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Ismay, Montana

Town in Custer County, Montana

Air quality

The air at Ismay

Index 15, good, led by ozone. Read at 6 AM from its reporting area, Theodore Roosevelt National Park (ND), 68 miles off.

15Good
  • Fine particles (PM2.5)9Good-
  • Ozone15Good-

The days ahead

Yesterday measured 26, good.

Smoke, the next 42 hours

No smoke near the ground through Sun 12 AM.

FriSat

Precipitation

What has fallen at Ismay

None in the last 3 days, to Fri 6 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 Ismay, the next 42 hours

Visibility stays 9 miles or more through Sun 12 AM, lowest 10 miles Fri 8 AM.

FriSat

On the radar over Ismay, MontanaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Ismay, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.3 miles away.

measured now3 instruments

BakerBHK

At an airfield/27.6 mi away/2,972 ft/438 ft above here

temp, wind, gust, visibility, precip, pressure

Rank85of 1,053

measured daily2 instruments

Ismay 3.4 NEMT-CS-11

In a volunteer observer's own ground/3.3 mi away/2,718 ft/184 ft above here

precip, snowfall, snow depth

Rank613of 1,053

PlevnaPLEM8

At a cooperative observer's station/14.4 mi away/2,749 ft/215 ft above here

snowfall, snow depth, precip, high, low

Rank830of 1,053

Station report

The weather at Baker, drawn

The nearest airport reporting now, 27.6 mi from Ismay, Montana. From its report of Oct 16, 2026, 6:51 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 Baker, 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 BHKFIG. A THE SKY OVER BAKERSECTION, 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 MORE0510TITLEBaker, the skySTATION REPORT · ASOS BHKTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-BHK-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

21.0 F with a dew point of 18.0 F, 88 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 700 ft up.

Chart of the air at Baker: temperature 21.0 degrees Fahrenheit and dew point 18.0, 88 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BHKFIG. B THE AIR AT BAKERTHE 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 FSATURATES 700 FT ABOVE THE STATION, AT 17.4 FTEMPERATURE 21.0 FDEW POINT 18.0 FSPREAD 3.0 FRELATIVE HUMIDITY 88 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 POINTTITLEBaker, the airSTATION REPORT · ASOS BHKTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-BHK-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south southeast (150 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Baker, north up: blowing from 150 degrees, the south 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 BHKFIG. C THE WIND AT BAKERPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 150°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEBaker, the windSTATION REPORT · ASOS BHKTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-BHK-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Plevna (PLEM8), 14.4 miles from here, read 15 Oct, 18:47. measured daily

Elsewhere in Montana

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

Near Ismay

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

Near Ismay

River and lake gauges