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Crystal Lake Park, Missouri

City in St. Louis County, Missouri

Air quality

The air at Crystal Lake Park

Index 15, good, led by fine particles. Read at 4 AM from its reporting area, Saint Louis (MO), 15 miles off.

15Good
  • Fine particles (PM2.5)15Good8.1 mi
  • Ozone-17 ppb6.8 mi
  • Coarse particles (PM10)7Good12 mi
  • Nitrogen dioxide2Good2.6 ppb8.1 mi
  • Sulfur dioxide0Good0.3 ppb9.2 mi
  • Carbon monoxide-0.1 ppm8.1 mi

The days ahead

Yesterday measured 40, good.

Smoke, the next 45 hours

No smoke near the ground through Sun 1 AM.

FriSat

Precipitation

What has fallen at Crystal Lake Park

0.63 in in the last 24 hours, 1.25 in over the last 3 days, to Fri 3 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.63in
Last 3 days
1.25in

Visibility

How far you can see at Crystal Lake Park, the next 45 hours

Visibility stays 8 miles or more through Sun 1 AM, lowest 9 miles Fri 2 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Crystal Lake Park, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.8 miles away.

measured now4 instruments

St. LouisSTL

At an airfield/9.6 mi away/561 ft/34 ft below here

temp, wind, gust, visibility, precip, pressure

Rank810of 1,014

measured daily2 instruments

Kirkwood 1NNWKWDM7

At a cooperative observer's station/1.8 mi away/661 ft/66 ft above here

snowfall, snow depth, precip, high, low

Rank-

Kirkwood 1.3 NEMO-CN-5

In a volunteer observer's own ground/2.2 mi away/646 ft/51 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at St. Louis, drawn

The nearest airport reporting now, 9.6 mi from Crystal Lake Park, Missouri. From its report of Oct 16, 2026, 4:51 AM local time: 3 of its 6 sheets.

The sky

Broken at 2,100 ft, overcast at 2,700 ft; the ceiling is 2,100 ft; visibility 10 mi or more.

Section of the sky over St. Louis, height above the station to scale: broken cloud with its base at 2,100 feet, overcast cloud with its base at 2,700 feet, the ceiling at 2,100 feet, and visibility of 10 mi or more.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 2,100 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 2,100 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLESt. 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

55.0 F with a dew point of 49.0 F, 80 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,400 ft up; the lowest cloud reported is at 2,100 ft.

Chart of the air at St. Louis: temperature 55.0 degrees Fahrenheit and dew point 49.0, 80 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,400 feet above the station, against the lowest cloud reported at 2,100 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 STATION01,0002,0003,00040 F50 F60 F70 FSATURATES 1,400 FT ABOVE THE STATION, AT 47.6 FLOWEST CLOUD REPORTED, BKN 2,100 FTTEMPERATURE 55.0 FDEW POINT 49.0 FSPREAD 6.0 FRELATIVE HUMIDITY 80 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-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (300 degrees) at 14 mph, gusting 25 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 35 mph.

Plan of the wind at St. Louis, north up: blowing from 300 degrees, the west northwest, at 14 miles an hour, gusting 25; 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, 14 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 25 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

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Snow on the ground

Elsewhere in Missouri

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

Near Crystal Lake Park

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

Near Crystal Lake Park

River and lake gauges