Storm Station
Mont Alto, Pennsylvania
61° 62°/58°
Overcast· Feels like 61°·Gentle breeze 9 mph N
A slight chance of rain after 5am. Cloudy, with a low around 55. North wind around 13 mph. Chance of precipitation is 20%.
0UV Low
32Air quality
65%Humidity
100%Cloud
Now
3:15 AM
61feels61
now, overcast
Today
Sep 27
6258
35%
19mph
drizzle light
Mon
Sep 28
6757
10%
drizzle
Tue
Sep 29
7159
drizzle light
Wed
Sep 30
7856
overcast
Thu
Oct 1
8458
overcast
Fri
Oct 2
7754
15%
drizzle
Sat
Oct 3
6146
25%
overcast
61°
62°58°
67°57°
71°59°
78°56°
84°58°
77°54°
61°46°

As of 3:15 AM in Mont Alto, Pennsylvania.

What is measuring near here

The 5 instruments nearest Mont Alto, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 6.9 miles away.

measured now3 instruments

I-81 Franklin MM11 NBPA078

Beside a road/6.9 mi away/656 ft/217 ft below here

temp, pavement temp, wind, visibility, precip

Rank476of 543

Liberty - Raven RockXIF

At an airfield/10.2 mi away/1,141 ft/268 ft above here

temp, wind, gust, visibility, precip, pressure

Rank19of 543

Carlisle Water PlantCSLP1

At a river or reservoir gauge/32.9 mi away/436 ft/437 ft below here

temp, wind, gust, humidity, pressure

Rank-

measured daily2 instruments

Chambersburg 1 ESECHMP1

At a cooperative observer's station/7.9 mi away/643 ft/230 ft below here

snowfall, snow depth, precip, high, low

Rank-

Chambersburg 0.2 NNWPA-FN-4

In a volunteer observer's own ground/8.4 mi away/633 ft/240 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Liberty - Raven Rock, drawn

The nearest airport reporting now, 10.2 mi from Mont Alto. From its report of Sep 27, 2026, 2:55 AM local time: 3 of its 6 sheets.

The sky

Overcast at 4,200 ft; the ceiling is 4,200 ft; visibility 10 mi or more.

Section of the sky over Liberty - Raven Rock, height above the station to scale: overcast cloud with its base at 4,200 feet, the ceiling at 4,200 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT XIFFIG. A THE SKY OVER LIBERTY - RAVEN ROCKSECTION, HEIGHT ABOVE THE STATION TO SCALE, EACH LAYER AT THE HEIGHT OF ITS BASE AS REPORTED; COVER IN EIGHTHS OF THE SKY; TOPS NOT MEASUREDFT ABOVE THE STATION01,0002,0003,0004,0005,0006,0007,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 4,200 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 4,200 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLELiberty - Raven Rock, the skySTATION REPORT · ASOS XIFTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-XIF-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

61.5 F with a dew point of 49.3 F, 64 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,800 ft up; the lowest cloud reported is at 4,200 ft.

Chart of the air at Liberty - Raven Rock: temperature 61.5 degrees Fahrenheit and dew point 49.3, 64 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,800 feet above the station, against the lowest cloud reported at 4,200 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT XIFFIG. B THE AIR AT LIBERTY - RAVEN ROCKTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00040 F50 F60 F70 FSATURATES 2,800 FT ABOVE THE STATION, AT 46.5 FLOWEST CLOUD REPORTED, OVC 4,200 FTTEMPERATURE 61.5 FDEW POINT 49.3 FSPREAD 12.2 FRELATIVE HUMIDITY 64 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLELiberty - Raven Rock, the airSTATION REPORT · ASOS XIFTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-XIF-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (340 degrees) at 5 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Liberty - Raven Rock, north up: blowing from 340 degrees, the north northwest, at 5 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT XIFFIG. C THE WIND AT LIBERTY - RAVEN ROCKPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 340°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLELiberty - Raven Rock, the windSTATION REPORT · ASOS XIFTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-XIF-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Liberty - Raven Rock, in 6 sheets, each beside the Field Book plates that explain it

-in

Snow on the ground

Elsewhere in Pennsylvania

24 places, each with its own forecast and its own instruments.

Near Mont Alto

The nearest places, each with its own forecast and the instruments nearest it.