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St. Martins, Missouri

City in Cole County, Missouri

Air quality

The air at St. Martins

Index 10, good, led by ozone. Read at 6 AM from its reporting area, Jefferson City (MO), 15 miles off.

10Good
  • Ozone10Good10 ppb14.7 mi

The days ahead

Yesterday measured 17, good.

Smoke, the next 44 hours

No smoke near the ground through Mon 1 AM.

SatSun

Precipitation

What has fallen at St. Martins

None in the last 24 hours; 0.55 in over the last 3 days, to Sat 5 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.55in

Visibility

How far you can see at St. Martins, the next 44 hours

Visibility stays 9 miles or more through Mon 1 AM, lowest 9 miles Sat 7 AM.

SatSun

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

What is measuring near here

The 6 instruments nearest St. Martins, 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 now4 instruments

Busby FarmS2224

At a soil climate station/8.2 mi away/609 ft/99 ft below here

temp, humidity, soil temp, soil moisture

Rank764of 1,043

measured daily2 instruments

Water PlantJWPM7

At a cooperative observer's station/10.0 mi away/558 ft/150 ft below here

snowfall, snow depth, precip, high, low

Rank66of 1,043

Station report

The weather at Jefferson City, drawn

The nearest airport reporting now, 9.6 mi from St. Martins, Missouri. From its report of Oct 17, 2026, 5:53 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 Jefferson City, 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 JEFFIG. A THE SKY OVER JEFFERSON CITYSECTION, 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 MORE0510TITLEJefferson City, the skySTATION REPORT · ASOS JEFTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-JEF-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

41.0 F with a dew point of 37.0 F, 86 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 900 ft up.

Chart of the air at Jefferson City: temperature 41.0 degrees Fahrenheit and dew point 37.0, 86 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; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JEFFIG. B THE AIR AT JEFFERSON CITYTHE 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 FSATURATES 900 FT ABOVE THE STATION, AT 36.1 FTEMPERATURE 41.0 FDEW POINT 37.0 FSPREAD 4.0 FRELATIVE HUMIDITY 86 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 POINTTITLEJefferson City, the airSTATION REPORT · ASOS JEFTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-JEF-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (320 degrees) at 5 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Jefferson City, north up: blowing from 320 degrees, the northwest, at 5 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JEFFIG. C THE WIND AT JEFFERSON CITYPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 320°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEJefferson City, the windSTATION REPORT · ASOS JEFTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-JEF-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Missouri

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

Near St. Martins

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

Near St. Martins

River and lake gauges