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Port Jefferson, Ohio

Village in Shelby County, Ohio

Air quality

The air at Port Jefferson

Index 52, moderate, led by fine particles. Read at 8 AM from its reporting area, Lima (OH), 31 miles off.

52Moderate
  • Fine particles (PM2.5)52Moderate-
  • Ozone11Good8 ppb17 mi

The days ahead

Yesterday measured 54, moderate.

Smoke, the next 43 hours

No smoke near the ground through Sun 2 AM.

FriSat

Precipitation

What has fallen at Port Jefferson

0.19 in in the last 24 hours, and none in the 2 days before, to Fri 7 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.19in
Last 3 days
0.19in

Visibility

How far you can see at Port Jefferson, the next 43 hours

Visibility stays 9 miles or more through Sun 2 AM, lowest 9 miles Fri 12 PM.

FriSat

On the radar over Port Jefferson, OhioReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Port Jefferson, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.4 miles away.

measured now4 instruments

measured daily2 instruments

Sidney 2.9 NNEOH-SH-18

In a volunteer observer's own ground/2.4 mi away/1,022 ft/60 ft above here

precip, snowfall, snow depth

Rank-

Sidney 1 SSIDO1

At a cooperative observer's station/5.2 mi away/938 ft/24 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Bellefontaine, drawn

The nearest airport reporting now, 14.6 mi from Port Jefferson, Ohio. From its report of Oct 16, 2026, 8:35 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 2,000 ft, scattered at 4,300 ft, broken at 6,500 ft; the ceiling is 6,500 ft; visibility 10 mi or more.

Section of the sky over Bellefontaine, height above the station to scale: a few clouds cloud with its base at 2,000 feet, scattered cloud with its base at 4,300 feet, broken cloud with its base at 6,500 feet, the ceiling at 6,500 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EDJFIG. A THE SKY OVER BELLEFONTAINESECTION, 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 STATION02,5005,0007,50010,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETBKN 6,500 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYSCT 4,300 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYFEW 2,000 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYCEILING 6,500 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEBellefontaine, the skySTATION REPORT · ASOS EDJTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-EDJ-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

57.2 F with a dew point of 57.2 F, 100 per cent relative humidity. The air is saturated at the ground; the lowest cloud reported is at 2,000 ft.

Chart of the air at Bellefontaine: temperature 57.2 degrees Fahrenheit and dew point 57.2, 100 per cent relative humidity; the air saturated at the ground, against the lowest cloud reported at 2,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EDJFIG. B THE AIR AT BELLEFONTAINETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00050 F60 F70 FSATURATED AT THE GROUNDLOWEST CLOUD REPORTED, FEW 2,000 FTTEMPERATURE AND DEW POINT 57.2 F, 57.2 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 POINTTITLEBellefontaine, the airSTATION REPORT · ASOS EDJTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-EDJ-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (290 degrees) at 9 mph, gusting 16 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 25 mph.

Plan of the wind at Bellefontaine, north up: blowing from 290 degrees, the west northwest, at 9 miles an hour, gusting 16; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT EDJFIG. C THE WIND AT BELLEFONTAINEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE BREEZE13GUST, 16 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEBellefontaine, the windSTATION REPORT · ASOS EDJTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-EDJ-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Ohio

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

Near Port Jefferson

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

Near Port Jefferson

River and lake gauges