Happy first day of fall! We're in for a spectacular seasonal week of weather!
High pressure will provide us with a nice start to the work and school week.
Afternoon high temperatures will top out in the middle 60s along with a cool, gusty breeze.
Winds will average 10-20 mph with a few higher gusts.
Overnight lows will drop into the middle and upper 30s with patchy frost developing in the normally colder spots.
There can also be patchy fog late in the river valleys.
Tuesday will be another nice day with sunshine and high temperatures near 70 degrees with high pressure remaining in place.
Today: Mostly sunny with a cool breeze. High: 66
Tonight: Clear and chilly; patchy frost and fog late. Low: 39
Tuesday: AM patchy frost and fog; sunny and pleasant. High: 70 Low: 43
Allentown, PA 18102