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Bel-Nor, Missouri

Village in St. Louis County, Missouri

Air quality

The air at Bel-Nor

Index 25, good, led by ozone. Read at 10 PM from its reporting area, St. Louis (Metro-east) (IL), 21 miles off.

25Good
  • Fine particles (PM2.5)18Good7.2 mi
  • Ozone25Good29 ppb7.2 mi
  • Coarse particles (PM10)7Good7.2 mi
  • Nitrogen dioxide5Good5.5 ppb5.2 mi
  • Sulfur dioxide0Good0.8 ppb7.2 mi
  • Carbon monoxide-0.2 ppm5.2 mi

The days ahead

Highest moderate, today, led by fine particles. Yesterday measured 39, good.

Smoke, the next 46 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Bel-Nor

0.64 in in the last 24 hours, 1.05 in over the last 3 days, to Thu 9 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.64in
Last 3 days
1.05in

Visibility

How far you can see at Bel-Nor, the next 46 hours

Visibility stays 9 miles or more through Sat 7 PM, lowest 9 miles Thu 10 PM.

FriSat

On the radar over Bel-Nor, MissouriReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Bel-Nor, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.5 miles away.

measured now4 instruments

St. LouisSTL

At an airfield/4.5 mi away/561 ft/83 ft below here

temp, wind, gust, visibility, precip, pressure

Rank810of 1,014

measured daily2 instruments

Normandy 0.6 SWMO-SL-120

In a volunteer observer's own ground/0.5 mi away/632 ft/12 ft below here

precip, snowfall, snow depth

Rank-

Science CenterSSCM7

At a cooperative observer's station/8.0 mi away/486 ft/158 ft below here

snowfall, snow depth, precip, high, low

Rank796of 1,014

Station report

The weather at St. Louis, drawn

The nearest airport reporting now, 4.5 mi from Bel-Nor, Missouri. From its report of Oct 15, 2026, 10:18 PM local time: 3 of its 6 sheets.

The sky

Broken at 900 ft, broken at 1,300 ft, overcast at 2,700 ft; the ceiling is 900 ft; visibility 9 mi.

Section of the sky over St. Louis, height above the station to scale: broken cloud with its base at 900 feet, broken cloud with its base at 1,300 feet, overcast cloud with its base at 2,700 feet, the ceiling at 900 feet, and visibility of 9 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT STLFIG. A THE SKY OVER ST. LOUISSECTION, 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 STATION01,0002,0003,0004,0005,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 2,700 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 1,300 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYBKN 900 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 900 FTVISIBILITY, MILES: 9 MI0510TITLESt. Louis, the skySTATION REPORT · ASOS STLTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-STL-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

67.0 F with a dew point of 64.0 F, 90 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 700 ft up; the lowest cloud reported is at 900 ft.

Chart of the air at St. Louis: temperature 67.0 degrees Fahrenheit and dew point 64.0, 90 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 700 feet above the station, against the lowest cloud reported at 900 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT STLFIG. B THE AIR AT ST. LOUISTHE 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 F80 FSATURATES 700 FT ABOVE THE STATION, AT 63.3 FLOWEST CLOUD REPORTED, BKN 900 FTTEMPERATURE 67.0 FDEW POINT 64.0 FSPREAD 3.0 FRELATIVE HUMIDITY 90 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 POINTTITLESt. Louis, the airSTATION REPORT · ASOS STLTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-STL-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (300 degrees) at 17 mph, gusting 28 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 43 mph.

Plan of the wind at St. Louis, north up: blowing from 300 degrees, the west northwest, at 17 miles an hour, gusting 28; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT STLFIG. C THE WIND AT ST. LOUISPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 300°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 17 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 28 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESt. Louis, the windSTATION REPORT · ASOS STLTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-STL-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of St. Louis, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Science Center (SSCM7), 8.0 miles from here, read 14 Oct, 16:00. measured daily

Elsewhere in Missouri

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

Near Bel-Nor

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

Near Bel-Nor

River and lake gauges