Storm Station
Belknap, Illinois
59° 77°/57°
Clear· Feels like 59°·Light air 2 mph NE
Mostly cloudy, with a low around 58. Wind around 0 mph.
0UV Low
-Air quality
79%Humidity
2%Cloud
Now
3:15 AM
59feels59
now, clear
Today
Sep 27
7757
overcast
Mon
Sep 28
7954
overcast
Tue
Sep 29
8957
overcast
Wed
Sep 30
9462
14mph
overcast
Thu
Oct 1
9570
36%
16mph
drizzle dense
Fri
Oct 2
7157
43%
13mph
drizzle light
Sat
Oct 3
6757
35%
rain light
59°
77°57°
79°54°
89°57°
94°62°
95°70°
71°57°
67°57°

As of 3:15 AM in Belknap, Illinois.

What is measuring near here

The 4 instruments nearest Belknap, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.7 miles away.

measured now2 instruments

Dixon Springs-RAWSDSFI2

A remote fire weather station/17.0 mi away/541 ft/170 ft above here

temp, wind, gust, humidity, pressure

Rank88of 417

CairoCIR

At an airfield/23.6 mi away/321 ft/50 ft below here

temp, wind, gust, visibility, precip, pressure

Rank286of 417

measured daily2 instruments

Karnak 2.4 WIL-PL-5

In a volunteer observer's own ground/4.7 mi away/374 ft/3 ft above here

precip, snowfall, snow depth

Rank-

Grand Chain Dam 53GCTI2

At a dam/10.1 mi away/384 ft/13 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Cairo, drawn

The nearest airport reporting now, 23.6 mi from Belknap. From its report of Sep 27, 2026, 3:15 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 Cairo, 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 CIRFIG. A THE SKY OVER CAIROSECTION, 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 MORE0510TITLECairo, the skySTATION REPORT · ASOS CIRTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-CIR-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

59.7 F with a dew point of 53.6 F, 80 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,400 ft up.

Chart of the air at Cairo: temperature 59.7 degrees Fahrenheit and dew point 53.6, 80 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,400 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CIRFIG. B THE AIR AT CAIROTHE 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 F70 FSATURATES 1,400 FT ABOVE THE STATION, AT 52.2 FTEMPERATURE 59.7 FDEW POINT 53.6 FSPREAD 6.1 FRELATIVE HUMIDITY 80 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 POINTTITLECairo, the airSTATION REPORT · ASOS CIRTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-CIR-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Cairo, 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 CIRFIG. C THE WIND AT CAIROPLAN, 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 FORCE73TITLECairo, the windSTATION REPORT · ASOS CIRTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-CIR-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-in

Snow on the ground

Elsewhere in Illinois

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

Near Belknap

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