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Casco, Maine

Community in Cumberland County, Maine

Air quality

The air at Casco

Index 22, good, led by fine particles. Read at 7 PM from its reporting area, Western Interior (ME), 19 miles off.

22Good
  • Fine particles (PM2.5)22Good16.9 mi
  • Ozone14Good-
  • Coarse particles (PM10)6Good16.9 mi

The days ahead

Good each day through Wed Oct 21, led by ozone. Yesterday measured 26, good.

Smoke, the next 43 hours

No smoke near the ground through Sun 2 PM.

FriSatSun

Precipitation

What has fallen at Casco

0.19 in in the last 24 hours, 1.25 in over the last 3 days, to Fri 7 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.19in
Last 3 days
1.25in

Visibility

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

Visibility stays 8 miles or more through Sun 2 PM, lowest 8 miles Fri 8 PM.

FriSatSun

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

What is measuring near here

The 6 instruments nearest Casco, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.0 miles away.

measured now4 instruments

Citizen station GW4309GW4309

In a volunteer observer's own ground/2.0 mi away/330 ft/164 ft below here

temp, humidity, wind, precip, pressure

Rank-

Mechanic FallsMEFM1

At a river or reservoir gauge/9.5 mi away/338 ft/156 ft below here

temp, wind, gust, humidity, pressure

Rank-

Auburn-LewistonLEW

At an airfield/12.8 mi away/289 ft/205 ft below here

temp, wind, gust, visibility, precip, pressure

Rank-

Rt. 302 EB Fryeburg102696

Beside a road/21.2 mi away/-/- ft from here

temp, pavement temp, wind, visibility, precip

Rank-

measured daily2 instruments

Casco 4.3 SWME-CM-26

In a volunteer observer's own ground/3.8 mi away/337 ft/157 ft below here

precip, snowfall, snow depth

Rank-

OtisfieldOTFM1

At a cooperative observer's station/7.4 mi away/572 ft/78 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Auburn-Lewiston, drawn

The nearest airport reporting now, 12.8 mi from Casco, Maine. From its report of Oct 16, 2026, 6:56 PM local time: 3 of its 6 sheets.

The sky

Overcast at 500 ft; the ceiling is 500 ft; visibility 10 mi or more.

Section of the sky over Auburn-Lewiston, height above the station to scale: overcast cloud with its base at 500 feet, the ceiling at 500 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LEWFIG. A THE SKY OVER AUBURN-LEWISTONSECTION, 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 SHEETOVC 500 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 500 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEAuburn-Lewiston, the skySTATION REPORT · ASOS LEWTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-LEW-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

55.0 F with a dew point of 55.0 F, 100 per cent relative humidity. The air is saturated at the ground; the lowest cloud reported is at 500 ft.

Chart of the air at Auburn-Lewiston: temperature 55.0 degrees Fahrenheit and dew point 55.0, 100 per cent relative humidity; the air saturated at the ground, against the lowest cloud reported at 500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LEWFIG. B THE AIR AT AUBURN-LEWISTONTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00040 F50 F60 F70 FSATURATED AT THE GROUNDLOWEST CLOUD REPORTED, OVC 500 FTTEMPERATURE AND DEW POINT 55.0 F, 55.0 FRELATIVE HUMIDITY 100 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 POINTTITLEAuburn-Lewiston, the airSTATION REPORT · ASOS LEWTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-LEW-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south southwest (210 degrees) at 7 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Auburn-Lewiston, north up: blowing from 210 degrees, the south southwest, at 7 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 LEWFIG. C THE WIND AT AUBURN-LEWISTONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 210°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 7 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEAuburn-Lewiston, the windSTATION REPORT · ASOS LEWTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-LEW-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Otisfield (OTFM1), 7.4 miles from here, read 16 Oct, 08:00. measured daily

Elsewhere in Maine

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

Near Casco

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

Near Casco

River and lake gauges