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Altamont, Utah

Town in Duchesne County, Utah

Air quality

The air at Altamont

Index 16, good, led by fine particles. Read at 4 AM from its reporting area, Roosevelt (UT), 15 miles off.

16Good
  • Fine particles (PM2.5)16Good-
  • Ozone10Good14 ppb11.4 mi
  • Coarse particles (PM10)3Good-
  • Nitrogen dioxide0Good0.2 ppb21.9 mi

The days ahead

Good each day through Sat Oct 17, led by fine particles. Yesterday measured 32, good.

Smoke, the next 45 hours

No smoke near the ground through Sun 12 AM.

FriSat

Precipitation

What has fallen at Altamont

None in the last 3 days, to Fri 3 AM. 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 Altamont, the next 45 hours

Visibility stays 10 miles or more through Sun 12 AM.

FriSat

On the radar over Altamont, UtahReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Altamont, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.2 miles away.

measured now5 instruments

Mountain HomeS2134

At a soil climate station/6.3 mi away/6,927 ft/546 ft above here

temp, humidity, soil temp, soil moisture

Rank533of 998

DuchesneU69

At an airfield/12.5 mi away/5,809 ft/572 ft below here

temp, wind, gust, visibility, precip, pressure

Rank5of 998

measured daily2 instruments

AltamontALMU1

At a cooperative observer's station/0.2 mi away/6,378 ft/3 ft below here

snowfall, snow depth, precip, high, low

Rank14of 998

Bridgeland 1.2 WUT-DC-1

In a volunteer observer's own ground/13.3 mi away/5,334 ft/1,047 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Duchesne, drawn

The nearest airport reporting now, 12.5 mi from Altamont, Utah. From its report of Oct 16, 2026, 4:15 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 Duchesne, 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 U69FIG. A THE SKY OVER DUCHESNESECTION, 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 MORE0510TITLEDuchesne, the skySTATION REPORT · ASOS U69TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-U69-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

35.6 F with a dew point of 33.8 F, 93 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 400 ft up.

Chart of the air at Duchesne: temperature 35.6 degrees Fahrenheit and dew point 33.8, 93 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 400 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT U69FIG. B THE AIR AT DUCHESNETHE 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 400 FT ABOVE THE STATION, AT 33.4 FTEMPERATURE AND DEW POINT 35.6 F, 33.8 FRELATIVE HUMIDITY 93 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 POINTTITLEDuchesne, the airSTATION REPORT · ASOS U69TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-U69-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (310 degrees) at 6 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Duchesne, north up: blowing from 310 degrees, the northwest, at 6 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 U69FIG. C THE WIND AT DUCHESNEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 310°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEDuchesne, the windSTATION REPORT · ASOS U69TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-U69-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Altamont (ALMU1), 0.2 miles from here, read 15 Oct, 19:00. measured daily

Elsewhere in Utah

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

Near Altamont

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

Near Altamont

River and lake gauges