10 Day Forecast

  • Wednesday

    81° / 64°
    Increasing Clouds; Rain Late 60%
  • Thursday

    86° / 60°
    Clouds, then Sun; Warm 0%
  • Friday

    79° / 62°
    Sun and Clouds; Comfortable 20%
  • Saturday

    79° / 66°
    More Clouds; Shower or T-Storm 70%
  • Sunday

    85° / 63°
    Clouds and Sun; T-Storm Around 30%
  • Monday

    81° / 57°
    Clouds and Sun; Less Humid 30%
  • Tuesday

    84° / 59°
    Plentiful Sunshine 0%
  • Wednesday

    87° / 63°
    Mostly Sunny and Very Warm 0%
  • Thursday

    88° / 68°
    Clouds and Sun with PM T-Storm 30%
  • Friday

    88° / 68°
    Clouds and Sun, Humid 20%
Weather Forecast Discussion

Increasing clouds as day progresses, rain moves in late

Summer starts on a drier, brighter note tomorrow

TODAY: Some sun this morning, then becoming rather cloudy in the afternoon with rain arriving late. High: 81  
TONIGHT: Considerable cloudiness with periods of rain, ending after midnight. Low: 64 
THURSDAY: Some clouds early, then turning mostly sunny and warm, but less humid. High: 86 Low: 60

Two days above 90 degrees doesn’t constitute a heat wave, but the heat and humidity to start the week Monday and Tuesday provided us with an early summer preview, even though summer doesn’t officially begin until tomorrow. Tuesday was still an above average day temperature-wise, but not exactly the record-challenging (and in Allentown's case tying) warmth we had on Monday. After a mild and muggy start, Tuesday developed into a very pleasant day as the cold front pushed to the south and high pressure began to build in from the eastern Great Lakes. That high brought more and more sunshine to the area as the afternoon rolled on and temperatures were peaking in the low and mid 80s all while humidity levels dropped significantly. Last night was a significantly cooler and more comfortable night, due to the clear skies and low humidity levels. Temperatures were able to drop into the low 60s and even upper 50s in spots.

Today will start off with some sunshine, but clouds will build as the day progresses. That front that pushed through yesterday in the form of a cold front has now stalled out to our south and become stationary. A wave of low pressure is riding along the front from the west, and it will eventually bring us some rain late in the day and into the overnight hours. The showers will be light and scattered in nature at first this afternoon but will become more widespread and heavier as we head into the overnight hours. The heaviest of the rain will be in the southern part of the viewing region, closer to the I-76 corridor. Rainfall amounts will be around or less than half an inch for most of us, but there could be some pockets were heavier downpours lead to an inch or more. The system is fast moving, so the rain will be out of the area by rush hour on tomorrow. Because of the cloudier sky, high temperatures today will be lower than yesterday, topping out in the low 80s for most. 

Summer officially begins at 6:07 AM Thursday and the season will begin with a nice couple of days. Expect comfortably warm conditions with a mixture of sun and clouds Thursday and Friday with low humidity levels. Thursday will be the warmer of the two days with highs in the mid 80s, while Friday will be cooler with highs close to 80. 

Unfortunately, by the end of the day on Friday, our next area of low pressure will be approaching for the west and southwest. As the low's warm front pushes north and east on Friday there may be a shower in spots by day's end, but we're not looking at widespread showers. That is until we get to the weekend, so the dry weather won't carry over. The humidity begins to ramp up, and so does the chances for rain. At this point, it looks like Saturday will be the wetter of the two days, with showers and thunderstorms at times during the day. While a stray shower or storm is still possible on Sunday, it will likely remain dry for most of the day. We will hone in on the details and timing as the weekend gets closer, and of course, keep you updated.

Have a great start to your Wednesday!

 The Accuweather Channel Forecast

Historical Averages

High Low
Current 81°F 64°F
Average 81°F 60°F
Record 100°F June 20, 1923 44°F June 20, 1926

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