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Alpha, Illinois

Village in Henry County, Illinois

Air quality

The air at Alpha

Index 11, good, led by ozone. Read at 12 AM from its reporting area, Rock Island-Moline (IL), 10 miles off.

11Good
  • Fine particles (PM2.5)7Good23.5 mi
  • Ozone11Good17 ppb23.5 mi
  • Coarse particles (PM10)-25 mi

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 32, good.

Smoke, the next 43 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Alpha

0.35 in in the last 24 hours, 0.54 in over the last 3 days, to Fri 12 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.35in
Last 3 days
0.54in

Visibility

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

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

FriSat

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

What is measuring near here

The 6 instruments nearest Alpha, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.0 miles away.

measured now4 instruments

GalesburgGBG

At an airfield/17.8 mi away/804 ft/level with here

temp, wind, gust, visibility, precip, pressure

Rank402of 1,393

measured daily2 instruments

AltonaAOAI2

At a cooperative observer's station/12.2 mi away/771 ft/33 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Galesburg, drawn

The nearest airport reporting now, 17.8 mi from Alpha, Illinois. From its report of Oct 16, 2026, 12:35 AM local time: 3 of its 6 sheets.

The sky

Broken at 2,100 ft, overcast at 2,700 ft; the ceiling is 2,100 ft; visibility 10 mi or more.

Section of the sky over Galesburg, height above the station to scale: broken cloud with its base at 2,100 feet, overcast cloud with its base at 2,700 feet, the ceiling at 2,100 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GBGFIG. A THE SKY OVER GALESBURGSECTION, 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 STATION01,0002,0003,0004,0005,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 2,700 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 2,100 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 2,100 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEGalesburg, the skySTATION REPORT · ASOS GBGTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-GBG-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

51.3 F with a dew point of 48.6 F, 90 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 600 ft up; the lowest cloud reported is at 2,100 ft.

Chart of the air at Galesburg: temperature 51.3 degrees Fahrenheit and dew point 48.6, 90 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 600 feet above the station, against the lowest cloud reported at 2,100 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GBGFIG. B THE AIR AT GALESBURGTHE 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 600 FT ABOVE THE STATION, AT 47.9 FLOWEST CLOUD REPORTED, BKN 2,100 FTTEMPERATURE AND DEW POINT 51.3 F, 48.6 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 POINTTITLEGalesburg, the airSTATION REPORT · ASOS GBGTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-GBG-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (300 degrees) at 15 mph, gusting 23 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 25 mph.

Plan of the wind at Galesburg, north up: blowing from 300 degrees, the west northwest, at 15 miles an hour, gusting 23; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GBGFIG. C THE WIND AT GALESBURGPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 300°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 15 MPH5FRESH BREEZE19GUST, 23 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEGalesburg, the windSTATION REPORT · ASOS GBGTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-GBG-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Mississippi River AT Rock Island LD15 (RCKI2), 24.4 miles from here, read 15 Oct, 23:59. measured daily

Elsewhere in Illinois

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

Near Alpha

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

Near Alpha

River and lake gauges