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Bonner-West Riverside, Montana

Community in Missoula County, Montana

Air quality

The air at Bonner-West Riverside

Index 21, good, led by fine particles. Read at 10 PM from its reporting area, Missoula (MT), 7 miles off.

21Good
  • Fine particles (PM2.5)21Good6.7 mi
  • Ozone5Good1 ppb6.7 mi
  • Coarse particles (PM10)14Good6.7 mi

The days ahead

Yesterday measured 22, good.

Smoke, the next 45 hours

Little smoke near the ground through Sun 6 PM: the index from smoke stays at 17 or under.

SatSun

Precipitation

What has fallen at Bonner-West Riverside

None in the last 3 days, to Fri 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 Bonner-West Riverside, the next 45 hours

Visibility stays 10 miles or more through Sun 6 PM.

SatSun

On the radar over Bonner-West Riverside, MontanaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Bonner-West Riverside, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.7 miles away.

measured now4 instruments

measured daily2 instruments

Missoula 3.1 EMT-MS-5

In a volunteer observer's own ground/2.5 mi away/3,269 ft/25 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Missoula/Bell Field, drawn

The nearest airport reporting now, 9.9 mi from Bonner-West Riverside, Montana. From its report of Oct 16, 2026, 9:53 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 Missoula/Bell Field, 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 MSOFIG. A THE SKY OVER MISSOULA/BELL FIELDSECTION, 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 MORE0510TITLEMissoula/Bell Field, the skySTATION REPORT · ASOS MSOTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-MSO-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

41.0 F with a dew point of 35.0 F, 79 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,400 ft up.

Chart of the air at Missoula/Bell Field: temperature 41.0 degrees Fahrenheit and dew point 35.0, 79 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,400 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MSOFIG. B THE AIR AT MISSOULA/BELL FIELDTHE 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 1,400 FT ABOVE THE STATION, AT 33.7 FTEMPERATURE 41.0 FDEW POINT 35.0 FSPREAD 6.0 FRELATIVE HUMIDITY 79 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 POINTTITLEMissoula/Bell Field, the airSTATION REPORT · ASOS MSOTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-MSO-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (330 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Missoula/Bell Field, north up: blowing from 330 degrees, the north northwest, 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 MSOFIG. C THE WIND AT MISSOULA/BELL FIELDPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 330°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMissoula/Bell Field, the windSTATION REPORT · ASOS MSOTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-MSO-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Missoula 6 NW Wfo (MSOM8), 9.9 miles from here, read 16 Oct, 18:00. measured daily

Elsewhere in Montana

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

Near Bonner-West Riverside

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

Near Bonner-West Riverside

River and lake gauges