Storm Station
Mapleville, Maryland
58° 63°/58°
Mostly clear· Feels like 58°·Light air 4 mph NW
A slight chance of rain showers. Cloudy, with a low around 58. Northwest wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
0UV Low
31Air quality
74%Humidity
25%Cloud
Now
4:15 AM
58feels58
now, mostly clear
Today
Sep 27
6358
40%
16mph
rain light
Mon
Sep 28
6859
overcast
Tue
Sep 29
7560
drizzle light
Wed
Sep 30
8256
overcast
Thu
Oct 1
8958
overcast
Fri
Oct 2
8158
13%
16mph
drizzle light
Sat
Oct 3
6347
32%
overcast
58°
63°58°
68°59°
75°60°
82°56°
89°58°
81°58°
63°47°

As of 4:15 AM in Mapleville, Maryland.

What is measuring near here

The 5 instruments nearest Mapleville, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.7 miles away.

measured now3 instruments

Antietam National BattlefieldANBM2

At a river or reservoir gauge/7.4 mi away/476 ft/170 ft below here

temp, wind, gust, humidity, pressure

Rank70of 402

Camp DavidRSP

At an airfield/11.9 mi away/1,841 ft/1,195 ft above here

temp, wind, gust, visibility, precip, pressure

Rank324of 402

measured daily2 instruments

Boonsboro 0.4 NNEMD-WH-17

In a volunteer observer's own ground/1.7 mi away/556 ft/90 ft below here

precip, snowfall, snow depth

Rank-

Hagerstown 1EHGCM2

At a cooperative observer's station/7.5 mi away/541 ft/105 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Camp David, drawn

The nearest airport reporting now, 11.9 mi from Mapleville. From its report of Sep 27, 2026, 3:54 AM local time: 3 of its 5 sheets.

The sky

Overcast at 3,400 ft; the ceiling is 3,400 ft; visibility 10 mi or more.

Section of the sky over Camp David, height above the station to scale: overcast cloud with its base at 3,400 feet, the ceiling at 3,400 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RSPFIG. A THE SKY OVER CAMP DAVIDSECTION, 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 STATION01,0002,0003,0004,0005,0006,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 3,400 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 3,400 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLECamp David, the skySTATION REPORT · ASOS RSPTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-09-27IDSR-RSP-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

55.0 F with a dew point of 49.0 F, 80 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,400 ft up; the lowest cloud reported is at 3,400 ft.

Chart of the air at Camp David: temperature 55.0 degrees Fahrenheit and dew point 49.0, 80 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,400 feet above the station, against the lowest cloud reported at 3,400 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RSPFIG. B THE AIR AT CAMP DAVIDTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00040 F50 F60 F70 FSATURATES 1,400 FT ABOVE THE STATION, AT 47.6 FLOWEST CLOUD REPORTED, OVC 3,400 FTTEMPERATURE 55.0 FDEW POINT 49.0 FSPREAD 6.0 FRELATIVE HUMIDITY 80 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 POINTTITLECamp David, the airSTATION REPORT · ASOS RSPTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-09-27IDSR-RSP-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The column

At 1,841 ft above sea level, 6 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 27.98 inHg and the temperature at 52.4 F; the station's altimeter setting of 29.79 inHg means its barometer reads 27.86 inHg; it reports 55.0 F, 2.6 F warmer than standard.

Section from sea level of where Camp David stands in the atmosphere, height to scale: the station 1,841 feet above sea level with 6 per cent of the air below it; the standard atmosphere's pressure there, 27.98 inches of mercury, and temperature, 52.4 degrees Fahrenheit; the altimeter setting of 29.79 and the station pressure it means, 27.86.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RSPFIG. D WHERE CAMP DAVID STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHERECAMP DAVID6 PER CENT OF THE AIR BELOW IT1,841 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE27.98 inHgSTANDARD TEMPERATURE HERE52.4 FALTIMETER SETTING, REPORTED29.79 inHgITS BAROMETER READS27.86 inHgTEMPERATURE, REPORTED55.0 FTITLECamp David, the columnSTATION REPORT · ASOS RSPTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-09-27IDSR-RSP-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Camp David, in 5 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Hagerstown 1E (HGCM2), 7.5 miles from here, read 25 Sep, 23:59. measured daily

Elsewhere in Maryland

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

Near Mapleville

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