Storm Station
Benson, Illinois
51° 74°/49°
Clear· Feels like 51°·Light breeze 6 mph E
Partly cloudy, with a low around 48. East wind around 3 mph.
0UV Low
-Air quality
83%Humidity
4%Cloud
Now
4:00 AM
51feels51
now, clear
Today
Sep 27
7449
overcast
Mon
Sep 28
7448
overcast
Tue
Sep 29
7854
overcast
Wed
Sep 30
8566
37%
16mph
overcast
Thu
Oct 1
7459
68%
14mph
showers light
Fri
Oct 2
6350
40%
13mph
overcast
Sat
Oct 3
6845
26%
12mph
drizzle light
51°
74°49°
74°48°
78°54°
85°66°
74°59°
63°50°
68°45°

As of 4:00 AM in Benson, Illinois.

What is measuring near here

The 4 instruments nearest Benson, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.5 miles away.

measured now2 instruments

LaconC75

At an airfield/18.1 mi away/568 ft/195 ft below here

temp, wind, gust, visibility, precip, pressure

Rank281of 417

Illinois River AT Peoria L/DPRAI2

At a river or reservoir gauge/30.7 mi away/463 ft/300 ft below here

temp, wind, gust, humidity, pressure

Rank406of 417

measured daily2 instruments

El Paso 5.2 NNWIL-WF-14

In a volunteer observer's own ground/4.5 mi away/721 ft/42 ft below here

precip, snowfall, snow depth

Rank-

RoanokeROAI2

At a cooperative observer's station/5.1 mi away/745 ft/18 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Lacon, drawn

The nearest airport reporting now, 18.1 mi from Benson. From its report of Sep 27, 2026, 3:55 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 Lacon, 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 C75FIG. A THE SKY OVER LACONSECTION, 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 MORE0510TITLELacon, the skySTATION REPORT · ASOS C75TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-C75-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

49.5 F with a dew point of 46.8 F, 90 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 600 ft up.

Chart of the air at Lacon: temperature 49.5 degrees Fahrenheit and dew point 46.8, 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; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT C75FIG. B THE AIR AT LACONTHE 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 46.2 FTEMPERATURE AND DEW POINT 49.5 F, 46.8 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 POINTTITLELacon, the airSTATION REPORT · ASOS C75TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-C75-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Lacon, 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 C75FIG. C THE WIND AT LACONPLAN, 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 FORCE73TITLELacon, the windSTATION REPORT · ASOS C75TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-C75-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Roanoke (ROAI2), 5.1 miles from here, read 26 Sep, 07:00. measured daily

Elsewhere in Illinois

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

Near Benson

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