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Simms, Montana

Community in Cascade County, Montana

Air quality

The air at Simms

Index 3, good, led by fine particles. Read at 10 PM from its reporting area, Choteau (MT), 26 miles off.

3Good
  • Fine particles (PM2.5)3Good-

The days ahead

Yesterday measured 18, good.

Smoke, the next 44 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 Simms

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 Simms, the next 44 hours

Visibility stays 10 miles or more through Sat 6 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Simms, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 7.3 miles away.

measured now4 instruments

Golf1GM

At an airfield/13.8 mi away/4,333 ft/767 ft above here

temp, wind, gust, visibility, precip, pressure

Rank875of 1,053

measured daily2 instruments

FairfieldFFDM8

At a cooperative observer's station/8.9 mi away/3,986 ft/420 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Golf, drawn

The nearest airport reporting now, 13.8 mi from Simms, Montana. From its report of Oct 15, 2026, 9:55 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 Golf, 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 1GMFIG. A THE SKY OVER GOLFSECTION, 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 MORE0510TITLEGolf, the skySTATION REPORT · ASOS 1GMTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-1GM-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

39.7 F with a dew point of 30.0 F, 68 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,200 ft up.

Chart of the air at Golf: temperature 39.7 degrees Fahrenheit and dew point 30.0, 68 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,200 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 1GMFIG. B THE AIR AT GOLFTHE 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 2,200 FT ABOVE THE STATION, AT 28.0 FTEMPERATURE 39.7 FDEW POINT 30.0 FSPREAD 9.7 FRELATIVE HUMIDITY 68 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 POINTTITLEGolf, the airSTATION REPORT · ASOS 1GMTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-1GM-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south (190 degrees) at 10 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Golf, north up: blowing from 190 degrees, the south, at 10 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 1GMFIG. C THE WIND AT GOLFPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 190°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 10 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEGolf, the windSTATION REPORT · ASOS 1GMTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-1GM-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Golf, 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 Simms

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

Near Simms

River and lake gauges