2 to 3 feet tonight will 
build slightly on Saturday as southwesterly winds increse...gusting to 15 or 
20kt Sat afternoon. 


Outlook... 


Sunday through Wednesday... 


Weak high pressure over the central Appalachians will extend over 
the waters on Sunday into Monday. A stronger cold front will move 
over the waters Monday night and stall in the vicinity through Wednesday. 


There may be a period of wind gusts to about 20 knots associated 
with the passage of a cold front late Monday into early Tuesday. 
This will result in seas increasting...but they are expected to 
remain below 5 feet at this time. 


Otherwise sub-Small Craft Advisory conditions are anticipated through the period. 


&& 


Phi watches/warnings/advisories... 
PA...none. 
New Jersey...none. 
Delaware...none. 
Maryland...none. 
Marine...none. 


&& 


$$ 
Synopsis...franck 
near term...amc 
short term...amc 
long term...franck 
aviation...amc/franck 
marine...amc/franck 



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