Storm Station
Junction, Illinois
57° 76°/54°
Clear· Feels like 57°·Light air 3 mph NE
Mostly cloudy, with a low around 55. Northeast wind around 1 mph.
0UV Low
29Air quality
90%Humidity
7%Cloud
Now
3:15 AM
57feels57
now, clear
Today
Sep 27
7654
overcast
Mon
Sep 28
7849
overcast
Tue
Sep 29
8656
overcast
Wed
Sep 30
9362
13mph
overcast
Thu
Oct 1
9471
35%
15mph
drizzle
Fri
Oct 2
7157
44%
drizzle
Sat
Oct 3
6756
35%
rain light
57°
76°54°
78°49°
86°56°
93°62°
94°71°
71°57°
67°56°

As of 3:15 AM in Junction, Illinois.

What is measuring near here

The 4 instruments nearest Junction, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.6 miles away.

measured now2 instruments

HarrisburgHSB

At an airfield/18.1 mi away/397 ft/31 ft above here

temp, wind, gust, visibility, precip, pressure

Rank286of 417

Dixon Springs-RAWSDSFI2

A remote fire weather station/30.7 mi away/541 ft/175 ft above here

temp, wind, gust, humidity, pressure

Rank88of 417

measured daily2 instruments

Junction 1.7 SSEIL-GL-4

In a volunteer observer's own ground/1.6 mi away/403 ft/37 ft above here

precip, snowfall, snow depth

Rank-

Shawneetown 3WSWSWNI2

At a cooperative observer's station/1.6 mi away/397 ft/31 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Harrisburg, drawn

The nearest airport reporting now, 18.1 mi from Junction. From its report of Sep 27, 2026, 3:15 AM local time: 3 of its 6 sheets.

The sky

Scattered at 12,000 ft; visibility 10 mi or more.

Section of the sky over Harrisburg, height above the station to scale: scattered cloud with its base at 12,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HSBFIG. A THE SKY OVER HARRISBURGSECTION, 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 STATION02,5005,0007,50010,00012,50015,00017,50020,000ETAGESLOWMIDDLEHIGHTHE STATIONTHE CEILOMETER READS TO 12,000 FTSCT 12,000 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYVISIBILITY, MILES: 10 MI OR MORE0510TITLEHarrisburg, the skySTATION REPORT · ASOS HSBTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-HSB-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-013, FB-SKY-014

The air

57.4 F with a dew point of 53.8 F, 88 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 800 ft up; the lowest cloud reported is at 12,000 ft.

Chart of the air at Harrisburg: temperature 57.4 degrees Fahrenheit and dew point 53.8, 88 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 800 feet above the station, against the lowest cloud reported at 12,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HSBFIG. B THE AIR AT HARRISBURGTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00040 F50 F60 F70 FSATURATES 800 FT ABOVE THE STATION, AT 52.9 FABOVE THIS SHEET: LOWEST CLOUD REPORTED, SCT 12,000 FTTEMPERATURE 57.4 FDEW POINT 53.8 FSPREAD 3.6 FRELATIVE HUMIDITY 88 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 POINTTITLEHarrisburg, the airSTATION REPORT · ASOS HSBTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-HSB-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 Harrisburg, 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 HSBFIG. C THE WIND AT HARRISBURGPLAN, 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 FORCE73TITLEHarrisburg, the windSTATION REPORT · ASOS HSBTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-HSB-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Harrisburg, 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 Junction

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