Storm Station
Sign in

Germantown, Maryland

Community in Montgomery County, Maryland

Air quality

The air at Germantown

Index 14, good, led by ozone. Read at 11 PM from its reporting area, Suburban DC (MD), 18 miles off.

14Good
  • Fine particles (PM2.5)0Good9.5 mi
  • Ozone14Good11 ppb9.5 mi
  • Nitrogen dioxide4Good4.2 ppb22.4 mi
  • Sulfur dioxide0Good0 ppb22.4 mi
  • Carbon monoxide-0.1 ppm22.4 mi

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 48, good.

Smoke, the next 46 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Germantown

0.08 in in the last 24 hours, and none in the 2 days before, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.08in
Last 3 days
0.08in

Visibility

How far you can see at Germantown, the next 46 hours

Visibility stays 7 miles or more through Sat 8 PM, lowest 7 miles Fri 9 AM.

FriSat

On the radar over Germantown, MarylandReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Germantown, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.4 miles away.

measured now5 instruments

GaithersburgGAI

At an airfield/5.4 mi away/539 ft/66 ft above here

temp, wind, gust, visibility, precip, pressure

Rank76of 736

Powder MillS2049

At a soil climate station/24.9 mi away/105 ft/368 ft below here

temp, humidity, soil temp, soil moisture

Rank734of 736

measured daily2 instruments

Germantown 1.7 WMD-MG-142

In a volunteer observer's own ground/1.4 mi away/432 ft/41 ft below here

precip, snowfall, snow depth

Rank-

Damascus 3 SSWDMAM2

At a cooperative observer's station/6.6 mi away/676 ft/203 ft above here

snowfall, snow depth, precip, high, low

Rank31of 736

Station report

The weather at Gaithersburg, drawn

The nearest airport reporting now, 5.4 mi from Germantown, Maryland. From its report of Oct 15, 2026, 11:12 PM local time: 3 of its 5 sheets.

The sky

Scattered at 600 ft, overcast at 1,400 ft; the ceiling is 1,400 ft; visibility 6 mi.

Section of the sky over Gaithersburg, height above the station to scale: scattered cloud with its base at 600 feet, overcast cloud with its base at 1,400 feet, the ceiling at 1,400 feet, and visibility of 6 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GAIFIG. A THE SKY OVER GAITHERSBURGSECTION, 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 STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 1,400 FTOVERCAST, 8 EIGHTHS OF THE SKYSCT 600 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 1,400 FTVISIBILITY, MILES: 6 MI0510TITLEGaithersburg, the skySTATION REPORT · ASOS GAITYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-16IDSR-GAI-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The wind

From the southeast (130 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Gaithersburg, north up: blowing from 130 degrees, the southeast, at 3 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GAIFIG. C THE WIND AT GAITHERSBURGPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 130°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEGaithersburg, the windSTATION REPORT · ASOS GAITYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-16IDSR-GAI-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The column

At 539 ft above sea level, 2 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.34 inHg and the temperature at 57.1 F; the station's altimeter setting of 30.13 inHg means its barometer reads 29.55 inHg; it reports 57.2 F, 0.1 F warmer than standard.

Section from sea level of where Gaithersburg stands in the atmosphere, height to scale: the station 539 feet above sea level with 2 per cent of the air below it; the standard atmosphere's pressure there, 29.34 inches of mercury, and temperature, 57.1 degrees Fahrenheit; the altimeter setting of 30.13 and the station pressure it means, 29.55.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GAIFIG. D WHERE GAITHERSBURG 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 ATMOSPHEREGAITHERSBURG2 PER CENT OF THE AIR BELOW IT539 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 HERE29.34 inHgSTANDARD TEMPERATURE HERE57.1 FALTIMETER SETTING, REPORTED30.13 inHgITS BAROMETER READS29.55 inHgTEMPERATURE, REPORTED57.2 FTITLEGaithersburg, the columnSTATION REPORT · ASOS GAITYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-16IDSR-GAI-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

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

-

Snow on the ground

Elsewhere in Maryland

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

Near Germantown

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

Near Germantown

River and lake gauges