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St. Marys Point, Minnesota

City in Washington County, Minnesota

Air quality

The air at St. Marys Point

Index 19, good, led by ozone. Read at 1 PM from its reporting area, Twin Cities (MN), 21 miles off.

19Good
  • Fine particles (PM2.5)8Good13.4 mi
  • Ozone19Good23 ppb17.8 mi
  • Coarse particles (PM10)6Good-
  • Nitrogen dioxide6Good6.5 ppb24 mi
  • Carbon monoxide-0.1 ppm24 mi

The days ahead

Good each day through Sun Oct 18, led by ozone. Yesterday measured 36, good.

Smoke, the next 43 hours

No smoke near the ground through Sun 7 AM.

FriSatSun

Precipitation

What has fallen at St. Marys Point

0.67 in in the last 24 hours, 1.05 in over the last 3 days, to Fri 12 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.67in
Last 3 days
1.05in

Visibility

How far you can see at St. Marys Point, the next 43 hours

Visibility stays 8 miles or more through Sun 7 AM, lowest 8 miles Sat 4 AM.

FriSatSun

On the radar over St. Marys Point, MinnesotaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest St. Marys Point, 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

measured daily2 instruments

Station report

The weather at St Paul / Lake Elmo, drawn

The nearest airport reporting now, 7.1 mi from St. Marys Point, Minnesota. From its report of Oct 16, 2026, 1:35 PM local time: 3 of its 6 sheets.

The sky

Scattered at 3,900 ft; visibility 10 mi or more.

Section of the sky over St Paul / Lake Elmo, height above the station to scale: scattered cloud with its base at 3,900 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 21DFIG. A THE SKY OVER ST PAUL / LAKE ELMOSECTION, 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 STATION01,0002,0003,0004,0005,0006,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETSCT 3,900 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYVISIBILITY, MILES: 10 MI OR MORE0510TITLESt Paul / Lake Elmo, the skySTATION REPORT · ASOS 21DTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-21D-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

50.0 F with a dew point of 32.0 F, 50 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 4,100 ft up; the lowest cloud reported is at 3,900 ft.

Chart of the air at St Paul / Lake Elmo: temperature 50.0 degrees Fahrenheit and dew point 32.0, 50 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, against the lowest cloud reported at 3,900 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 21DFIG. B THE AIR AT ST PAUL / LAKE ELMOTHE 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 FSATURATES 4,100 FT ABOVE THE STATION, AT 28.2 FLOWEST CLOUD REPORTED, SCT 3,900 FTTEMPERATURE 50.0 FDEW POINT 32.0 FSPREAD 18.0 FRELATIVE HUMIDITY 50 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 Paul / Lake Elmo, the airSTATION REPORT · ASOS 21DTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-21D-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north (350 degrees) at 16 mph, gusting 20 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 32 mph.

Plan of the wind at St Paul / Lake Elmo, north up: blowing from 350 degrees, the north, at 16 miles an hour, gusting 20; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 21DFIG. C THE WIND AT ST PAUL / LAKE ELMOPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 350°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 16 MPH5FRESH BREEZE19GUST, 20 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESt Paul / Lake Elmo, the windSTATION REPORT · ASOS 21DTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-21D-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of St Paul / Lake Elmo, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Stillwater 2SW (STIM5), 9.9 miles from here, read 16 Oct, 08:00. measured daily

Elsewhere in Minnesota

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

Near St. Marys Point

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

Near St. Marys Point

River and lake gauges