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Newcastle, Maine

Community in Lincoln County, Maine

Air quality

The air at Newcastle

Index 32, good, led by fine particles. Read at 11 PM from its reporting area, Western Interior (ME), 32 miles off.

32Good
  • Fine particles (PM2.5)32Good-
  • Ozone8Good-
  • Coarse particles (PM10)12Good-

The days ahead

Good each day through Tue Oct 20, led by ozone. Yesterday measured 19, good.

Smoke, the next 46 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Newcastle

None in the last 24 hours; 1.05 in over the last 3 days, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
1.05in

Visibility

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

Dense fog: visibility falls to 0.1 miles Fri 3 PM, under a mile for 3 hours.

FriSat

On the radar over Newcastle, MaineReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Newcastle, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.5 miles away.

measured now4 instruments

WiscassetIWI

At an airfield/10.4 mi away/69 ft/46 ft above here

temp, wind, gust, visibility, precip, pressure

Rank117of 422

measured daily2 instruments

Newcastle 0.1 SEME-LN-6

In a volunteer observer's own ground/0.5 mi away/26 ft/3 ft above here

precip, snowfall, snow depth

Rank-

NewcastleNEWM1

At a cooperative observer's station/0.6 mi away/151 ft/128 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Wiscasset, drawn

The nearest airport reporting now, 10.4 mi from Newcastle, Maine. From its report of Oct 15, 2026, 10:53 PM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Wiscasset, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT IWIFIG. A THE SKY OVER WISCASSETSECTION, 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 SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEWiscasset, the skySTATION REPORT · ASOS IWITYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-IWI-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

40.0 F with a dew point of 35.0 F, 82 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,100 ft up.

Chart of the air at Wiscasset: temperature 40.0 degrees Fahrenheit and dew point 35.0, 82 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,100 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT IWIFIG. B THE AIR AT WISCASSETTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00020 F30 F40 F50 FSATURATES 1,100 FT ABOVE THE STATION, AT 33.9 FTEMPERATURE 40.0 FDEW POINT 35.0 FSPREAD 5.0 FRELATIVE HUMIDITY 82 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 POINTTITLEWiscasset, the airSTATION REPORT · ASOS IWITYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-IWI-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Wiscasset, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT IWIFIG. C THE WIND AT WISCASSETPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEWiscasset, the windSTATION REPORT · ASOS IWITYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-IWI-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Wiscasset, in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in Maine

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

Near Newcastle

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

Near Newcastle

River and lake gauges