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St. Johns, Michigan

City in Clinton County, Michigan

Air quality

The air at St. Johns

Index 36, good, led by fine particles. Read at 2 AM from its reporting area, Lansing (MI), 18 miles off.

36Good
  • Fine particles (PM2.5)36Good16.5 mi
  • Ozone17Good11 ppb16.5 mi
  • Coarse particles (PM10)9Good16.5 mi
  • Nitrogen dioxide4Good4.2 ppb16.5 mi

The days ahead

Good each day through Today, led by ozone. Yesterday measured 22, good.

Smoke, the next 42 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at St. Johns

0.33 in in the last 24 hours, 0.37 in over the last 3 days, to Fri 2 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.33in
Last 3 days
0.37in

Visibility

How far you can see at St. Johns, the next 42 hours

Visibility stays 5 miles or more through Sat 8 PM, lowest 6 miles Fri 8 AM.

FriSat

On the radar over St. Johns, MichiganReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest St. Johns, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.7 miles away.

measured now4 instruments

LansingLAN

At an airfield/15.2 mi away/866 ft/76 ft above here

temp, wind, gust, visibility, precip, pressure

Rank16of 979

I96Mm0760MC149

Beside a road/20.5 mi away/761 ft/29 ft below here

temp, pavement temp, wind, visibility, precip

Rank-

Alma [CCOOP]ALMM4

At a river or reservoir gauge/27.1 mi away/768 ft/22 ft below here

temp, wind, gust, humidity, pressure

Rank220of 979

measured daily2 instruments

St. Johns 0.7 SMI-CT-6

In a volunteer observer's own ground/0.7 mi away/774 ft/16 ft below here

precip, snowfall, snow depth

Rank-

Saint JohnsSTJM4

At a cooperative observer's station/1.2 mi away/735 ft/55 ft below here

snowfall, snow depth, precip, high, low

Rank88of 979

Station report

The weather at Lansing, drawn

The nearest airport reporting now, 15.2 mi from St. Johns, Michigan. From its report of Oct 16, 2026, 2:53 AM local time: 3 of its 6 sheets.

The sky

Broken at 1,400 ft, overcast at 1,900 ft; the ceiling is 1,400 ft; visibility 10 mi or more.

Section of the sky over Lansing, height above the station to scale: broken cloud with its base at 1,400 feet, overcast cloud with its base at 1,900 feet, the ceiling at 1,400 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LANFIG. A THE SKY OVER LANSINGSECTION, 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 1,900 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 1,400 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 1,400 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLELansing, the skySTATION REPORT · ASOS LANTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-LAN-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

64.0 F with a dew point of 60.0 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 Lansing: temperature 64.0 degrees Fahrenheit and dew point 60.0, 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 LANFIG. B THE AIR AT LANSINGTHE 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 59.0 FLOWEST CLOUD REPORTED, BKN 1,400 FTTEMPERATURE 64.0 FDEW POINT 60.0 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 POINTTITLELansing, the airSTATION REPORT · ASOS LANTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-LAN-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west southwest (250 degrees) at 23 mph, gusting 35 mph: force 5, a fresh breeze on the Beaufort scale. The strongest gust today was 39 mph.

Plan of the wind at Lansing, north up: blowing from 250 degrees, the west southwest, at 23 miles an hour, gusting 35; beside it the Beaufort scale from calm to hurricane force, force 5, fresh breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LANFIG. C THE WIND AT LANSINGPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 250°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE19NOW, 23 MPH6STRONG BREEZE257NEAR GALE32GUST, 35 MPH8GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLELansing, the windSTATION REPORT · ASOS LANTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-LAN-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Lansing, 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 St. Johns

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

Near St. Johns

River and lake gauges