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Saco, Maine

City in York County, Maine

Air quality

The air at Saco

Index 24, good, led by ozone. Read at 6 AM from its reporting area, Southwest Coast (ME), 16 miles off.

24Good
  • Fine particles (PM2.5)18Good-
  • Ozone24Good18 ppb12.7 mi
  • Coarse particles (PM10)6Good-

The days ahead

Good each day through Tue Oct 20, led by ozone. Yesterday measured 26, good.

Smoke, the next 45 hours

No smoke near the ground through Sun 2 AM.

FriSat

Precipitation

What has fallen at Saco

None in the last 24 hours; 0.98 in over the last 3 days, to Fri 5 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.98in

Visibility

How far you can see at Saco, the next 45 hours

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

FriSat

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

What is measuring near here

The 6 instruments nearest Saco, 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

Saco 2.5 SSEME-YK-36

In a volunteer observer's own ground/0.4 mi away/67 ft/18 ft below here

precip, snowfall, snow depth

Rank-

KennebunkportKBPM1

At a cooperative observer's station/10.9 mi away/75 ft/10 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Portland INTL Jet, drawn

The nearest airport reporting now, 11.7 mi from Saco, Maine. From its report of Oct 16, 2026, 5:51 AM local time: 3 of its 6 sheets.

The sky

Scattered at 3,300 ft, broken at 8,000 ft, overcast at 9,500 ft; the ceiling is 8,000 ft; visibility 10 mi or more.

Section of the sky over Portland INTL Jet, height above the station to scale: scattered cloud with its base at 3,300 feet, broken cloud with its base at 8,000 feet, overcast cloud with its base at 9,500 feet, the ceiling at 8,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PWMFIG. A THE SKY OVER PORTLAND INTL JETSECTION, 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 9,500 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 8,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYSCT 3,300 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 8,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEPortland INTL Jet, the skySTATION REPORT · ASOS PWMTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-PWM-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018, FB-SKY-013, FB-SKY-014

The air

46.0 F with a dew point of 42.0 F, 86 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 900 ft up; the lowest cloud reported is at 3,300 ft.

Chart of the air at Portland INTL Jet: temperature 46.0 degrees Fahrenheit and dew point 42.0, 86 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 900 feet above the station, against the lowest cloud reported at 3,300 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PWMFIG. B THE AIR AT PORTLAND INTL JETTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00030 F40 F50 F60 FSATURATES 900 FT ABOVE THE STATION, AT 41.1 FLOWEST CLOUD REPORTED, SCT 3,300 FTTEMPERATURE 46.0 FDEW POINT 42.0 FSPREAD 4.0 FRELATIVE HUMIDITY 86 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 POINTTITLEPortland INTL Jet, the airSTATION REPORT · ASOS PWMTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-PWM-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 Portland INTL Jet, 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 PWMFIG. C THE WIND AT PORTLAND INTL JETPLAN, 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 FORCE73TITLEPortland INTL Jet, the windSTATION REPORT · ASOS PWMTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-PWM-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Portland INTL Jet, 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 Saco

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

Near Saco

River and lake gauges