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Latest PA Weather Summary:

515
AWUS81 KCTP 142219
RWSCTP
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-
049>053-056>059-063>066-151230-

Regional Weather Summary
National Weather Service State College PA
619 PM EDT Sun Sep 14 2025

The ongoing dry spell and 30 to 60 day rainfall deficit will
continue across Pennsylvania into the last week of astronomical
summer. There could be some light rain during the midweek period
focused across the far southeastern part of the Commonwealth. The
northwest half of Pennsylvania is projected to stay dry with no
relief in the abnormally dry to moderate drought conditions into
the weekend.

Lows tonight will drop into the 50s for most, with some 40s in
northwest PA and 60s toward Philadelphia. Patchy dense fog is
expected in the typical river valleys across northern PA. High
temperatures will remain rather warm over the next two days and
above the historical average for mid September in the mid 70s to
mid 80s. Increasing clouds and a wind flow from the east will
result in a modest cooling trend into Wednesday particularly in
the south central and southeastern portions of the Keystone state.


$$

Latest Forecaster's Discussion:

176
FXUS61 KCTP 141844
AFDCTP

Area Forecast Discussion
National Weather Service State College PA
244 PM EDT Sun Sep 14 2025

.SYNOPSIS...
* Clearing skies tonight with valley fog probable for the
morning commute across northern Pennsylvania.
* High confidence in dry weather continuing through Tuesday.
* Light rain possible mid-to-late week, especially across
southern and eastern Pennsylvania.

&&

.NEAR TERM /THROUGH TONIGHT/...
Recent satellite loop outlines scattered cumulus clouds
beginning to fire across the northern half of Pennsylvania and
along the Laurel Highlands. Coverage will continue to gradually
increase over the next 2-3 hours before decreasing near sunset
and allowing for clear skies overnight. Valley fog potential
looks more favorable tonight compared to this morning given the
overall lack of mid-to-high level clouds. Recent HREF
probabilities are pushing closer to 40-50% for valley fog
formation across the northern valleys of Pennsylvania, with a
secondary area of fog formation possible across Lancaster,
Lebanon, and favored areas in Schuylkill County. At this time,
the northern tier looks like the better bet, thus have
highlighted this potential slightly heavier in this forecast
package. Low temperatures overnight based on MAV guidance under
radiational cooling outlines MinTs in the upper 40s across NW PA
to the upper 50s across the southern tier.

&&

.SHORT TERM /MONDAY THROUGH TUESDAY NIGHT/...
All model guidance points to fair weather under high pressure
stationed over Ontario/Quebec and into the northeast CONUS,
allowing for continued dry conditions through Tuesday with high
confidence. Mostly sunny skies are expected on Monday with
scattered cumulus cloud development during the afternoon before
easterly flow on Tuesday pushes more widespread cloud coverage
to the area. Increasing cloud cover with easterly flow will
allow for a slight decrease in temperatures on Tuesday, pushing
closer to seasonal averages with portions of the southeastern
Pennsylvania tipping just below average for mid-September. Under
clear skies, dew points will be the trickiest part of the
forecast on Monday. Some signals for relatively dry air aloft
mixing down are present with the MinRH "floor" reaching down
towards the 20-25% range across portions of west-central
Pennsylvania to 30-35% across the northern tier.

&&

.LONG TERM /WEDNESDAY THROUGH SATURDAY/...
A closed low stationed across the southern Mid- Atlantic will
bring increased chances for precipitation chances on Wednesday
and into the second half of the week. Recent deterministic model
guidance has began to converge towards the low pressure system
setting up along the VA-NC border on Wednesday which will bring
about some chances of precipitation across southern and eastern
Pennsylvania; however, model guidance still shows a fair amount
of spread with respect to track of the low, thus there remains
uncertainty later in the week. Thus, the current forecast
outlines the best chances for showers and (afternoon/evening)
thunderstorms across southern and eastern Pennsylvania on
Wednesday.

A brief spell of dry conditions is once again expected in the
wake of the coastal low, with moderate-to-high confidence in dry
conditions on Friday. Recent model guidance has slightly slowed
down with respect to the low pressure system in the Midwest
with a fair amount of uncertainty between deterministic model
guidance. Given these changes, have decided to roll with NBM
through Sunday, with the best chances of precipitation coming
after sunrise on Sunday.

&&

.AVIATION /18Z SUNDAY THROUGH FRIDAY/...
VFR conds with sct fair weather Cumulus (Cu) clouds and light
winds are expected through sunset, when the Cu will crumble.
High pressure building in from the north will keep skies clear
overnight and into Monday morning. There is a fairly strong
signal in most of the guidance for valley fog formation, but
confidence on impacts at TAF sites is low. Model RH profiles
would suggest that BFD and IPT will have the best chance of
seeing IFR visibilities and the 00Z HREF has a 40-60% chance of
visibility dropping below 1/2SM at BFD.

Outlook...

Mon-Tue...VFR with AM valley fog.

Wed-Thu...Generally VFR, some SHRA possible (20-40%) SE PA.

Fri...VFR with AM valley fog.

&&

.CLIMATE...
Astronomical fall officially begins with the autumnal equinox
on Monday, September 22, 2025 @ 2:19 p.m. EDT. The Autumn 2025
season will last 89 days, 20 hours, and 43 minutes. Daylight
saving time will end just after Halloween with clocks falling
back at 2 a.m. Sunday, November 2, 2025.

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

SYNOPSIS...NPB
NEAR TERM...NPB
SHORT TERM...NPB
LONG TERM...NPB
AVIATION...Gartner/Bauco
CLIMATE...Steinbugl

Latest Public Information Statement:

301
NOUS41 KCTP 081505
PNSCTP
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053-056>059-
063>066-090305-

Public Information Statement
National Weather Service State College PA
1105 AM EDT Mon Sep 8 2025

...LOW TEMPERATURE REPORTS...

Location Temp Time/Date Provider

...Pennsylvania...

...Bedford County...
Claysburg 35 F 0726 AM 09/08 CWOP
Bedford Airport 36 F 0655 AM 09/08 AWOS
Clearville 36 F 0725 AM 09/08 DAVIS
Saxton 37 F 0715 AM 09/08 CWOP

...Blair County...
Altoona-Blair County Airport 35 F 0753 AM 09/08 AWOS
WILLIAMSBURG 36 F 0707 AM 09/08 CWOP
Duncansville 38 F 0655 AM 09/08 DAVIS
Altoona 38 F 0745 AM 09/08 CWOP
4 NNE Williamsburg 38 F 0745 AM 09/08 AWS
Williamsburg 39 F 0645 AM 09/08 HADS
Penn State Altoona 39 F 0712 AM 09/08 MESOWEST
Blair Helibase 39 F 0716 AM 09/08 RAWS
2 NNW Altoona 39 F 0720 AM 09/08 AWS
Altoona 39 F 0800 AM 09/08 CWOP
Hollidaysburg 40 F 0705 AM 09/08 DAVIS
Williamsburg 40 F 0715 AM 09/08 DAVIS
ALTOONA 40 F 0726 AM 09/08 CWOP
1 E Bellwood 40 F 0805 AM 09/08 PADOT

...Cambria County...
MINERAL POINT 35 F 0539 AM 09/08 CWOP
Ebensburg 39 F 0731 AM 09/08 CWOP

...Cameron County...
Doll Hill 38 F 0650 AM 09/08 RAWS
Emporium 39 F 0755 AM 09/08 DAVIS

...Centre County...
South Philipsburg 32 F 0722 AM 09/08 CWOP
PORT MATILDA 32 F 0725 AM 09/08 CWOP
Spring Mills 33 F 0624 AM 09/08 CWOP
Bellefonte 35 F 0630 AM 09/08 CWOP
Rock Springs 35 F 0707 AM 09/08 MESOWEST
Centre Hall 35 F 0725 AM 09/08 DAVIS
Zion 36 F 0638 AM 09/08 CWOP
Pennsylvania Furnace 36 F 0643 AM 09/08 CWOP
2 SW State College 36 F 0645 AM 09/08 CWOP
PSU UPark PEMN 36 F 0652 AM 09/08 MESOWEST
Stormstown 36 F 0700 AM 09/08 CWOP
Snow Shoe 36 F 0710 AM 09/08 PADOT
State College 38 F 0705 AM 09/08 CWOP
State College 38 F 0715 AM 09/08 DAVIS
1 NE Port Matilda 38 F 0725 AM 09/08 PADOT
State College 39 F 0718 AM 09/08 CWOP
Bald Eagle State Park 40 F 0322 AM 09/08 MESOWEST
3 NNW Milesburg 40 F 0640 AM 09/08 PADOT

...Clearfield County...
Clearfield Airport 34 F 0754 AM 09/08 ASOS
2 ENE Clearfield 36 F 0555 AM 09/08 PADOT
Grampian 36 F 0600 AM 09/08 COOP
Dubois 36 F 0645 AM 09/08 CWOP
Psu Dubois 36 F 0722 AM 09/08 MESOWEST
6 NNE Philipsburg 37 F 0650 AM 09/08 PADOT
Clearfield 39 F 0815 AM 09/08 DAVIS
Kennedy Preserve 40 F 0108 AM 09/08 RAWS
1 SSE S.b. Elliot State Park 40 F 0725 AM 09/08 PADOT

...Clinton County...
Carroll 37 F 0725 AM 09/08 PADOT
Lock Haven 40 F 0655 AM 09/08 DAVIS

...Dauphin County...
Halifax 40 F 0725 AM 09/08 CWOP

...Elk County...
Kersey 31 F 0720 AM 09/08 CWOP
Saint Marys 33 F 0645 AM 09/08 CWOP
Ridgway 34 F 0740 AM 09/08 AWS
Ridgway 36 F 0700 AM 09/08 COOP
St Marys 37 F 0715 AM 09/08 AWOS
Saint Marys 39 F 0715 AM 09/08 CWOP

...Franklin County...
Waynesboro 39 F 0630 AM 09/08 CWOP
Willow Hill 39 F 0714 AM 09/08 AWS
Greencastle 39 F 0715 AM 09/08 CWOP
Chambersburg 40 F 0715 AM 09/08 DAVIS

...Fulton County...
Forney Trail 34 F 0649 AM 09/08 RAWS
1 NNW Hancock 40 F 0709 AM 09/08 PADOT

...Huntingdon County...
Petersburg 36 F 0725 AM 09/08 DAVIS
Huntingdon 38 F 0702 AM 09/08 MESOWEST
Mapleton 39 F 0607 AM 09/08 CWOP
Shavers Creek WxSTEM 39 F 0750 AM 09/08 MESOWEST

...Juniata County...
Lemont 38 F 0735 AM 09/08 DAVIS

...Lycoming County...
Jersey Shore 38 F 0700 AM 09/08 CWOP

...McKean County...
Smethport 32 F 0800 AM 09/08 CWOP
Kinzua Bridge State Park 34 F 0652 AM 09/08 MESOWEST
Bradford Airport 34 F 0753 AM 09/08 ASOS
Smethport 34 F 0800 AM 09/08 CWOP
Port Allegany 36 F 0800 AM 09/08 COOP
2 WSW Mount Jewett 38 F 0710 AM 09/08 PADOT
Bradford 5SW 39 F 0800 AM 09/08 COOP

...Mifflin County...
2 SSW Alfarata 39 F 0705 AM 09/08 AWS
Mifflin County Airport-RVL 39 F 0715 AM 09/08 AWOS
Chestnut Springs 40 F 0651 AM 09/08 RAWS
LEWISTOWN 40 F 0656 AM 09/08 CWOP

...Northumberland County...
2.6 N Mount Carmel 40 F 0649 AM 09/08 HADS
Knoebels Grove 40 F 0735 AM 09/08 AWS

...Perry County...
1 SW Loysville 37 F 0637 AM 09/08 AWS
Big Knob 40 F 0708 AM 09/08 RAWS
Elliottsburg 40 F 0715 AM 09/08 DAVIS

...Potter County...
Ulysses 36 F 0725 AM 09/08 DAVIS
3 W Denton Hill State Park 38 F 0305 AM 09/08 PADOT
Cherry Springs State Park 39 F 0632 AM 09/08 MESOWEST

...Schuylkill County...
Valley View 38 F 0657 AM 09/08 CWOP
Nuremberg 38 F 0715 AM 09/08 DAVIS
Frackville 40 F 0648 AM 09/08 CWOP
POTTSVILLE 40 F 0700 AM 09/08 CWOP

...Snyder County...
Selinsgrove 40 F 0753 AM 09/08 ASOS

...Somerset County...
CENTRAL CITY 32 F 0730 AM 09/08 CWOP
ROCKWOOD 33 F 0703 AM 09/08 CWOP
HOLLSOPPLE 35 F 0234 AM 09/08 CWOP
Ogletown 35 F 0725 AM 09/08 PADOT
Somerset Airport 36 F 0650 AM 09/08 AWOS
SOMERSET 36 F 0724 AM 09/08 CWOP
Somerset 36 F 0735 AM 09/08 CWOP
2 NNE Garrett 37 F 0705 AM 09/08 PADOT
Meyersdale 37 F 0750 AM 09/08 PADOT
HOLLSOPLE 38 F 0305 AM 09/08 CWOP
Jerome 38 F 0635 AM 09/08 DAVIS
Addison Township 38 F 0722 AM 09/08 MESOWEST
2 NW Indian Lake 39 F 0705 AM 09/08 AWS
Flight 93 Memorial Site 40 F 0512 AM 09/08 MESOWEST
Somerset 40 F 0800 AM 09/08 COOP

...Sullivan County...
LOPEZ 32 F 0710 AM 09/08 CWOP
3 NE Laporte 36 F 0740 AM 09/08 PADOT
DUSHORE 38 F 0643 AM 09/08 CWOP
Dushore 38 F 0643 AM 09/08 CWOP
Hillsgrove 38 F 0645 AM 09/08 DAVIS
3.4 E Muncy Valley 40 F 0730 AM 09/08 HADS

...Tioga County...
Wellsboro 35 F 0735 AM 09/08 CWOP
Old Mountain 36 F 0616 AM 09/08 RAWS
Tioga 2 36 F 0712 AM 09/08 MESOWEST
Westfield 38 F 0645 AM 09/08 CWOP
1.3 NE Leonard Harrison SP 38 F 0700 AM 09/08 COOP
Wellsboro 38 F 0730 AM 09/08 CWOP
Tioga 39 F 0422 AM 09/08 MESOWEST
0.8 W Tioga 40 F 0800 AM 09/08 HADS

...Union County...
LEWISBURG 39 F 0702 AM 09/08 CWOP
Lewisburg 40 F 0715 AM 09/08 DAVIS

...Warren County...
Grand Valley 35 F 0530 AM 09/08 CWOP
Kinzua 38 F 0622 AM 09/08 RAWS
Warren 39 F 0642 AM 09/08 MESOWEST
Tidioute 40 F 0140 AM 09/08 AWS
&&

Observations are collected from a variety of sources with varying
equipment and exposures. We thank all volunteer weather observers
for their dedication. Not all data listed are considered official.

$$