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Allentown, PA 18102

39°F

Clear Feels like 36°
  • 5 mph NW
  • 73%
  • 31°
  • 30.33 in
  • 7:15 AM
  • 6:18 PM

TONIGHT

38°F
Clear

  • 3 mph SW
  • 0%
  • 6:18 PM
  • Tuesday

    61° / 38°
  • Wednesday

    70° / 43°
  • Thursday

    72° / 47°
  • Friday

    73° / 44°
  • Saturday

    73° / 48°
  • Sunday

    76° / 52°

10 Day Forecast

  • Tuesday

    61° / 38°
    Sunny; Seasonably Cool 0%
  • Wednesday

    70° / 43°
    Plenty of Sunshine; Nice 0%
  • Thursday

    72° / 47°
    Sunny and Warmer 0%
  • Friday

    73° / 44°
    Mostly Sunny and Warm 0%
  • Saturday

    73° / 48°
    Mostly Sunny and Warm 0%
  • Sunday

    76° / 52°
    Partly Sunny and Warm 0%
  • Monday

    76° / 56°
    Increasing Clouds; Warm 20%
  • Tuesday

    69° / 52°
    Mainly Cloudy; Showers 30%
  • Wednesday

    66° / 42°
    Clouds, Some Sun; a Shower 30%
  • Thursday

    59° / 42°
    Mostly Cloudy, a Shower 30%
Weather Forecast Discussion

Tons of seasonably cool sun on Tuesday after some early morning frost

Warmer air returns later this week

TODAY:  Seasonably cool with plenty of sunshine.  High: 61

TONIGHT: A star-studded sky and seasonably cold.  Low: 38

WEDNESDAY:  Nice with plenty of sunshine.  High: 70  Low: 43

 

For the first time since last Tuesday, you’re waking up to entirely clear skies across Pennsylvania and New Jersey. And for one of the first times this fall, you may also be waking up to some frost. We have finally scoured out those stubborn clouds that took up residence in our skies over the past week, so we won’t have to wait any longer for the sunshine to return. Sunny skies will be ours to keep from start to finish today, and abundant sunshine will be the rule for the rest of the week and likely through the upcoming weekend as well. While it finally feels like fall with seasonably cool temperatures settling in, that fallish feel won’t last long as another warming trend develops later this week.

It’s one of the coldest mornings so far of our not-so-cold fall, with widespread 30s and likely areas of frost for some to scrape off their windshields before heading out this morning. After our “3-C” morning, clear skies, calm winds, and crisp temperatures, tons of sun should allow for a nice temperature recovery this afternoon with seasonably cool highs in the low 60s. Overall, today should be that picture postcard perfect fall day, with the cool and frosty start followed by brilliantly blue skies and a crisp and comfortable afternoon, not to mention less wind than Monday. For those that love seasonable fall days like this, they have unfortunately been rare so far this season.

Another clear and chilly night is on the way tonight, with some patchy frost again possible in the normally colder areas. It’s probably our last opportunity for frost for a while, as another warming trend develops later this week. Expect seasonably cold lows in the upper 30s with a light west to southwest breeze overnight.

That shift in the wind from the west and southwest will be the sign that our next warm up is underway. A large area of high pressure will become anchored along the East Coast through the weekend, and the clockwise flow of air around that high should keep our winds from the southwest through Sunday. Southwest winds will deliver the warmer temperatures, while our high pressure ensures that skies stay sunny indefinitely, well at least through the weekend. We’ll likely tack on a few degrees to our high temperatures each day, as we’ll near 70 on Wednesday, and inch up higher into the 70s through the rest of the week. The weekend should feature partly to mostly sunny skies, with unseasonably warm highs in the mid 70s. Considering our average high for mid-October is only in the low 60s, you can certainly say that we’ll return to well above temperatures by the weekend.

But can you call it Indian summer? Well, that depends. Officially, Indian summer is defined as a period of unusually warm weather following the first killing frost of the fall. While we are seeing some frost early this morning and may again tomorrow morning, it may not be widespread enough to end the growing season for most of us. So technically, it would not be Indian summer. But no matter what you call it, the weekend looks to be a sunsational one weather-wise.

The next chance of rain is still a week away, likely not arriving until sometime next Monday night or Tuesday. After a six day stretch dominated by cloudy skies, the impending abundant sunshine will no doubt be welcome and enjoyed by many of us.


Interactive Radars

Hurricane Info

Tropical Storm Lan

  • 10.0N, 227.8E
  • 50KT
  • 3KT
  • MB
More Info

Reading, PA 19605

37°F

Feels like 37°
  • 0 mph
  • 100%
  • 37°
  • 30.32 in
  • 7:17 AM
  • 6:20 PM

TONIGHT

41°F

  • 3 mph SW
  • 0%
  • 6:20 PM
  • Tuesday

    62° / 41°
  • Wednesday

    71° / 44°
  • Thursday

    73° / 48°
  • Friday

    74° / 45°
  • Saturday

    74° / 49°
  • Sunday

    77° / 53°

This Week's Circulars

Regional Radar Image

Historical Averages

High Low
Current 61°F 38°F
Average 63°F 40°F
Record 88°F October 17, 1938 25°F October 17, 1937

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