Storm Station
Lyons, Illinois
51° 67°/48°
Mostly clear· Feels like 51°·Light air 2 mph NNE
Partly cloudy, with a low around 52. Northeast wind around 0 mph.
0UV Low
51Air quality
89%Humidity
20%Cloud
Now
3:15 AM
51feels51
now, mostly clear
Today
Sep 27
6748
overcast
Mon
Sep 28
7050
fog
Tue
Sep 29
7858
fog
Wed
Sep 30
8267
41%
overcast
Thu
Oct 1
7662
62%
rain light
Fri
Oct 2
6356
39%
overcast
Sat
Oct 3
7053
25%
overcast
51°
67°48°
70°50°
78°58°
82°67°
76°62°
63°56°
70°53°

As of 3:15 AM in Lyons, Illinois.

What is measuring near here

The 5 instruments nearest Lyons, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.3 miles away.

measured now3 instruments

WestchesterWBRI2

At a river or reservoir gauge/3.8 mi away/651 ft/30 ft above here

temp, wind, gust, humidity, pressure

Rank361of 417

ChicagoMDW

At an airfield/4.1 mi away/617 ft/4 ft below here

temp, wind, gust, visibility, precip, pressure

Rank8of 417

Rakow @ Pyott RdIMC03

Beside a road/37.6 mi away/895 ft/274 ft above here

temp, pavement temp, wind, visibility, precip

Rank410of 417

measured daily2 instruments

Berwyn 1.5 SSWIL-CK-410

In a volunteer observer's own ground/1.3 mi away/611 ft/10 ft below here

precip, snowfall, snow depth

Rank-

Chicago Midway AP 3SWMDWI2

At a cooperative observer's station/5.7 mi away/617 ft/4 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Chicago, drawn

The nearest airport reporting now, 4.1 mi from Lyons. From its report of Sep 27, 2026, 2:53 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 25,000 ft; visibility 10 mi or more.

Section of the sky over Chicago, height above the station to scale: a few clouds cloud with its base at 25,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MDWFIG. A THE SKY OVER CHICAGOSECTION, 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 STATION05,00010,00015,00020,00025,00030,00035,00040,000ETAGESLOWMIDDLEHIGHTHE STATIONTHE CEILOMETER READS TO 12,000 FTFEW 25,000 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYVISIBILITY, MILES: 10 MI OR MORE0510TITLEChicago, the skySTATION REPORT · ASOS MDWTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-MDW-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-010, FB-SKY-011, FB-SKY-012

The air

53.0 F with a dew point of 51.0 F, 93 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 500 ft up; the lowest cloud reported is at 25,000 ft.

Chart of the air at Chicago: temperature 53.0 degrees Fahrenheit and dew point 51.0, 93 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 500 feet above the station, against the lowest cloud reported at 25,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MDWFIG. B THE AIR AT CHICAGOTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00040 F50 F60 FSATURATES 500 FT ABOVE THE STATION, AT 50.5 FABOVE THIS SHEET: LOWEST CLOUD REPORTED, FEW 25,000 FTTEMPERATURE AND DEW POINT 53.0 F, 51.0 FRELATIVE HUMIDITY 93 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 POINTTITLEChicago, the airSTATION REPORT · ASOS MDWTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-MDW-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (330 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Chicago, north up: blowing from 330 degrees, the north northwest, at 3 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MDWFIG. C THE WIND AT CHICAGOPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 330°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEChicago, the windSTATION REPORT · ASOS MDWTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-MDW-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Chicago Midway AP 3SW (MDWI2), 5.7 miles from here, read 26 Sep, 23:58. measured daily

Elsewhere in Illinois

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

Near Lyons

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