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Trenton, Missouri

City in Grundy County, Missouri

Air quality

The air at Trenton

Index 18, good, led by ozone. Read at 12 AM from its reporting area, St. Joseph (MO), 66 miles off.

18Good
  • Fine particles (PM2.5)10Good-
  • Ozone18Good-
  • Coarse particles (PM10)9Good-

The days ahead

Yesterday measured 48, good.

Smoke, the next 43 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Trenton

0.02 in in the last 24 hours, 0.30 in over the last 3 days, to Fri 12 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.02in
Last 3 days
0.30in

Visibility

How far you can see at Trenton, the next 43 hours

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

FriSat

On the radar over Trenton, MissouriReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Trenton, 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 now5 instruments

SpickardS2047

At a soil climate station/11.6 mi away/912 ft/89 ft above here

temp, humidity, soil temp, soil moisture

Rank713of 1,014

measured daily2 instruments

TrentonTTNM7

At a cooperative observer's station/1.2 mi away/804 ft/19 ft below here

snowfall, snow depth, precip, high, low

Rank69of 1,014

Station report

The weather at Chillicothe, drawn

The nearest airport reporting now, 17.7 mi from Trenton, Missouri. From its report of Oct 16, 2026, 12:51 AM local time: 3 of its 5 sheets.

The air

51.0 F with a dew point of 39.0 F, 63 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,700 ft up.

Chart of the air at Chillicothe: temperature 51.0 degrees Fahrenheit and dew point 39.0, 63 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CDJFIG. B THE AIR AT CHILLICOTHETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00030 F40 F50 F60 FSATURATES 2,700 FT ABOVE THE STATION, AT 36.3 FTEMPERATURE 51.0 FDEW POINT 39.0 FSPREAD 12.0 FRELATIVE HUMIDITY 63 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 POINTTITLEChillicothe, the airSTATION REPORT · ASOS CDJTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-16IDSR-CDJ-1DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (310 degrees) at 12 mph, gusting 21 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 21 mph.

Plan of the wind at Chillicothe, north up: blowing from 310 degrees, the northwest, at 12 miles an hour, gusting 21; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CDJFIG. C THE WIND AT CHILLICOTHEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 310°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 12 MPH4MODERATE BREEZE135FRESH BREEZE19GUST, 21 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEChillicothe, the windSTATION REPORT · ASOS CDJTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-16IDSR-CDJ-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The column

At 768 ft above sea level, 3 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.10 inHg and the temperature at 56.3 F; the station's altimeter setting of 30.24 inHg means its barometer reads 29.41 inHg; it reports 51.0 F, 5.3 F colder than standard.

Section from sea level of where Chillicothe stands in the atmosphere, height to scale: the station 768 feet above sea level with 3 per cent of the air below it; the standard atmosphere's pressure there, 29.10 inches of mercury, and temperature, 56.3 degrees Fahrenheit; the altimeter setting of 30.24 and the station pressure it means, 29.41.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CDJFIG. D WHERE CHILLICOTHE STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHERECHILLICOTHE3 PER CENT OF THE AIR BELOW IT768 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE29.10 inHgSTANDARD TEMPERATURE HERE56.3 FALTIMETER SETTING, REPORTED30.24 inHgITS BAROMETER READS29.41 inHgTEMPERATURE, REPORTED51.0 FTITLEChillicothe, the columnSTATION REPORT · ASOS CDJTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-16IDSR-CDJ-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Chillicothe, in 5 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Trenton (TTNM7), 1.2 miles from here, read 15 Oct, 06:00. measured daily

Elsewhere in Missouri

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

Near Trenton

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

Near Trenton

River and lake gauges