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Silver Spring, Maryland

Community in Montgomery County, Maryland

Air quality

The air at Silver Spring

Index 23, good, led by ozone. Read at 1 AM from its reporting area, Suburban DC (MD), 4 miles off.

23Good
  • Fine particles (PM2.5)21Good13.6 mi
  • Ozone23Good12 ppb8.5 mi
  • Nitrogen dioxide3Good3.2 ppb8.5 mi
  • Sulfur dioxide0Good0 ppb8.5 mi
  • Carbon monoxide-0.1 ppm8.5 mi

The days ahead

Good each day through Wed Oct 21, led by fine particles. Yesterday measured 7, good.

Smoke, the next 43 hours

No smoke near the ground through Sun 8 PM.

SatSun

Precipitation

What has fallen at Silver Spring

0.17 in in the last 24 hours, and none in the 2 days before, to Sat 1 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.17in
Last 3 days
0.17in

Visibility

How far you can see at Silver Spring, the next 43 hours

Visibility stays 6 miles or more through Sun 8 PM, lowest 6 miles Sat 4 AM.

SatSun

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

What is measuring near here

The 7 instruments nearest Silver Spring, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.6 miles away.

measured now5 instruments

College ParkCGS

At an airfield/5.3 mi away/48 ft/258 ft below here

temp, wind, gust, visibility, precip, pressure

Rank74of 742

Powder MillS2049

At a soil climate station/9.2 mi away/105 ft/201 ft below here

temp, humidity, soil temp, soil moisture

Rank726of 742

measured daily2 instruments

Silver Spring 1.5 SMD-MG-75

In a volunteer observer's own ground/0.6 mi away/340 ft/34 ft above here

precip, snowfall, snow depth

Rank-

BeltsvilleBTVM2

At a cooperative observer's station/7.7 mi away/138 ft/168 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at College Park, drawn

The nearest airport reporting now, 5.3 mi from Silver Spring, Maryland. From its report of Oct 17, 2026, 2:15 AM local time: 3 of its 6 sheets.

The sky

Overcast at 10,000 ft; the ceiling is 10,000 ft; visibility 10 mi or more.

Section of the sky over College Park, height above the station to scale: overcast cloud with its base at 10,000 feet, the ceiling at 10,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CGSFIG. A THE SKY OVER COLLEGE PARKSECTION, 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 STATION02,5005,0007,50010,00012,50015,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FTOVC 10,000 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 10,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLECollege Park, the skySTATION REPORT · ASOS CGSTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-CGS-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-013, FB-SKY-014

The air

60.3 F with a dew point of 52.5 F, 75 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,800 ft up; the lowest cloud reported is at 10,000 ft.

Chart of the air at College Park: temperature 60.3 degrees Fahrenheit and dew point 52.5, 75 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,800 feet above the station, against the lowest cloud reported at 10,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CGSFIG. B THE AIR AT COLLEGE PARKTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,0007,0008,00040 F50 F60 F70 FSATURATES 1,800 FT ABOVE THE STATION, AT 50.7 FABOVE THIS SHEET: LOWEST CLOUD REPORTED, OVC 10,000 FTTEMPERATURE 60.3 FDEW POINT 52.5 FSPREAD 7.8 FRELATIVE HUMIDITY 75 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 POINTTITLECollege Park, the airSTATION REPORT · ASOS CGSTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-CGS-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (320 degrees) at 6 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at College Park, north up: blowing from 320 degrees, the northwest, at 6 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 CGSFIG. C THE WIND AT COLLEGE PARKPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 320°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECollege Park, the windSTATION REPORT · ASOS CGSTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-CGS-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of College Park, in 6 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 Silver Spring

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

Near Silver Spring

River and lake gauges