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Chesterton, Indiana

Town in Porter County, Indiana

Air quality

The air at Chesterton

Index 27, good, led by fine particles. Read at 12 AM from its reporting area, Hammond-Gary (IN), 16 miles off.

27Good
  • Fine particles (PM2.5)27Good7.3 mi
  • Ozone9Good11 ppb6.2 mi
  • Coarse particles (PM10)6Good12.7 mi
  • Nitrogen dioxide4Good4.9 ppb12.7 mi
  • Sulfur dioxide0Good0.3 ppb12.7 mi

The days ahead

Good each day through Today, led by ozone. Yesterday measured 40, good.

Smoke, the next 43 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Chesterton

0.03 in in the last 24 hours, 0.25 in over the last 3 days, to Fri 12 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.03in
Last 3 days
0.25in

Visibility

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

Mist or haze: visibility falls to 1 miles Sat 5 AM.

FriSat

On the radar over Chesterton, IndianaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Chesterton, 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

ValparaisoVPZ

At an airfield/10.5 mi away/758 ft/115 ft above here

temp, wind, gust, visibility, precip, pressure

Rank4of 1,111

measured daily2 instruments

Chesterton 0.0 WNWIN-PT-54

In a volunteer observer's own ground/0.3 mi away/646 ft/3 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Valparaiso, drawn

The nearest airport reporting now, 10.5 mi from Chesterton, Indiana. From its report of Oct 16, 2026, 12:42 AM local time: 3 of its 6 sheets.

The sky

Broken at 1,500 ft, overcast at 2,200 ft; the ceiling is 1,500 ft; visibility 10 mi or more.

Section of the sky over Valparaiso, height above the station to scale: broken cloud with its base at 1,500 feet, overcast cloud with its base at 2,200 feet, the ceiling at 1,500 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT VPZFIG. A THE SKY OVER VALPARAISOSECTION, 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 STATION05001,0001,5002,0002,5003,0003,500ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 2,200 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 1,500 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 1,500 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEValparaiso, the skySTATION REPORT · ASOS VPZTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-VPZ-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

61.0 F with a dew point of 58.0 F, 90 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 700 ft up; the lowest cloud reported is at 1,500 ft.

Chart of the air at Valparaiso: temperature 61.0 degrees Fahrenheit and dew point 58.0, 90 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 700 feet above the station, against the lowest cloud reported at 1,500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT VPZFIG. B THE AIR AT VALPARAISOTHE 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 FSATURATES 700 FT ABOVE THE STATION, AT 57.3 FLOWEST CLOUD REPORTED, BKN 1,500 FTTEMPERATURE 61.0 FDEW POINT 58.0 FSPREAD 3.0 FRELATIVE HUMIDITY 90 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 POINTTITLEValparaiso, the airSTATION REPORT · ASOS VPZTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-VPZ-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 20 mph, gusting 29 mph: force 5, a fresh breeze on the Beaufort scale. The strongest gust today was 35 mph.

Plan of the wind at Valparaiso, north up: blowing from 290 degrees, the west northwest, at 20 miles an hour, gusting 29; beside it the Beaufort scale from calm to hurricane force, force 5, fresh breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT VPZFIG. C THE WIND AT VALPARAISOPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE19NOW, 20 MPH6STRONG BREEZE25GUST, 29 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEValparaiso, the windSTATION REPORT · ASOS VPZTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-VPZ-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Indiana Dunes National Park (IDNI3), 2.5 miles from here, read 15 Oct, 08:00. measured daily

Elsewhere in Indiana

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

Near Chesterton

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

Near Chesterton

River and lake gauges