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Preston, Maryland

Town in Caroline County, Maryland

Air quality

The air at Preston

Index 20, good, led by ozone. Read at 12 AM from its reporting area, Lower Eastern Shore (MD), 5 miles off.

20Good
  • Fine particles (PM2.5)14Good16.6 mi
  • Ozone20Good20 ppb15.1 mi
  • Coarse particles (PM10)5Good-
  • Sulfur dioxide0Good0 ppb15.1 mi

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 54, moderate.

Smoke, the next 44 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 17 or under.

FriSat

Precipitation

What has fallen at Preston

None in the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Preston, the next 44 hours

Visibility stays 3 miles or more through Sat 8 PM, lowest 4 miles Sat 12 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Preston, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.1 miles away.

measured now4 instruments

EastonESN

At an airfield/10.7 mi away/72 ft/28 ft above here

temp, wind, gust, visibility, precip, pressure

Rank521of 736

CambridgeNDBC-CAMM2

At a river or reservoir gauge/12.8 mi away/-/- ft from here

temp, wind, gust, humidity, pressure

Rank680of 736

measured daily2 instruments

Preston 3.1 NNEMD-CL-13

In a volunteer observer's own ground/3.1 mi away/54 ft/10 ft above here

precip, snowfall, snow depth

Rank-

Royal Oak 2SSWROYM2

At a cooperative observer's station/15.1 mi away/5 ft/39 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Easton, drawn

The nearest airport reporting now, 10.7 mi from Preston, Maryland. From its report of Oct 16, 2026, 12:55 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 2,900 ft, broken at 4,000 ft, overcast at 5,500 ft; the ceiling is 4,000 ft; visibility 9 mi.

Section of the sky over Easton, height above the station to scale: a few clouds cloud with its base at 2,900 feet, broken cloud with its base at 4,000 feet, overcast cloud with its base at 5,500 feet, the ceiling at 4,000 feet, and visibility of 9 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ESNFIG. A THE SKY OVER EASTONSECTION, 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 STATION02,5005,0007,50010,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 5,500 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 4,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYFEW 2,900 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYCEILING 4,000 FTVISIBILITY, MILES: 9 MI0510TITLEEaston, the skySTATION REPORT · ASOS ESNTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-ESN-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

61.0 F with a dew point of 58.6 F, 92 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 600 ft up; the lowest cloud reported is at 2,900 ft.

Chart of the air at Easton: temperature 61.0 degrees Fahrenheit and dew point 58.6, 92 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 600 feet above the station, against the lowest cloud reported at 2,900 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ESNFIG. B THE AIR AT EASTONTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00050 F60 F70 FSATURATES 600 FT ABOVE THE STATION, AT 58.0 FLOWEST CLOUD REPORTED, FEW 2,900 FTTEMPERATURE AND DEW POINT 61.0 F, 58.6 FRELATIVE HUMIDITY 92 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 POINTTITLEEaston, the airSTATION REPORT · ASOS ESNTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-ESN-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the southeast (140 degrees) at 5 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Easton, north up: blowing from 140 degrees, the southeast, 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 ESNFIG. C THE WIND AT EASTONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 140°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEEaston, the windSTATION REPORT · ASOS ESNTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-ESN-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Easton, 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 Preston

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

Near Preston

River and lake gauges