Storm Station
Bonner-West Riverside, Montana
40°
Clear· Feels like 37°·Light air 4 mph NW
Mostly cloudy, with a low around 34. East wind around 2 mph.
-UV
-Air quality
38%Humidity
8%Cloud

What is measuring near here

The 5 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 now3 instruments

Bonner I-90 MP 110.3MTBON

Beside a road/0.7 mi away/3,274 ft/20 ft below here

temp, pavement temp, wind, visibility, precip

Rank642of 702

Stuart Mountain SnotelSTTM8

A snow pillow on a mountain/8.0 mi away/7,400 ft/4,106 ft above here

temp, wind, gust, humidity, pressure

Rank397of 702

Missoula/Bell FieldMSO

At an airfield/9.9 mi away/3,189 ft/105 ft below here

temp, wind, gust, visibility, precip, pressure

Rank13of 702

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-

Missoula 6 NW WfoMSOM8

At a cooperative observer's station/9.9 mi away/3,199 ft/95 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Missoula/Bell Field, drawn

The nearest airport reporting now, 9.9 mi from Bonner-West Riverside. From its report of Sep 27, 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 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 6DATE2026-09-27IDSR-MSO-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

33.0 F with a dew point of 27.0 F, 78 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 33.0 degrees Fahrenheit and dew point 27.0, 78 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 STATION01,0002,0003,00010 F20 F30 F40 FSATURATES 1,400 FT ABOVE THE STATION, AT 25.7 FTEMPERATURE 33.0 FDEW POINT 27.0 FSPREAD 6.0 FRELATIVE HUMIDITY 78 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 6DATE2026-09-27IDSR-MSO-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Missoula/Bell Field, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, 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 STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMissoula/Bell Field, the windSTATION REPORT · ASOS MSOTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-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 26 Sep, 23:55. 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.