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5 Day Forecast

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5 Day Forecast

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5 Day Forecast

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Weather Forecast Discussion

A cool and crisp start to Friday but a nice warming trend will follow

Last weekend of summer looking quite summery

TONIGHT: Mostly clear and quite cool. Low: 45
 
FRIDAY: Mostly sunny with a warmer afternoon. High: 80
 
FRIDAY NIGHT: Mainly clear and not as chilly. Low: 54
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It certainly felt like fall early Thursday morning, as most of us woke up to the first widespread 40s we've seen since late last spring. In the higher elevations of the Poconos and northwestern New Jersey, morning lows actually dipped into the mid 30s and we weren't far away from having some early frost on the pumpkin. Another similarly cool and crisp night is expected tonight with clear skies and light winds as high pressure crests overhead, but tonight and early Friday morning is the only island of cool in an increasing sea of warmth as we sail through a sunny and rather toasty last weekend of summer.

While highs only made it around 70 degrees today, our warming trend begins later Friday as our high pressure slides to our south and winds shift around to the west and eventually southwest later in the weekend. So after a chilly start early Friday morning, abundant sunshine will warm us up nicely and we'll tack on about 10 degrees to Thursday's highs, which brings us up to near 80 degrees after you do the quick math. We'll keep plenty of sunshine going over the weekend with high pressure still firmly in control of our weather, but the warmth will continue to become more established. Highs will climb into the mid 80s on Saturday and even higher into the upper 80s by Sunday. While those temperatures are usually accompanied by higher humidity in July and August, it will be comfortably warm this weekend as humidity levels remain well within the tolerable range. So the last weekend of summer will be quite summery, if you want to soak up one final summer pool weekend if you haven't closed up shop just yet.

Fall begins before sunrise Monday morning with the autumnal equinox, specifically at 3:50am Monday, and it should be a summery start to the new season. An approaching cold front will bring some extra clouds and the chance of a shower or thunderstorm later in the day and overnight, but most of the day may remain dry with at least partly sunny skies and high temperatures again in the mid 80s. The humidity will inch up a bit ahead of that cold front as well, before quickly dropping back into the comfortable range once that front passes later Monday night. That should set up some seasonably mild and mainly dry weather for the middle of next week with high temperatures returning to the mid to upper 70s and a mix of sun and clouds.

The tropics remain active but no immediate threats to the United States from a pair of hurricanes. Humberto is zipping out to sea after offering a glancing blow to Bermuda, while Jerry is out over the open waters of the Atlantic Ocean and should stay north of the Leeward Islands of the Caribbean, and also recurve out to sea well off the East Coast of the United States. The bigger tropical problem has to do with the remnant rains of what was once Tropical Storm Imelda, which is currently producing over 10 to 20 inches of rain and flash flood emergencies across parts of the Texas Gulf Coast.

Have a great night and enjoy the nice weather!

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Historical Averages

High Low
Current 73°F 45°F
Average 73°F 51°F
Record 95°F September 20, 1914 37°F September 20, 1993

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Allentown, PA 18102

47°F

Clear Feels like 47°
  • 0 mph
  • 80%
  • 41°
  • 30.28 in
  • 6:47 AM
  • 7:02 PM

TONIGHT

54°F
Mainly Clear and Not as Chilly

  • 4 mph WSW
  • 0%
  • 7:02 PM
  • Thursday

    73° / 45°
  • Friday

    80° / 54°
  • Saturday

    85° / 59°
  • Sunday

    88° / 64°
  • Monday

    86° / 57°
  • Tuesday

    75° / 52°

Reading, PA 19605

50°F

Feels like 50°
  • 0 mph
  • 100%
  • 50°
  • 30.28 in
  • 6:49 AM
  • 7:04 PM

TONIGHT

55°F

  • 1 mph WSW
  • 0%
  • 7:04 PM
  • Thursday

    74° / 46°
  • Friday

    80° / 55°
  • Saturday

    86° / 60°
  • Sunday

    88° / 64°
  • Monday

    87° / 58°
  • Tuesday

    76° / 53°

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