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St. Marys, Kansas

City in Pottawatomie County, Kansas

Air quality

The air at St. Marys

Index 16, good, led by fine particles. Read at 1 AM from its reporting area, Topeka (KS), 23 miles off.

16Good
  • Fine particles (PM2.5)16Good-
  • Ozone16Good-
  • Coarse particles (PM10)7Good-

The days ahead

Yesterday measured 29, good.

Smoke, the next 43 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at St. Marys

None in the last 24 hours; 0.15 in over the last 3 days, to Fri 12 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.15in

Visibility

How far you can see at St. Marys, the next 43 hours

Visibility stays 8 miles or more through Sat 7 PM, lowest 8 miles Sat 9 AM.

FriSat

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

What is measuring near here

The 8 instruments nearest St. Marys, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.2 miles away.

measured now6 instruments

US-75 @ Kansas R. TopekaK5TPK

Beside a road/20.0 mi away/900 ft/99 ft below here

temp, pavement temp, wind, visibility, precip

Rank-

measured daily2 instruments

RossvilleRVEK1

At a cooperative observer's station/7.8 mi away/935 ft/64 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Topeka (Top), drawn

The nearest airport reporting now, 25.6 mi from St. Marys, Kansas. From its report of Oct 16, 2026, 12:53 AM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Topeka (Top), height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT TOPFIG. A THE SKY OVER TOPEKA (TOP)SECTION, 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: 10 MI OR MORE0510TITLETopeka (Top), the skySTATION REPORT · ASOS TOPTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-TOP-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

51.0 F with a dew point of 35.0 F, 54 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 3,600 ft up.

Chart of the air at Topeka (Top): temperature 51.0 degrees Fahrenheit and dew point 35.0, 54 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 3,600 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT TOPFIG. B THE AIR AT TOPEKA (TOP)THE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00020 F30 F40 F50 F60 FSATURATES 3,600 FT ABOVE THE STATION, AT 31.5 FTEMPERATURE 51.0 FDEW POINT 35.0 FSPREAD 16.0 FRELATIVE HUMIDITY 54 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 POINTTITLETopeka (Top), the airSTATION REPORT · ASOS TOPTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-TOP-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (330 degrees) at 17 mph, gusting 36 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 36 mph.

Plan of the wind at Topeka (Top), north up: blowing from 330 degrees, the north northwest, at 17 miles an hour, gusting 36; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT TOPFIG. C THE WIND AT TOPEKA (TOP)PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 330°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 17 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE32GUST, 36 MPH8GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLETopeka (Top), the windSTATION REPORT · ASOS TOPTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-TOP-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Topeka (Top), in 6 sheets, each beside the Field Book plates that explain it

-

Snow on the ground

Elsewhere in Kansas

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

Near St. Marys

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

Near St. Marys

River and lake gauges