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Big Timber, Montana

City in Sweet Grass County, Montana

Air quality

The air at Big Timber

Index 30, good, led by fine particles. Read at 10 PM from its reporting area, Billings (MT), 69 miles off.

30Good
  • Fine particles (PM2.5)30Good-
  • Ozone22Good-

The days ahead

Yesterday measured 26, good.

Smoke, the next 44 hours

No smoke near the ground through Sat 6 PM.

FriSat

Precipitation

What has fallen at Big Timber

None in the last 3 days, to Thu 9 PM. 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 Big Timber, the next 44 hours

Visibility stays 10 miles or more through Sat 6 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Big Timber, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.1 miles away.

measured now4 instruments

Big Timber6S0

At an airfield/2.2 mi away/4,475 ft/377 ft above here

temp, wind, gust, visibility, precip, pressure

Rank148of 1,053

measured daily2 instruments

Big TimberBGTM8

At a cooperative observer's station/0.1 mi away/4,112 ft/14 ft above here

snowfall, snow depth, precip, high, low

Rank-

Big Timber 11.3 NNEMT-SG-10

In a volunteer observer's own ground/11.3 mi away/4,531 ft/433 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Big Timber, drawn

The nearest airport reporting now, 2.2 mi from Big Timber, Montana. From its report of Oct 15, 2026, 10:45 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 Big Timber, 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 6S0FIG. A THE SKY OVER BIG TIMBERSECTION, 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 MORE0510TITLEBig Timber, the skySTATION REPORT · ASOS 6S0TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-6S0-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

35.6 F with a dew point of 28.4 F, 75 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,600 ft up.

Chart of the air at Big Timber: temperature 35.6 degrees Fahrenheit and dew point 28.4, 75 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,600 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 6S0FIG. B THE AIR AT BIG TIMBERTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00020 F30 F40 F50 FSATURATES 1,600 FT ABOVE THE STATION, AT 26.8 FTEMPERATURE 35.6 FDEW POINT 28.4 FSPREAD 7.2 FRELATIVE HUMIDITY 75 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 POINTTITLEBig Timber, the airSTATION REPORT · ASOS 6S0TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-6S0-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east northeast (70 degrees) at 6 mph: force 2, a light breeze on the Beaufort scale. The strongest gust today was 29 mph.

Plan of the wind at Big Timber, north up: blowing from 70 degrees, the east northeast, at 6 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 6S0FIG. C THE WIND AT BIG TIMBERPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 70°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEBig Timber, the windSTATION REPORT · ASOS 6S0TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-6S0-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Big Timber, 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 Big Timber

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

Near Big Timber

River and lake gauges