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Grass Lake, Michigan

Village in Jackson County, Michigan

Air quality

The air at Grass Lake

Index 28, good, led by fine particles. Read at 12 AM from its reporting area, Jackson (MI), 18 miles off.

28Good
  • Fine particles (PM2.5)28Good22.2 mi
  • Ozone17Good14 ppb22.2 mi
  • Coarse particles (PM10)8Good-

The days ahead

Good each day through Today, led by ozone. Yesterday measured 35, good.

Smoke, the next 44 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Grass Lake

0.06 in in the last 24 hours, 0.26 in over the last 3 days, to Fri 12 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.06in
Last 3 days
0.26in

Visibility

How far you can see at Grass Lake, the next 44 hours

Visibility stays 7 miles or more through Sat 8 PM, lowest 8 miles Fri 1 AM.

FriSat

On the radar over Grass Lake, MichiganReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Grass Lake, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.2 miles away.

measured now4 instruments

Adrian [CCOOP]ARNM4

At a river or reservoir gauge/25.0 mi away/738 ft/282 ft below here

temp, wind, gust, humidity, pressure

Rank-

I96Mm1529MC208

Beside a road/33.6 mi away/899 ft/121 ft below here

temp, pavement temp, wind, visibility, precip

Rank-

measured daily2 instruments

Grass Lake 1.1 NNWMI-JC-12

In a volunteer observer's own ground/1.2 mi away/965 ft/55 ft below here

precip, snowfall, snow depth

Rank-

ChelseaCHLM4

At a cooperative observer's station/10.7 mi away/932 ft/88 ft below here

snowfall, snow depth, precip, high, low

Rank556of 979

Station report

The weather at Jackson/Reynolds, drawn

The nearest airport reporting now, 13.0 mi from Grass Lake, Michigan. From its report of Oct 16, 2026, 12:56 AM local time: 3 of its 6 sheets.

The sky

Overcast at 800 ft; the ceiling is 800 ft; visibility 7 mi.

Section of the sky over Jackson/Reynolds, height above the station to scale: overcast cloud with its base at 800 feet, the ceiling at 800 feet, and visibility of 7 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JXNFIG. A THE SKY OVER JACKSON/REYNOLDSSECTION, 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 800 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 800 FTVISIBILITY, MILES: 7 MI0510TITLEJackson/Reynolds, the skySTATION REPORT · ASOS JXNTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-JXN-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

66.0 F with a dew point of 65.0 F, 97 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 200 ft up; the lowest cloud reported is at 800 ft.

Chart of the air at Jackson/Reynolds: temperature 66.0 degrees Fahrenheit and dew point 65.0, 97 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 200 feet above the station, against the lowest cloud reported at 800 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JXNFIG. B THE AIR AT JACKSON/REYNOLDSTHE 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 F80 FSATURATES 200 FT ABOVE THE STATION, AT 64.8 FLOWEST CLOUD REPORTED, OVC 800 FTTEMPERATURE AND DEW POINT 66.0 F, 65.0 FRELATIVE HUMIDITY 97 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 POINTTITLEJackson/Reynolds, the airSTATION REPORT · ASOS JXNTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-JXN-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south southwest (200 degrees) at 16 mph, gusting 25 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 25 mph.

Plan of the wind at Jackson/Reynolds, north up: blowing from 200 degrees, the south southwest, at 16 miles an hour, gusting 25; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JXNFIG. C THE WIND AT JACKSON/REYNOLDSPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 200°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 16 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 25 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEJackson/Reynolds, the windSTATION REPORT · ASOS JXNTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-JXN-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Chelsea (CHLM4), 10.7 miles from here, read 14 Oct, 09:30. measured daily

Elsewhere in Michigan

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

Near Grass Lake

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

Near Grass Lake

River and lake gauges