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Mendon, Michigan

Village in St. Joseph County, Michigan

Air quality

The air at Mendon

Index 34, good, led by fine particles. Read at 11 PM from its reporting area, Kalamazoo (MI), 11 miles off.

34Good
  • Fine particles (PM2.5)34Good19.1 mi
  • Ozone15Good9 ppb19.1 mi

The days ahead

Good each day through Today, led by ozone. Yesterday measured 41, good.

Smoke, the next 45 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Mendon

None in the last 24 hours; 0.47 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.47in

Visibility

How far you can see at Mendon, the next 45 hours

Visibility stays 7 miles or more through Sat 8 PM, lowest 8 miles Fri 12 AM.

FriSat

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

What is measuring near here

The 5 instruments nearest Mendon, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 6.8 miles away.

measured now3 instruments

Three RiversHAI

At an airfield/8.0 mi away/823 ft/23 ft below here

temp, wind, gust, visibility, precip, pressure

Rank12of 979

MI-05 ConstantineMC075

Beside a road/17.1 mi away/810 ft/36 ft below here

temp, pavement temp, wind, visibility, precip

Rank-

measured daily2 instruments

Colon 0.8 WMI-SJ-8

In a volunteer observer's own ground/6.8 mi away/864 ft/18 ft above here

precip, snowfall, snow depth

Rank-

Three RiversTRVM4

At a cooperative observer's station/10.6 mi away/801 ft/45 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Three Rivers, drawn

The nearest airport reporting now, 8.0 mi from Mendon, Michigan. From its report of Oct 15, 2026, 11:35 PM local time: 3 of its 6 sheets.

The sky

Overcast at 500 ft; the ceiling is 500 ft; visibility 6 mi.

Section of the sky over Three Rivers, height above the station to scale: overcast cloud with its base at 500 feet, the ceiling at 500 feet, and visibility of 6 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HAIFIG. A THE SKY OVER THREE RIVERSSECTION, 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 500 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 500 FTVISIBILITY, MILES: 6 MI0510TITLEThree Rivers, the skySTATION REPORT · ASOS HAITYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-HAI-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

68.0 F with a dew point of 64.4 F, 88 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 500 ft.

Chart of the air at Three Rivers: temperature 68.0 degrees Fahrenheit and dew point 64.4, 88 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 500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HAIFIG. B THE AIR AT THREE RIVERSTHE 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 900 FT ABOVE THE STATION, AT 63.5 FLOWEST CLOUD REPORTED, OVC 500 FTTEMPERATURE 68.0 FDEW POINT 64.4 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 POINTTITLEThree Rivers, the airSTATION REPORT · ASOS HAITYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-HAI-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the southwest (230 degrees) at 9 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 20 mph.

Plan of the wind at Three Rivers, north up: blowing from 230 degrees, the southwest, at 9 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HAIFIG. C THE WIND AT THREE RIVERSPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 230°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEThree Rivers, the windSTATION REPORT · ASOS HAITYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-HAI-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Michigan

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

Near Mendon

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

Near Mendon

River and lake gauges