Pennville Pennsylvania Weather Forecast Discussion

887
FXUS61 KCTP 081927
AFDCTP
Area Forecast Discussion
National Weather Service State College PA
327 PM EDT Wed Oct 8 2025
.SYNOPSIS...
* Crisp and seasonable Fall conditions through late week
* Frost/freeze conditions tonight and Thursday night could end
  the growing season in some parts of central PA
* Increasing odds for cloudy/wet/windy weather Sunday into
  Monday particularly across the eastern part of the forecast
  area
&&
.NEAR TERM /THROUGH TONIGHT/...
Instability cu should crumble with the loss of daytime heating
through the evening, giving way to clear skies overnight. A
seasonably strong +2SD 1030mb high pressure dome will migrate
over the eastern Great Lakes and continue to direct crisp and
chilly Fall air into CPA. Frost/freeze headlines remain
unchanged over the northern and western Alleghenies. Some
consideration was given toward adding counties along I-99 where
the usually colder valleys could wake up to areas of frost early
Thursday morning. Min temps in 30-45F range anywhere from 1-2 to
5-8 degrees below climo; however the 24hr change is a bit more
impressive at 15 to 25 degrees lower (colder) vs. last night.
&&
.SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/...
Chilly start followed by abundant sunshine, lighter winds, and
the first cooler-than-average day in some time. Max temps will
be 5-10 degrees below the historical average for early October
making for a crisp, cool Autumn feel with low humidity.
1030+mb high pressure dome with PW 

NWS CTP Office Area Forecast Discussion