Storm Station
Mendon, Michigan
46° 71°/43°
Clear· Feels like 46°·Light air 3 mph NNE
Mostly clear, with a low around 43. Northeast wind around 0 mph.
0UV Low
-Air quality
91%Humidity
3%Cloud
Now
5:00 AM
46feels46
now, clear
Today
Sep 27
7143
clear day
Mon
Sep 28
7348
overcast
Tue
Sep 29
7553
overcast
Wed
Sep 30
7858
18%
12mph
overcast
Thu
Oct 1
7863
51%
17mph
showers
Fri
Oct 2
6349
37%
overcast
Sat
Oct 3
6542
21%
overcast
46°
71°43°
73°48°
75°53°
78°58°
78°63°
63°49°
65°42°

As of 5:00 AM in Mendon, Michigan.

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 2.0 miles away.

measured now3 instruments

MendonMUNM4

At a river or reservoir gauge/2.0 mi away/846 ft/level with here

temp, wind, gust, humidity, pressure

Rank247of 407

Three RiversHAI

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

temp, wind, gust, visibility, precip, pressure

Rank30of 407

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. From its report of Sep 27, 2026, 4:55 AM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 1.5 mi.

Section of the sky over Three Rivers, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 1.5 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 SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 1.5 MI0510TITLEThree Rivers, the skySTATION REPORT · ASOS HAITYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-HAI-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

44.6 F with a dew point of 41.0 F, 87 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 800 ft up.

Chart of the air at Three Rivers: temperature 44.6 degrees Fahrenheit and dew point 41.0, 87 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 800 feet above the station; 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 STATION01,0002,0003,00030 F40 F50 F60 FSATURATES 800 FT ABOVE THE STATION, AT 40.2 FTEMPERATURE 44.6 FDEW POINT 41.0 FSPREAD 3.6 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 POINTTITLEThree Rivers, the airSTATION REPORT · ASOS HAITYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-HAI-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (290 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Three Rivers, north up: blowing from 290 degrees, the west 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 HAIFIG. C THE WIND AT THREE RIVERSPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEThree Rivers, the windSTATION REPORT · ASOS HAITYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-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

-in

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.