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Island Lake, Illinois

Village in McHenry County, Illinois

Air quality

The air at Island Lake

Index 29, good, led by fine particles. Read at 10 PM from its reporting area, North and West Suburbs (Chicago) (IL), 6 miles off.

29Good
  • Fine particles (PM2.5)29Good-
  • Ozone16Good-
  • Coarse particles (PM10)8Good-

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 36, good.

Smoke, the next 46 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Island Lake

0.32 in in the last 24 hours, 0.48 in over the last 3 days, to Thu 9 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.32in
Last 3 days
0.48in

Visibility

How far you can see at Island Lake, the next 46 hours

Visibility stays 8 miles or more through Sat 7 PM, lowest 8 miles Thu 10 PM.

FriSat

On the radar over Island Lake, IllinoisReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Island Lake, 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 now4 instruments

PalwaukeePWK

At an airfield/18.7 mi away/666 ft/91 ft below here

temp, wind, gust, visibility, precip, pressure

Rank10of 1,393

measured daily2 instruments

Fox River AT MchenryMHYI2

At a cooperative observer's station/1.6 mi away/738 ft/19 ft below here

snowfall, snow depth, precip, high, low

Rank-

Holiday Hills 1.3 SSWIL-MCH-4

In a volunteer observer's own ground/1.7 mi away/794 ft/37 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Palwaukee, drawn

The nearest airport reporting now, 18.7 mi from Island Lake, Illinois. From its report of Oct 15, 2026, 10:26 PM local time: 3 of its 6 sheets.

The sky

Overcast at 1,400 ft; the ceiling is 1,400 ft; visibility 10 mi or more.

Section of the sky over Palwaukee, height above the station to scale: overcast cloud with its base at 1,400 feet, the ceiling at 1,400 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PWKFIG. A THE SKY OVER PALWAUKEESECTION, 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 SHEETOVC 1,400 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 1,400 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEPalwaukee, the skySTATION REPORT · ASOS PWKTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-PWK-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

62.0 F with a dew point of 58.0 F, 87 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 900 ft up; the lowest cloud reported is at 1,400 ft.

Chart of the air at Palwaukee: temperature 62.0 degrees Fahrenheit and dew point 58.0, 87 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 900 feet above the station, against the lowest cloud reported at 1,400 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PWKFIG. B THE AIR AT PALWAUKEETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00050 F60 F70 FSATURATES 900 FT ABOVE THE STATION, AT 57.0 FLOWEST CLOUD REPORTED, OVC 1,400 FTTEMPERATURE 62.0 FDEW POINT 58.0 FSPREAD 4.0 FRELATIVE HUMIDITY 87 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 POINTTITLEPalwaukee, the airSTATION REPORT · ASOS PWKTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-PWK-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (300 degrees) at 13 mph, gusting 29 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 31 mph.

Plan of the wind at Palwaukee, north up: blowing from 300 degrees, the west northwest, at 13 miles an hour, gusting 29; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PWKFIG. C THE WIND AT PALWAUKEEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 300°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 13 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 29 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEPalwaukee, the windSTATION REPORT · ASOS PWKTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-PWK-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-

Snow on the ground

Elsewhere in Illinois

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

Near Island Lake

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

Near Island Lake

River and lake gauges