Storm Station
Corwin Springs, Montana
42°
Mostly clear· Feels like 42°·Light air 2 mph WSW
A slight chance of rain showers between 9am and noon. Mostly cloudy. High near 74, with temperatures falling to around 72 in the afternoon. South southwest wind 2 to 7 mph. Chance of precipitation is 20%.
-UV
-Air quality
43%Humidity
33%Cloud

What is measuring near here

The 5 instruments nearest Corwin Springs, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.2 miles away.

measured now3 instruments

Gardiner US-89 MP 11.0MTGRD

Beside a road/2.2 mi away/5,098 ft/35 ft below here

temp, pavement temp, wind, visibility, precip

Rank595of 702

West YellowstoneWYS

At an airfield/34.0 mi away/6,649 ft/1,516 ft above here

temp, wind, gust, visibility, precip, pressure

Rank29of 702

measured daily2 instruments

Big Sky 1.7 NWMT-GN-21

In a volunteer observer's own ground/28.0 mi away/6,814 ft/1,681 ft above here

precip, snowfall, snow depth

Rank-

West Yellowstone USFSWYWM8

At a cooperative observer's station/35.0 mi away/6,667 ft/1,534 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at West Yellowstone, drawn

The nearest airport reporting now, 34.0 mi from Corwin Springs. From its report of Sep 27, 2026, 6:30 AM local time: 3 of its 6 sheets.

The sky

Scattered at 10,000 ft, broken at 12,000 ft; the ceiling is 12,000 ft; visibility 10 mi or more.

Section of the sky over West Yellowstone, height above the station to scale: scattered cloud with its base at 10,000 feet, broken cloud with its base at 12,000 feet, the ceiling at 12,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT WYSFIG. A THE SKY OVER WEST YELLOWSTONESECTION, 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 STATION02,5005,0007,50010,00012,50015,00017,50020,000ETAGESLOWMIDDLEHIGHTHE STATIONTHE CEILOMETER READS TO 12,000 FTBKN 12,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYSCT 10,000 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEWest Yellowstone, the skySTATION REPORT · ASOS WYSTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-WYS-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-013, FB-SKY-014

The air

33.8 F with a dew point of 30.2 F, 86 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 800 ft up; the lowest cloud reported is at 10,000 ft.

Chart of the air at West Yellowstone: temperature 33.8 degrees Fahrenheit and dew point 30.2, 86 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 800 feet above the station, against the lowest cloud reported at 10,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT WYSFIG. B THE AIR AT WEST YELLOWSTONETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00020 F30 F40 FSATURATES 800 FT ABOVE THE STATION, AT 29.4 FABOVE THIS SHEET: LOWEST CLOUD REPORTED, SCT 10,000 FTTEMPERATURE 33.8 FDEW POINT 30.2 FSPREAD 3.6 FRELATIVE HUMIDITY 86 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 POINTTITLEWest Yellowstone, the airSTATION REPORT · ASOS WYSTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-WYS-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the southwest (220 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at West Yellowstone, north up: blowing from 220 degrees, the southwest, 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 WYSFIG. C THE WIND AT WEST YELLOWSTONEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 220°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEWest Yellowstone, the windSTATION REPORT · ASOS WYSTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-WYS-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-in

Snow on the ground

Elsewhere in Montana

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

Near Corwin Springs

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