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Durham, New Hampshire

Community in Strafford County, New Hampshire

Air quality

The air at Durham

Index 27, good, led by fine particles. Read at 1 AM from its reporting area, Coastal Rockingham County (NH), 10 miles off.

27Good
  • Fine particles (PM2.5)27Good10.2 mi
  • Ozone5Good0 ppb10.2 mi
  • Coarse particles (PM10)9Good10.2 mi
  • Sulfur dioxide1Good1.8 ppb10.2 mi

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 12, good.

Smoke, the next 43 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Durham

None in the last 24 hours; 0.63 in over the last 3 days, to Fri 1 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.63in

Visibility

How far you can see at Durham, the next 43 hours

Mist or haze: visibility falls to 1 mile Fri 12 PM.

FriSat

On the radar over Durham, New HampshireReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Durham, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.0 miles away.

measured now5 instruments

Durham 2 N54794

At a climate reference station/2.4 mi away/119 ft/59 ft above here

temp, humidity, wind, solar, precip

Rank206of 385

measured daily2 instruments

Durham 0.6 NENH-ST-8

In a volunteer observer's own ground/1.0 mi away/54 ft/6 ft below here

precip, snowfall, snow depth

Rank-

DurhamDURN3

At a cooperative observer's station/1.4 mi away/112 ft/52 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Pease AFB/Portsmout, drawn

The nearest airport reporting now, 6.7 mi from Durham, New Hampshire. From its report of Oct 16, 2026, 12:55 AM local time: 3 of its 6 sheets.

The sky

Overcast at 22,000 ft; the ceiling is 22,000 ft; visibility 10 mi or more.

Section of the sky over Pease AFB/Portsmout, height above the station to scale: overcast cloud with its base at 22,000 feet, the ceiling at 22,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PSMFIG. A THE SKY OVER PEASE AFB/PORTSMOUTSECTION, 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 STATION05,00010,00015,00020,00025,00030,00035,000ETAGESLOWMIDDLEHIGHTHE STATIONOVC 22,000 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 22,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEPease AFB/Portsmout, the skySTATION REPORT · ASOS PSMTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-PSM-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-013, FB-SKY-014, FB-SKY-010, FB-SKY-011, FB-SKY-012

The air

44.6 F with a dew point of 42.4 F, 92 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 500 ft up; the lowest cloud reported is at 22,000 ft.

Chart of the air at Pease AFB/Portsmout: temperature 44.6 degrees Fahrenheit and dew point 42.4, 92 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 500 feet above the station, against the lowest cloud reported at 22,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PSMFIG. B THE AIR AT PEASE AFB/PORTSMOUTTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00030 F40 F50 F60 FSATURATES 500 FT ABOVE THE STATION, AT 41.9 FABOVE THIS SHEET: LOWEST CLOUD REPORTED, OVC 22,000 FTTEMPERATURE AND DEW POINT 44.6 F, 42.4 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 POINTTITLEPease AFB/Portsmout, the airSTATION REPORT · ASOS PSMTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-PSM-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Pease AFB/Portsmout, 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 PSMFIG. C THE WIND AT PEASE AFB/PORTSMOUTPLAN, 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 FORCE73TITLEPease AFB/Portsmout, the windSTATION REPORT · ASOS PSMTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-PSM-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Pease AFB/Portsmout, in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in New Hampshire

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

Near Durham

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

Near Durham

River and lake gauges