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Roy, Utah

City in Weber County, Utah

Air quality

The air at Roy

Index 31, good, led by ozone. Read at 10 PM from its reporting area, Ogden (UT), 6 miles off.

31Good
  • Fine particles (PM2.5)14Good-
  • Ozone31Good-
  • Coarse particles (PM10)0Good-

The days ahead

Good each day through Sat Oct 17, led by fine particles. Yesterday measured 27, good.

Smoke, the next 44 hours

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

FriSat

Precipitation

What has fallen at Roy

None in the last 24 hours; 0.74 in over the last 3 days, to Thu 9 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.74in

Visibility

How far you can see at Roy, the next 44 hours

Visibility stays 10 miles or more through Sat 6 PM.

FriSat

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

What is measuring near here

The 8 instruments nearest Roy, 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 now6 instruments

MorganS2133

At a soil climate station/22.3 mi away/5,113 ft/737 ft above here

temp, humidity, soil temp, soil moisture

Rank527of 998

measured daily2 instruments

Roy 1.2 SSEUT-WB-2

In a volunteer observer's own ground/1.2 mi away/4,462 ft/86 ft above here

precip, snowfall, snow depth

Rank-

Ogden NE BenchOGBU1

At a cooperative observer's station/7.8 mi away/4,606 ft/230 ft above here

snowfall, snow depth, precip, high, low

Rank12of 998

Station report

The weather at Ogden-Hinckley Muni, drawn

The nearest airport reporting now, 2.5 mi from Roy, Utah. From its report of Oct 15, 2026, 10:53 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 Ogden-Hinckley Muni, 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 OGDFIG. A THE SKY OVER OGDEN-HINCKLEY MUNISECTION, 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 MORE0510TITLEOgden-Hinckley Muni, the skySTATION REPORT · ASOS OGDTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-OGD-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

55.0 F with a dew point of 34.0 F, 45 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 4,800 ft up.

Chart of the air at Ogden-Hinckley Muni: temperature 55.0 degrees Fahrenheit and dew point 34.0, 45 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 4,800 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OGDFIG. B THE AIR AT OGDEN-HINCKLEY MUNITHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00020 F30 F40 F50 F60 F70 FSATURATES 4,800 FT ABOVE THE STATION, AT 29.5 FTEMPERATURE 55.0 FDEW POINT 34.0 FSPREAD 21.0 FRELATIVE HUMIDITY 45 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 POINTTITLEOgden-Hinckley Muni, the airSTATION REPORT · ASOS OGDTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-OGD-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Ogden-Hinckley Muni, 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 OGDFIG. C THE WIND AT OGDEN-HINCKLEY MUNIPLAN, 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 FORCE73TITLEOgden-Hinckley Muni, the windSTATION REPORT · ASOS OGDTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-OGD-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Ogden-Hinckley Muni, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Ogden NE Bench (OGBU1), 7.8 miles from here, read 15 Oct, 08:00. measured daily

Elsewhere in Utah

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

Near Roy

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

Near Roy

River and lake gauges