Storm Station
St. Jacob, Illinois
57°
Mostly clear· Feels like 57°·Calm 0 mph N
A chance of rain showers before 11am. Mostly cloudy, with a high near 74. Northeast wind around 3 mph. Chance of precipitation is 40%.
-UV
-Air quality
83%Humidity
37%Cloud

What is measuring near here

The 4 instruments nearest St. Jacob, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.8 miles away.

measured now2 instruments

Belleville - Scott AFBBLV

At an airfield/12.7 mi away/440 ft/70 ft below here

temp, wind, gust, visibility, precip, pressure

Rank43of 417

measured daily2 instruments

Highland 5.0 WIL-MD-57

In a volunteer observer's own ground/0.8 mi away/509 ft/1 ft below here

precip, snowfall, snow depth

Rank-

HighlandHGHI2

At a cooperative observer's station/5.6 mi away/518 ft/8 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Belleville - Scott AFB, drawn

The nearest airport reporting now, 12.7 mi from St. Jacob. From its report of Sep 27, 2026, 6:59 AM local time: 3 of its 6 sheets.

The sky

Overcast at 9,000 ft; the ceiling is 9,000 ft; visibility 10 mi or more.

Section of the sky over Belleville - Scott AFB, height above the station to scale: overcast cloud with its base at 9,000 feet, the ceiling at 9,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BLVFIG. A THE SKY OVER BELLEVILLE - SCOTT AFBSECTION, 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 STATION02,5005,0007,50010,00012,50015,000ETAGESLOWMIDDLETHE STATIONOVC 9,000 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 9,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEBelleville - Scott AFB, the skySTATION REPORT · ASOS BLVTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-BLV-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-013, FB-SKY-014

The air

60.8 F with a dew point of 59.0 F, 94 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 400 ft up; the lowest cloud reported is at 9,000 ft.

Chart of the air at Belleville - Scott AFB: temperature 60.8 degrees Fahrenheit and dew point 59.0, 94 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 400 feet above the station, against the lowest cloud reported at 9,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BLVFIG. B THE AIR AT BELLEVILLE - SCOTT AFBTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00050 F60 F70 FSATURATES 400 FT ABOVE THE STATION, AT 58.6 FABOVE THIS SHEET: LOWEST CLOUD REPORTED, OVC 9,000 FTTEMPERATURE AND DEW POINT 60.8 F, 59.0 FRELATIVE HUMIDITY 94 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 POINTTITLEBelleville - Scott AFB, the airSTATION REPORT · ASOS BLVTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-BLV-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Belleville - Scott AFB, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BLVFIG. C THE WIND AT BELLEVILLE - SCOTT AFBPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEBelleville - Scott AFB, the windSTATION REPORT · ASOS BLVTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-BLV-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Belleville - Scott AFB, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Highland (HGHI2), 5.6 miles from here, read 27 Sep, 07:00. measured daily

Elsewhere in Illinois

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

Near St. Jacob

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