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Fort Defiance, Arizona

Community in Apache County, Arizona

Air quality

The air at Fort Defiance

Index 33, good, led by ozone. Read at 11 PM from its reporting area, Chaco Culture National Historical Park (NM), 68 miles off.

33Good
  • Ozone33Good-

The days ahead

Yesterday measured 50, good.

Smoke, the next 43 hours

No smoke near the ground through Sat 5 PM.

FriSat

Precipitation

What has fallen at Fort Defiance

None in the last 24 hours; 0.21 in over the last 3 days, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.21in

Visibility

How far you can see at Fort Defiance, the next 43 hours

Visibility stays 10 miles or more through Sat 5 PM.

FriSat

On the radar over Fort Defiance, ArizonaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Fort Defiance, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 5.7 miles away.

measured now3 instruments

Piney HillQPHA3

At a river or reservoir gauge/6.0 mi away/8,104 ft/1,320 ft above here

temp, wind, gust, humidity, pressure

Rank225of 1,869

measured daily2 instruments

Sawmill 6.6 EAZ-AP-25

In a volunteer observer's own ground/12.0 mi away/7,097 ft/313 ft above here

precip, snowfall, snow depth

Rank-

SandersSANA3

At a cooperative observer's station/38.5 mi away/5,879 ft/905 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Window Rock (Was P34), drawn

The nearest airport reporting now, 5.7 mi from Fort Defiance, Arizona. From its report of Oct 15, 2026, 11:53 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 Window Rock (Was P34), 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 RQEFIG. A THE SKY OVER WINDOW ROCK (WAS P34)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 MORE0510TITLEWindow Rock (Was P34), the skySTATION REPORT · ASOS RQETYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-RQE-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

45.0 F with a dew point of 38.0 F, 76 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,600 ft up.

Chart of the air at Window Rock (Was P34): temperature 45.0 degrees Fahrenheit and dew point 38.0, 76 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,600 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RQEFIG. B THE AIR AT WINDOW ROCK (WAS P34)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 STATION01,0002,0003,00030 F40 F50 F60 FSATURATES 1,600 FT ABOVE THE STATION, AT 36.4 FTEMPERATURE 45.0 FDEW POINT 38.0 FSPREAD 7.0 FRELATIVE HUMIDITY 76 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 POINTTITLEWindow Rock (Was P34), the airSTATION REPORT · ASOS RQETYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-RQE-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

At 5 mph: force 2, a light breeze on the Beaufort scale. The strongest gust today was 30 mph.

Plan of the wind at Window Rock (Was P34), north up: at 5 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 RQEFIG. C THE WIND AT WINDOW ROCK (WAS P34)PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONDIRECTION NOT REPORTEDBEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEWindow Rock (Was P34), the windSTATION REPORT · ASOS RQETYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-RQE-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Window Rock (Was P34), in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in Arizona

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

Near Fort Defiance

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

Near Fort Defiance

River and lake gauges