Allentown, PA 18102

83°F

Broken Clouds Feels like 86°
  • 8 mph SW
  • 63%
  • 69°
  • 30.18 in
  • 6:18 AM
  • 7:50 PM

TONIGHT

70°F
Scattered Thunderstorms

  • 4 mph SSW
  • 40%
  • 7:50 PM
  • Monday

    87° / 70°
  • Tuesday

    92° / 70°
  • Wednesday

    83° / 58°
  • Thursday

    78° / 56°
  • Friday

    77° / 54°
  • Saturday

    78° / 56°

10 Day Forecast

  • Monday

    87° / 70°
    Sun and Clouds, PM T-Storm 30%
  • Tuesday

    92° / 70°
    Partly Sunny, Night T-Storms 20%
  • Wednesday

    83° / 58°
    Early Shower; Sun and Clouds 20%
  • Thursday

    78° / 56°
    Mostly Sunny 0%
  • Friday

    77° / 54°
    Sunny 0%
  • Saturday

    78° / 56°
    Mostly Sunny 0%
  • Sunday

    79° / 56°
    Partly Sunny 0%
  • Monday

    79° / 58°
    Partly Sunny 0%
  • Tuesday

    78° / 61°
    Showers 0%
  • Wednesday

    79° / 61°
    Partly Cloudy 30%
Weather Forecast Discussion

A mix of clouds and sun as the solar eclipse peaks at 2:43 p.m. today

Hot and humid Tuesday, then comfier late week

TODAY: Intervals of sunshine and clouds, warm and turning more humid; a stray t-storm. High: 87

TONIGHT: An early evening shower or t-storm in spots; otherwise, partly cloudy and muggy; patchy fog late. Low: 70

TUESDAY: Patchy fog early; otherwise, hot and humid with intervals of clouds and sunshine. T-storms overnight.  High: 92  Low: 70

 

Most of us want sunshine on any given summer day, but the entire country is united in hoping that the clouds stay away today, specifically early this afternoon.

It’s true that the main weather talking point today isn’t exactly meteorological, but instead astronomical. The day is finally here, the highly anticipated “Great American Eclipse,” a relatively rare total solar eclipse of the sun which will cross the United States this afternoon. Granted, we won’t see totality here in Pennsylvania and New Jersey, as you have to head well to our south to the Carolinas, Tennessee, and Kentucky to see 100 percent of the sun entirely blocked by the moon for a few minutes Monday afternoon.

However, we’ll still be able to see a partial eclipse, around 75% coverage, and of course we want the weather to cooperate for our viewing pleasure. Ideally, we’d love to have Sunday’s cloudless skies and abundant sunshine, which would have led to perfect conditions for viewing the eclipse. That won’t be the case today, as some cloudier intervals will be passing through and will try to play spoiler for some trying to catch a glimpse of this rare astronomical event. The rule of thumb for this afternoon is that there will be more sun and better viewing weather the farther east you travel, and more clouds and the chance for iffier viewing conditions as you travel west. There may be an isolated thunderstorm or two approaching from the west later in the day, but hopefully not until after the eclipse has ended. Highs will climb well into the 80s with gradually increasing humidity this afternoon.

The eclipse will begin around 1:20 p.m. and end around 4 p.m., with the peak occurring around 2:43 p.m. and lasting just a few minutes. Remember, never look directly at the sun without special glasses as damage to your eyes can result. You can also safely view the eclipse by making a special “pinhole” device to portray the effects on a piece of paper. If you miss this eclipse, the next one doesn’t occur until 2024.

Outside of the chance of a stray early evening thunderstorm, Monday night will turn out partly cloudy with perhaps some patchy fog redeveloping in spots. It will be a sticky summer night with lows only around 70, which means the air conditioner will likely come in handy to keep things comfortable tonight.

Beyond the celestial show, much of the week looks fairly quiet, one of the nicer and drier forecasts we’ve had amidst a very wet summer. After a hot and humid Tuesday with sticky sunshine, a cold front could cause a few thunderstorm to pop Tuesday night. That cold front will promptly sweep any storms along with the higher humidity off the coast and out to sea on Wednesday. If you’re not a fan of the summer muggies, you’ll love the air mass that is going to build in for an extended stay later this week and right through next weekend. Plentiful sunshine and mild temperatures will be the rule each day, followed by clear, cool, and comfy nights that will make for great sleeping weather.

A quick check on the tropics currently shows there are no named storms to track, although one currently deceased storm may come back to life in the coming days. Tropical Storm Harvey fell apart on its trek west across the Caribbean Sea, but could try to redevelop as it crosses into the southwest Gulf of Mexico this week. Interests in Mexico and even far South Texas should monitor the possible rebirth of Harvey over the next few days. Another tropical wave moving through the Bahamas is also being watched for the chance for some slow development, though nothing is imminent. 


Interactive Radars

Reading, PA 19605

82°F

Overcast Feels like 87°
  • 9 mph SSW
  • 71%
  • 72°
  • 30.18 in
  • 6:20 AM
  • 7:52 PM

TONIGHT

71°F
Scattered Thunderstorms

  • 6 mph SSW
  • 40%
  • 7:52 PM
  • Monday

    88° / 71°
  • Tuesday

    93° / 71°
  • Wednesday

    84° / 59°
  • Thursday

    79° / 57°
  • Friday

    78° / 55°
  • Saturday

    79° / 57°

This Week's Circulars

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Historical Averages

High Low
Current 87°F 70°F
Average 81°F 60°F
Record 98°F August 21, 1916 45°F August 21, 2000

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