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Alta, Wyoming

Community in Teton County, Wyoming

Air quality

The air at Alta

Index 24, good, led by ozone. Read at 10 PM from its reporting area, Jackson (WY), 24 miles off.

24Good
  • Fine particles (PM2.5)0Good-
  • Ozone24Good-
  • Coarse particles (PM10)4Good-

The days ahead

Yesterday measured 35, good.

Smoke, the next 45 hours

No smoke near the ground through Sun 6 PM.

SatSun

Precipitation

What has fallen at Alta

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 Alta, the next 45 hours

Visibility stays 10 miles or more through Sun 6 PM.

SatSun

On the radar over Alta, WyomingReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Alta, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.6 miles away.

measured now5 instruments

Alta - DcpATRW4

At a river or reservoir gauge/0.6 mi away/6,480 ft/26 ft above here

temp, wind, gust, humidity, pressure

Rank549of 966

Moose 1 NNE04131

At a climate reference station/17.8 mi away/6,466 ft/12 ft above here

temp, humidity, wind, solar, precip

Rank613of 966

measured daily2 instruments

Alta - COOPALTW4

At a cooperative observer's station/0.6 mi away/6,444 ft/10 ft below here

snowfall, snow depth, precip, high, low

Rank-

Moose 1.6 NWWY-TT-25

In a volunteer observer's own ground/15.8 mi away/6,649 ft/195 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Jackson Hole (AWOS), drawn

The nearest airport reporting now, 18.2 mi from Alta, Wyoming. From its report of Oct 16, 2026, 9:56 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 Jackson Hole (AWOS), 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 JACFIG. A THE SKY OVER JACKSON HOLE (AWOS)SECTION, 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 MORE0510TITLEJackson Hole (AWOS), the skySTATION REPORT · ASOS JACTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-JAC-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

34.0 F with a dew point of 30.0 F, 85 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 900 ft up.

Chart of the air at Jackson Hole (AWOS): temperature 34.0 degrees Fahrenheit and dew point 30.0, 85 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 900 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JACFIG. B THE AIR AT JACKSON HOLE (AWOS)THE 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 FSATURATES 900 FT ABOVE THE STATION, AT 29.1 FTEMPERATURE 34.0 FDEW POINT 30.0 FSPREAD 4.0 FRELATIVE HUMIDITY 85 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 POINTTITLEJackson Hole (AWOS), the airSTATION REPORT · ASOS JACTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-JAC-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northeast (20 degrees) at 7 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Jackson Hole (AWOS), north up: blowing from 20 degrees, the north northeast, at 7 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 JACFIG. C THE WIND AT JACKSON HOLE (AWOS)PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 20°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 7 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEJackson Hole (AWOS), the windSTATION REPORT · ASOS JACTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-JAC-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Jackson Hole (AWOS), in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in Wyoming

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

Near Alta

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

Near Alta

River and lake gauges