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Sister Bay, Wisconsin

Village in Door County, Wisconsin

Air quality

The air at Sister Bay

Index 25, good, led by ozone. Read at 12 AM from its reporting area, Kewaunee-Door (WI), 32 miles off.

25Good
  • Ozone25Good18 ppb7.3 mi

The days ahead

Good each day through Sat Oct 17, led by ozone. Yesterday measured 26, good.

Smoke, the next 43 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Sister Bay

0.65 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
0.65in
Last 3 days
0.65in

Visibility

How far you can see at Sister Bay, the next 43 hours

Visibility stays 4 miles or more through Sat 7 PM, lowest 4 miles Fri 8 AM.

FriSat

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

What is measuring near here

The 4 instruments nearest Sister Bay, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.4 miles away.

measured now2 instruments

Ephraim3D2

At an airfield/4.6 mi away/754 ft/52 ft above here

temp, wind, gust, visibility, precip, pressure

Rank378of 1,313

measured daily2 instruments

Station report

The weather at Ephraim, drawn

The nearest airport reporting now, 4.6 mi from Sister Bay, Wisconsin. From its report of Oct 16, 2026, 12:55 AM local time: 3 of its 6 sheets.

The sky

Overcast at 500 ft; the ceiling is 500 ft; visibility 7 mi.

Section of the sky over Ephraim, height above the station to scale: overcast cloud with its base at 500 feet, the ceiling at 500 feet, and visibility of 7 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 3D2FIG. A THE SKY OVER EPHRAIMSECTION, 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: 7 MI0510TITLEEphraim, the skySTATION REPORT · ASOS 3D2TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-3D2-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

48.0 F with a dew point of 47.0 F, 96 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 200 ft up; the lowest cloud reported is at 500 ft.

Chart of the air at Ephraim: temperature 48.0 degrees Fahrenheit and dew point 47.0, 96 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 200 feet above the station, against the lowest cloud reported at 500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 3D2FIG. B THE AIR AT EPHRAIMTHE 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 FSATURATES 200 FT ABOVE THE STATION, AT 46.7 FLOWEST CLOUD REPORTED, OVC 500 FTTEMPERATURE AND DEW POINT 48.0 F, 47.0 FRELATIVE HUMIDITY 96 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 POINTTITLEEphraim, the airSTATION REPORT · ASOS 3D2TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-3D2-2DRAWN 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 12 mph, gusting 20 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 20 mph.

Plan of the wind at Ephraim, north up: blowing from 340 degrees, the north northwest, at 12 miles an hour, gusting 20; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 3D2FIG. C THE WIND AT EPHRAIMPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 340°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 12 MPH4MODERATE BREEZE135FRESH BREEZE19GUST, 20 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEEphraim, the windSTATION REPORT · ASOS 3D2TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-3D2-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Wisconsin

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

Near Sister Bay

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

Near Sister Bay

River and lake gauges