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Hamel, Illinois

Village in Madison County, Illinois

Air quality

The air at Hamel

Index 15, good, led by ozone. Read at 5 AM from its reporting area, St. Louis (Metro-east) (IL), 23 miles off.

15Good
  • Fine particles (PM2.5)9Good13.9 mi
  • Ozone15Good11 ppb13.9 mi
  • Coarse particles (PM10)4Good20.2 mi
  • Nitrogen dioxide2Good2.4 ppb20.3 mi
  • Sulfur dioxide0Good0.4 ppb24.8 mi
  • Carbon monoxide-0.1 ppm24.8 mi

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 18, good.

Smoke, the next 44 hours

No smoke near the ground through Mon 1 AM.

SatSun

Precipitation

What has fallen at Hamel

0.02 in in the last 24 hours, 1.25 in over the last 3 days, to Sat 5 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.02in
Last 3 days
1.25in

Visibility

How far you can see at Hamel, the next 44 hours

Visibility stays 9 miles or more through Mon 1 AM, lowest 9 miles Sat 7 AM.

SatSun

On the radar over Hamel, IllinoisReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Hamel, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.6 miles away.

measured now4 instruments

measured daily2 instruments

Alhambra 3.1 WSWIL-MD-30

In a volunteer observer's own ground/3.6 mi away/532 ft/14 ft below here

precip, snowfall, snow depth

Rank-

HighlandHGHI2

At a cooperative observer's station/14.5 mi away/518 ft/28 ft below here

snowfall, snow depth, precip, high, low

Rank49of 1,419

Station report

The weather at Alton/St Louis R, drawn

The nearest airport reporting now, 10.7 mi from Hamel, Illinois. From its report of Oct 17, 2026, 6:15 AM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Alton/St Louis R, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ALNFIG. A THE SKY OVER ALTON/ST LOUIS RSECTION, 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 SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEAlton/St Louis R, the skySTATION REPORT · ASOS ALNTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-ALN-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

41.7 F with a dew point of 37.4 F, 85 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,000 ft up.

Chart of the air at Alton/St Louis R: temperature 41.7 degrees Fahrenheit and dew point 37.4, 85 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,000 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ALNFIG. B THE AIR AT ALTON/ST LOUIS RTHE 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 FSATURATES 1,000 FT ABOVE THE STATION, AT 36.4 FTEMPERATURE 41.7 FDEW POINT 37.4 FSPREAD 4.3 FRELATIVE HUMIDITY 85 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 POINTTITLEAlton/St Louis R, the airSTATION REPORT · ASOS ALNTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-ALN-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (340 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Alton/St Louis R, north up: blowing from 340 degrees, the north northwest, at 3 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ALNFIG. C THE WIND AT ALTON/ST LOUIS RPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 340°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEAlton/St Louis R, the windSTATION REPORT · ASOS ALNTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-ALN-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Alton/St Louis R, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Highland (HGHI2), 14.5 miles from here, read 16 Oct, 07:00. measured daily

Elsewhere in Illinois

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

Near Hamel

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

Near Hamel

River and lake gauges