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St. Pierre, Montana

Community in Hill County, Montana

Air quality

The air at St. Pierre

Index 2, good, led by fine particles. Read at 1 AM from its reporting area, Havre (MT), 22 miles off.

2Good
  • Fine particles (PM2.5)2Good-

The days ahead

Yesterday measured 3, good.

Smoke, the next 41 hours

Little smoke near the ground through Sat 6 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at St. Pierre

None in the last 3 days, to Fri 12 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at St. Pierre, the next 41 hours

Visibility stays 10 miles or more through Sat 6 PM.

FriSat

On the radar over St. Pierre, MontanaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest St. Pierre, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.5 miles away.

measured now5 instruments

HavreHVR

At an airfield/20.1 mi away/2,598 ft/1,294 ft below here

temp, wind, gust, visibility, precip, pressure

Rank12of 1,053

measured daily2 instruments

Fort AssinniboineASNM8

At a cooperative observer's station/16.9 mi away/2,667 ft/1,225 ft below here

snowfall, snow depth, precip, high, low

Rank-

Loma 0.1 SEMT-CH-7

In a volunteer observer's own ground/38.5 mi away/2,579 ft/1,313 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Havre, drawn

The nearest airport reporting now, 20.1 mi from St. Pierre, Montana. From its report of Oct 16, 2026, 1:53 AM 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 Havre, 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 HVRFIG. A THE SKY OVER HAVRESECTION, 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 MORE0510TITLEHavre, the skySTATION REPORT · ASOS HVRTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-HVR-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

29.0 F with a dew point of 25.0 F, 85 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 900 ft up.

Chart of the air at Havre: temperature 29.0 degrees Fahrenheit and dew point 25.0, 85 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 900 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HVRFIG. B THE AIR AT HAVRETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00010 F20 F30 F40 FSATURATES 900 FT ABOVE THE STATION, AT 24.1 FTEMPERATURE 29.0 FDEW POINT 25.0 FSPREAD 4.0 FRELATIVE HUMIDITY 85 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 POINTTITLEHavre, the airSTATION REPORT · ASOS HVRTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-HVR-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east southeast (110 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Havre, north up: blowing from 110 degrees, the east southeast, at 3 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HVRFIG. C THE WIND AT HAVREPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 110°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEHavre, the windSTATION REPORT · ASOS HVRTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-HVR-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Montana

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

Near St. Pierre

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

Near St. Pierre

River and lake gauges