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Forest Lake, Illinois

Community in Lake County, Illinois

Air quality

The air at Forest Lake

Index 19, good, led by ozone. Read at 5 AM from its reporting area, Lake County (IL), 9 miles off.

19Good
  • Fine particles (PM2.5)5Good-
  • Ozone19Good-

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 21, good.

Smoke, the next 45 hours

No smoke near the ground through Sun 1 AM.

FriSat

Precipitation

What has fallen at Forest Lake

0.42 in in the last 24 hours, 0.91 in over the last 3 days, to Fri 4 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.42in
Last 3 days
0.91in

Visibility

How far you can see at Forest Lake, the next 45 hours

Visibility stays 8 miles or more through Sun 1 AM, lowest 8 miles Fri 10 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Forest Lake, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.4 miles away.

measured now4 instruments

PalwaukeePWK

At an airfield/9.7 mi away/666 ft/135 ft below here

temp, wind, gust, visibility, precip, pressure

Rank10of 1,393

measured daily2 instruments

Lake Zurich 1.0 EIL-LK-77

In a volunteer observer's own ground/1.4 mi away/834 ft/33 ft above here

precip, snowfall, snow depth

Rank-

Lake Zurich (Hydro)LKZI2

At a cooperative observer's station/1.4 mi away/807 ft/6 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Palwaukee, drawn

The nearest airport reporting now, 9.7 mi from Forest Lake, Illinois. From its report of Oct 16, 2026, 5:01 AM local time: 3 of its 6 sheets.

The sky

Scattered at 2,600 ft, broken at 3,000 ft, overcast at 4,600 ft; the ceiling is 3,000 ft; visibility 10 mi or more.

Section of the sky over Palwaukee, height above the station to scale: scattered cloud with its base at 2,600 feet, broken cloud with its base at 3,000 feet, overcast cloud with its base at 4,600 feet, the ceiling at 3,000 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 STATION01,0002,0003,0004,0005,0006,0007,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 4,600 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 3,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYSCT 2,600 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 3,000 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

53.0 F with a dew point of 46.0 F, 77 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,600 ft up; the lowest cloud reported is at 2,600 ft.

Chart of the air at Palwaukee: temperature 53.0 degrees Fahrenheit and dew point 46.0, 77 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,600 feet above the station, against the lowest cloud reported at 2,600 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 STATION01,0002,0003,0004,00030 F40 F50 F60 FSATURATES 1,600 FT ABOVE THE STATION, AT 44.4 FLOWEST CLOUD REPORTED, SCT 2,600 FTTEMPERATURE 53.0 FDEW POINT 46.0 FSPREAD 7.0 FRELATIVE HUMIDITY 77 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-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (300 degrees) at 13 mph, gusting 21 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 36 mph.

Plan of the wind at Palwaukee, north up: blowing from 300 degrees, the west northwest, at 13 miles an hour, gusting 21; 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 BREEZE19GUST, 21 MPH6STRONG BREEZE257NEAR 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

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Snow on the ground

Elsewhere in Illinois

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

Near Forest Lake

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

Near Forest Lake

River and lake gauges