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Foristell, Missouri

City in Warren County, Missouri

Air quality

The air at Foristell

Index 31, good, led by coarse particles. Read at 1 PM from its reporting area, Saint Louis (MO), 19 miles off.

31Good
  • Fine particles (PM2.5)13Good-
  • Ozone22Good18 ppb17.5 mi
  • Coarse particles (PM10)31Good-

The days ahead

Yesterday measured 40, good.

Smoke, the next 43 hours

No smoke near the ground through Sun 7 AM.

FriSatSun

Precipitation

What has fallen at Foristell

0.02 in in the last 24 hours, 2.40 in over the last 3 days, to Fri 12 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.02in
Last 3 days
2.40in

Visibility

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

Visibility stays 8 miles or more through Sun 7 AM, lowest 9 miles Fri 3 PM.

FriSatSun

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

What is measuring near here

The 6 instruments nearest Foristell, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.7 miles away.

measured now4 instruments

WashingtonFYG

At an airfield/15.6 mi away/480 ft/194 ft below here

temp, wind, gust, visibility, precip, pressure

Rank847of 1,014

measured daily2 instruments

Wright City 1.5 WMO-WR-11

In a volunteer observer's own ground/4.7 mi away/744 ft/70 ft above here

precip, snowfall, snow depth

Rank-

WarrentonWTNM7

At a cooperative observer's station/8.9 mi away/820 ft/146 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Washington, drawn

The nearest airport reporting now, 15.6 mi from Foristell, Missouri. From its report of Oct 16, 2026, 12:55 PM 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 Washington, 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 FYGFIG. A THE SKY OVER WASHINGTONSECTION, 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 MORE0510TITLEWashington, the skySTATION REPORT · ASOS FYGTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-FYG-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

57.2 F with a dew point of 44.6 F, 63 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,900 ft up.

Chart of the air at Washington: temperature 57.2 degrees Fahrenheit and dew point 44.6, 63 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,900 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FYGFIG. B THE AIR AT WASHINGTONTHE 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 F70 FSATURATES 2,900 FT ABOVE THE STATION, AT 41.8 FTEMPERATURE 57.2 FDEW POINT 44.6 FSPREAD 12.6 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 POINTTITLEWashington, the airSTATION REPORT · ASOS FYGTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-FYG-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west (280 degrees) at 21 mph: force 5, a fresh breeze on the Beaufort scale. The strongest gust today was 29 mph.

Plan of the wind at Washington, north up: blowing from 280 degrees, the west, at 21 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 5, fresh breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FYGFIG. C THE WIND AT WASHINGTONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 280°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE19NOW, 21 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEWashington, the windSTATION REPORT · ASOS FYGTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-FYG-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-

Snow on the ground

Elsewhere in Missouri

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

Near Foristell

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

Near Foristell

River and lake gauges