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Chestertown, Maryland

Town in Kent County, Maryland

Air quality

The air at Chestertown

Index 16, good, led by ozone. Read at 2 AM from its reporting area, Upper Eastern Shore (MD), 5 miles off.

16Good
  • Fine particles (PM2.5)0Good17.9 mi
  • Ozone16Good12 ppb15.7 mi
  • Nitrogen dioxide3Good3 ppb22.5 mi
  • Sulfur dioxide0Good0.1 ppb22.5 mi

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 28, good.

Smoke, the next 42 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 11 or under.

FriSat

Precipitation

What has fallen at Chestertown

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

Last 24 hours
0.04in
Last 3 days
0.04in

Visibility

How far you can see at Chestertown, the next 42 hours

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

FriSat

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

What is measuring near here

The 6 instruments nearest Chestertown, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.4 miles away.

measured now4 instruments

measured daily2 instruments

Chestertown 0.5 SMD-KN-13

In a volunteer observer's own ground/0.4 mi away/32 ft/23 ft below here

precip, snowfall, snow depth

Rank-

Queenstown 3SQNSM2

At a cooperative observer's station/19.5 mi away/10 ft/45 ft below here

snowfall, snow depth, precip, high, low

Rank353of 736

Station report

The weather at MD 20 at MD 21, drawn

The nearest instrument reporting now, 6.6 mi from Chestertown, Maryland. From its report of Oct 16, 2026, 2:10 AM local time: 3 of its 5 sheets.

The air

59.4 F with a dew point of 57.7 F, 94 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 400 ft up.

Chart of the air at MD 20 at MD 21: temperature 59.4 degrees Fahrenheit and dew point 57.7, 94 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 400 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MD101FIG. B THE AIR AT MD 20 AT MD 21THE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00050 F60 F70 FSATURATES 400 FT ABOVE THE STATION, AT 57.2 FTEMPERATURE AND DEW POINT 59.4 F, 57.7 FRELATIVE HUMIDITY 94 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 POINTTITLEMD 20 at MD 21, the airSTATION REPORT · RWIS MD101TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-16IDSR-MD101-1DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south (179 degrees) at 2 mph, gusting 3 mph: force 1, a light air on the Beaufort scale. The strongest gust today was 5 mph.

Plan of the wind at MD 20 at MD 21, north up: blowing from 179 degrees, the south, at 2 miles an hour, gusting 3; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MD101FIG. C THE WIND AT MD 20 AT MD 21PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 179°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 2 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMD 20 at MD 21, the windSTATION REPORT · RWIS MD101TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-16IDSR-MD101-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 62 ft above sea level, 0 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.85 inHg and the temperature at 58.8 F; it reports 59.4 F, 0.7 F warmer than standard.

Section from sea level of where MD 20 at MD 21 stands in the atmosphere, height to scale: the station 62 feet above sea level with 0 per cent of the air below it; the standard atmosphere's pressure there, 29.85 inches of mercury, and temperature, 58.8 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MD101FIG. D WHERE MD 20 AT MD 21 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 ATMOSPHEREMD 20 AT MD 210 PER CENT OF THE AIR BELOW IT62 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 HERE29.85 inHgSTANDARD TEMPERATURE HERE58.8 FTEMPERATURE, REPORTED59.4 FTITLEMD 20 at MD 21, the columnSTATION REPORT · RWIS MD101TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-16IDSR-MD101-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of MD 20 at MD 21, in 5 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in Maryland

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

Near Chestertown

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

Near Chestertown

River and lake gauges