Accuweather Channel Forecast

10 Day Forecast

  • Friday

    87° / 60°
    Sunny to Partly Cloudy 0%
  • Saturday

    78° / 63°
    Occasional Rain; Heavy Late 90%
  • Sunday

    85° / 70°
    Humid; Shower/T-Storm, esp. PM 60%
  • Monday

    83° / 73°
    Humid; Showers and a T-Storm 60%
  • Tuesday

    84° / 72°
    Humid; Showers and a T-Storm 40%
  • Wednesday

    83° / 71°
    Humid; Showers and a T-Storm 40%
  • Thursday

    85° / 67°
    Humid with a Shower or T-Storm 40%
  • Friday

    85° / 66°
    Clouds and Sun; Shower/T-Storm 30%
  • Saturday

    85° / 62°
    Shower or T-Storm Possible 30%
  • Sunday

    85° / 63°
    Humid with a T-Storm Possible 30%
Weather Forecast Discussion

Rain develops from north to south on Saturday; becomes heavy late and at night

Humid and unsettled pattern sticks around a while

TONIGHT: Clear to partly cloudy. Low: 60

SATURDAY: Increasing clouds followed by occasional rain with some heavy rain late. High: 78 

SATURDAY NIGHT: Rain, heavy at times, including a rumble of thunder; flooding in poor drainage areas. Low: 63


***FLASH FLOOD WATCH IN EFFECT FOR NEW CASTLE, BURLINGTON, CAMDEN, GLOUCESTER, MERCER, SALEM, BERKS, BUCKS, DELAWARE, CHESTER, MONTGOMERY AND PHILADELPHIA COUNTIES FROM SATURDAY AFTERNOON THROUGH LATE SATURDAY NIGHT***


Hopefully you enjoyed the last three days of seasonably warm temperatures and plentiful sunshine with comfortable humidity levels. That’s because there isn’t a guaranteed entirely dry day in the forecast for the foreseeable future, which means through all of next week. While that doesn’t mean washouts, it means there’s a chance of rain in the forecast every day for the next seven days. Later Saturday into Saturday night it will be in the form of a steadier rain, and thereafter it will take the form of scattered showers and thunderstorms each and every day. Hang in for an extended stretch of unsettled weather. 

We ended the work week on a high note, literally, as high pressure brought sunny to partly cloudy skies to the region. That sunshine was accompanied by relatively low humidity levels, as dew points stayed near or below 60 degrees, and seasonable high temperatures, which topped out in the low and mid 80s. 

As the aforementioned high pressure system slides off the East Coast tonight, the clouds will begin to increase a bit, especially late. Temperatures overnight will still be comfortable, but not as comfortable as the previous two nights, with lows falling into the low 60s while dew points hang near 60 degrees.

The weekend will start out dry, but it won't stay that way for long. Not long after the sun rises on Saturday we'll start seeing some rain pushing into southern Pennsylvania and South Jersey as a rare July coastal low works its way north. By midday, that rain will be pushing into the Lehigh Valley and Berks as it continues to overspread the area from south to north. One thing that does appear to be fairly certain at this point is mid-afternoon Saturday through the wee hours of Sunday morning appear to be the wettest time period of the weekend with heavy downpours that could lead to flash flooding. 

As this coastal low continues north, the area will see the rain subside by sunrise on Sunday and continue to be relatively quiet for the remainder of the day. What this means is that most of the day will be dry, but not all of it as scattered showers and thunderstorms will still be passing through the region, especially later on in the day and at night. However, by Sunday the die is cast as a low pressure system stalled out over the Great Lakes decides to track south into the Tennessee Valley taking the jet stream along with it. This will create a trough over the eastern half of the United States that won't budge for the foreseeable future. Otherwise, high temperatures this weekend will be in the upper 70s on Saturday and then reach the mid 80s on Sunday, but it won't be as comfortable what we experienced to end the work week as the dew points will be climbing up through the 60s on Saturday and reach the oppressive low 70s Sunday afternoon.

Again, once the pattern of humid and unsettled weather develops over the weekend, it doesn't show signs of going anywhere through the end of July. There are days that look wetter than others for the entire viewing area, but with that said any single storm on any day could produce rainfall amounts of 1" to 3". This means that while a particular day over this stretch may end up being quieter for the area, it could locally end up being very wet where scattered storms tend to persist. With the recent outbreaks of flash flooding in our area, that is a large concern over this stretch, so please be on the lookout for potentially dangerous flooding situations as they unfold. Otherwise, this stretch will be limited on sunshine, but temperatures will remain rather seasonable as the stay in the low 80s.

Have a great weekend, despite the rain!
 


Interactive Radars

Allentown, PA 18102

77°F

Clear Feels like 79°
  • 12 mph SE
  • 50%
  • 57°
  • 30.08 in
  • 5:48 AM
  • 8:27 PM

TONIGHT

60°F
Clear to Partly Cloudy

  • 4 mph ESE
  • 0%
  • 8:27 PM
  • Friday

    87° / 60°
  • Saturday

    78° / 63°
  • Sunday

    85° / 70°
  • Monday

    83° / 73°
  • Tuesday

    84° / 72°
  • Wednesday

    83° / 71°

Reading, PA 19605

75°F

Few Clouds Feels like 75°
  • 8 mph SSE
  • 62%
  • 61°
  • 30.06 in
  • 5:50 AM
  • 8:29 PM

TONIGHT

61°F
Clear to Partly Cloudy

  • 6 mph SE
  • 0%
  • 8:29 PM
  • Friday

    86° / 61°
  • Saturday

    77° / 64°
  • Sunday

    85° / 71°
  • Monday

    83° / 74°
  • Tuesday

    84° / 73°
  • Wednesday

    84° / 72°

This Week's Circulars

Regional Radar Image

Historical Averages

High Low
Current 87°F 60°F
Average 84°F 63°F
Record 101°F July 20, 1980 38°F July 20, 1938

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