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Mercer, Wisconsin

Community in Iron County, Wisconsin

Air quality

The air at Mercer

Index 17, good, led by ozone. Read at 12 AM from its reporting area, Northwoods West (WI), 61 miles off.

17Good
  • Fine particles (PM2.5)7Good-
  • Ozone17Good16 ppb21.2 mi

The days ahead

Good each day through Sat Oct 17, led by ozone. Yesterday measured 21, good.

Smoke, the next 43 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Mercer

0.51 in in the last 24 hours, and none in the 2 days before, to Fri 12 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.51in
Last 3 days
0.51in

Visibility

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

Visibility stays 6 miles or more through Sat 7 PM, lowest 7 miles Fri 1 AM.

FriSat

On the radar over Mercer, WisconsinReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Mercer, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.3 miles away.

measured now4 instruments

USH 51 at STH 182WI082

Beside a road/3.5 mi away/1,591 ft/12 ft below here

temp, pavement temp, wind, visibility, precip

Rank-

measured daily2 instruments

Mercer 0.4 NWI-IR-5

In a volunteer observer's own ground/0.3 mi away/1,614 ft/11 ft above here

precip, snowfall, snow depth

Rank708of 1,313

MercerMERW3

At a cooperative observer's station/0.4 mi away/1,621 ft/18 ft above here

snowfall, snow depth, precip, high, low

Rank1,141of 1,313

Station report

The weather at Manitowish Waters, drawn

The nearest airport reporting now, 9.3 mi from Mercer, Wisconsin. From its report of Oct 16, 2026, 12:55 AM local time: 3 of its 6 sheets.

The sky

Overcast at 1,000 ft; the ceiling is 1,000 ft; visibility 5 mi.

Section of the sky over Manitowish Waters, height above the station to scale: overcast cloud with its base at 1,000 feet, the ceiling at 1,000 feet, and visibility of 5 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT D25FIG. A THE SKY OVER MANITOWISH WATERSSECTION, 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 1,000 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 1,000 FTVISIBILITY, MILES: 5 MI0510TITLEManitowish Waters, the skySTATION REPORT · ASOS D25TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-D25-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

45.0 F with a dew point of 44.8 F, 99 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 100 ft up; the lowest cloud reported is at 1,000 ft.

Chart of the air at Manitowish Waters: temperature 45.0 degrees Fahrenheit and dew point 44.8, 99 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 100 feet above the station, against the lowest cloud reported at 1,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT D25FIG. B THE AIR AT MANITOWISH WATERSTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00030 F40 F50 F60 FSATURATES 100 FT ABOVE THE STATION, AT 44.7 FLOWEST CLOUD REPORTED, OVC 1,000 FTTEMPERATURE AND DEW POINT 45.0 F, 44.8 FRELATIVE HUMIDITY 99 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 POINTTITLEManitowish Waters, the airSTATION REPORT · ASOS D25TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-D25-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (340 degrees) at 8 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Manitowish Waters, north up: blowing from 340 degrees, the north northwest, at 8 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT D25FIG. C THE WIND AT MANITOWISH WATERSPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 340°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 8 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEManitowish Waters, the windSTATION REPORT · ASOS D25TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-D25-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Mercer (MERW3), 0.4 miles from here, read 15 Oct, 08:00. measured daily

Elsewhere in Wisconsin

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

Near Mercer

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

Near Mercer

River and lake gauges