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Iron Mountain Lake, Missouri

City in St. Francois County, Missouri

Air quality

The air at Iron Mountain Lake

Index 19, good, led by ozone. Read at 2 PM from its reporting area, Bonne Terre (MO), 18 miles off.

19Good
  • Ozone19Good22 ppb18.1 mi

The days ahead

Yesterday measured 23, good.

Smoke, the next 41 hours

No smoke near the ground through Sun 7 AM.

FriSatSun

Precipitation

What has fallen at Iron Mountain Lake

0.28 in in the last 24 hours, 1.20 in over the last 3 days, to Fri 1 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.28in
Last 3 days
1.20in

Visibility

How far you can see at Iron Mountain Lake, the next 41 hours

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

FriSatSun

On the radar over Iron Mountain Lake, MissouriReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Iron Mountain Lake, 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 now3 instruments

FarmingtonFAM

At an airfield/11.8 mi away/945 ft/139 ft below here

temp, wind, gust, visibility, precip, pressure

Rank-

Farmington RAWSFMRM7

A remote fire weather station/11.8 mi away/915 ft/169 ft below here

temp, wind, gust, humidity, pressure

Rank-

Sinkin ForestS2231

At a soil climate station/37.1 mi away/1,350 ft/266 ft above here

temp, humidity, soil temp, soil moisture

Rank-

measured daily2 instruments

Bismarck 1.3 SMO-SF-7

In a volunteer observer's own ground/4.2 mi away/1,013 ft/71 ft below here

precip, snowfall, snow depth

Rank-

FredericktownFRDM7

At a cooperative observer's station/19.6 mi away/768 ft/316 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Farmington RAWS, drawn

The nearest instrument reporting now, 11.8 mi from Iron Mountain Lake, Missouri. From its report of Oct 16, 2026, 2:00 PM local time: 3 of its 5 sheets.

The air

56.0 F with a dew point of 38.1 F, 51 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 4,100 ft up.

Chart of the air at Farmington RAWS: temperature 56.0 degrees Fahrenheit and dew point 38.1, 51 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 4,100 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FMRM7FIG. B THE AIR AT FARMINGTON RAWSTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00020 F30 F40 F50 F60 F70 FSATURATES 4,100 FT ABOVE THE STATION, AT 34.3 FTEMPERATURE 56.0 FDEW POINT 38.1 FSPREAD 17.9 FRELATIVE HUMIDITY 51 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 POINTTITLEFarmington RAWS, the airSTATION REPORT · DCP FMRM7TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-16IDSR-FMRM7-1DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (318 degrees) at 11 mph, gusting 24 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 29 mph.

Plan of the wind at Farmington RAWS, north up: blowing from 318 degrees, the northwest, at 11 miles an hour, gusting 24; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FMRM7FIG. C THE WIND AT FARMINGTON RAWSPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 318°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 11 MPH4MODERATE BREEZE135FRESH BREEZE19GUST, 24 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEFarmington RAWS, the windSTATION REPORT · DCP FMRM7TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-16IDSR-FMRM7-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 915 ft above sea level, 3 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 28.95 inHg and the temperature at 55.7 F; it reports 56.0 F, 0.3 F warmer than standard.

Section from sea level of where Farmington RAWS stands in the atmosphere, height to scale: the station 915 feet above sea level with 3 per cent of the air below it; the standard atmosphere's pressure there, 28.95 inches of mercury, and temperature, 55.7 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FMRM7FIG. D WHERE FARMINGTON RAWS 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 ATMOSPHEREFARMINGTON RAWS3 PER CENT OF THE AIR BELOW IT915 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 HERE28.95 inHgSTANDARD TEMPERATURE HERE55.7 FTEMPERATURE, REPORTED56.0 FTITLEFarmington RAWS, the columnSTATION REPORT · DCP FMRM7TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-16IDSR-FMRM7-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Farmington RAWS, in 5 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 Iron Mountain Lake

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

Near Iron Mountain Lake

River and lake gauges