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Shaded-relief atlas plate of Letterkenny, Pennsylvania: rivers, roads, the city limits and where the water drains.
PENNSYLVANIA · FRANKLIN COUNTY

Letterkenny

2,528 people, 810 ft above sea level in Franklin County.

810 ftElevation, city center
2,528People, 2024 estimate
70 sq miLand area
Sunny 69°
Sunny now Dew point 57° · W 3 mph · high 69°
City of Letterkenny River Interstate 2 miles
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The Letterkenny plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.

MILE1
TODAY

Today in Letterkenny

NWS forecast and National Blend of Models · updated 4:00 PM EDT
RIGHT NOW Altoona - Blair County Airport (KAOO) · 3:53 PM
Sunny
69° Sunny Feels like 69° · high of 69° near 4 PM
WindW 3 mphno gusts
Humidity65%rising to 100% by morning
Pressure30.06 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 57° · Comfortableabout the same for three days
DryComfortableStickyMuggyOppressive
NEXT RAIN
Mostly cloudy
Friday, about 3 PMin about 70 hours · 48% chance · rain
LIKELY AMOUNT0–0.1 inmost likely 0; 1 in 10 over 0.5
LAST RAINSept. 270.11 in · 2 dry days
ALERTS & OUTLOOKS
No watches or warnings for Franklin County
NWS State College and the Storm Prediction Center · checked 4:55 PM
SUN & MOON
↑ 7:05 AM6:57 PM ↓
11 h 52 m of daylight, 3 minutes less than yesterday
Waning gibbous, 88% lit. The Harvest Moon was full Saturday.
AIR & POLLEN
25
GOODAir quality index · ozone
Tomorrow: 50, good. No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
TUESDAY, SEPT. 29
WEDNESDAY, SEPT. 30
THURSDAY, OCT. 1
FRIDAY, OCT. 2
4p
7p
10p
1a
4a
7a
10a
1p
4p
7p
10p
1a
4a
7a
10a
1p
4p
7p
10p
1a
4a
7a
10a
1p
partly cloudy day
partly cloudy night
mostly clear night
mostly clear night
partly cloudy night
partly cloudy day
partly cloudy day
partly cloudy day
partly cloudy day
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
partly cloudy day
partly cloudy day
mostly sunny
partly cloudy day
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy day
partly cloudy day
mostly cloudy day
TEMPERATURE °F
69°
53°
75°
60°
77°
63°
CHANCE OF RAIN
48% · 0.00 in Friday afternoon 50%
WIND, MPH
2
0
0
0
0
0
5
6
3
0
0
0
0
2
3
7
6
6
6
5
6
6
8
12
HOW IT FEELS · DEW POINT
Comfortable: dew points 52 to 63°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 69° / 49°
TUE Sept. 29 Partly cloudy Partly cloudy
69° 52°
0% rain — NNW 1 A
WED Sept. 30 Partly cloudy; warmer Partly cloudy; warmer
77° 58°
10% rain — SSW 3 A
THU Oct. 1 Partly cloudy Partly cloudy
79° 61°
10% rain — WSW 5 B
FRI Oct. 2 Chance of showers Chance of showers
79° 52°
50% rain up to 0.1″ NW 8 C
SAT Oct. 3 Partly cloudy; cooler Partly cloudy; cooler
66° 46°
20% rain — E 1 B
SUN Oct. 4 Chance of showers Chance of showers
65° 45°
40% rain up to 0.4″ SW 3 C
MON Oct. 5 Mostly sunny Mostly sunny
63° 37°
0% rain — NW 7 C
How sure are we? AModels agree: highs within 4° BSome spread: within 8° CWide spread: check back
Range from the National Blend of Models percentiles · graded on Forecast Scores
AIR MAIL

Where today’s air came from

The air arriving over Letterkenny about 5,000 feet above the ground was over the Atlantic off the Carolinas three days ago, and over the Great Lakes a day ago, about 1,570 miles back along its path. Near the ground the air came from the Atlantic off the Carolinas; at 10,000 feet, from the western Atlantic. Traced back 72 hours through NOAA’s hourly RAP analyses, nine paths at each of three heights.

MILE7
ON THE NETWORK

Around Letterkenny on the Forecast Network

Neighboring plates

Chambersburg PA · 8 MI 8 miles southeast Hagerstown MD · 27 MI 27 miles south Baltimore MD · 78 MI 78 miles southeast Washington DC · 87 MI 87 miles southeast Pittsburgh PA · 122 MI 122 miles west Philadelphia PA · 137 MI 137 miles east
FORECASTCITY
Atlas plate of Letterkenny, Pennsylvania. Explore the plate
PENNSYLVANIA · FRANKLIN

Letterkenny

2,528 people, 810 ft above sea level in Franklin County.

810 ftElevation
2,528People
70 sq miLand
Sunny 69°
SunnyDew point 57°
1

Today in Letterkenny

NEXT 15 HOURS
Now partly cloudy day 69° 0%
7p partly cloudy night 66° 0%
10p mostly clear night 59° 0%
1a partly cloudy night 56° 0%
4a partly cloudy night 54° 0%
7a partly cloudy day 53° 0%
Mostly cloudy
NEXT RAINFriday about 3 PM · 48%
→
Tue0%
Partly cloudy Partly cloudy
52
69
A
Wed10%
Partly cloudy; warmer Partly cloudy; warmer
58
77
A
Thu10%
Partly cloudy Partly cloudy
61
79
B
Fri50%
Chance of showers Chance of showers
52
79
C
Sat20%
Partly cloudy; cooler Partly cloudy; cooler
46
66
B
Sun40%
Chance of showers Chance of showers
45
65
C
Mon0%
Mostly sunny Mostly sunny
37
63
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
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