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Arivaca Junction, Arizona

Community in Pima County, Arizona

Air quality

The air at Arivaca Junction

Index 20, good, led by fine particles. Read at 8 PM from its reporting area, Nogales (AZ), 24 miles off.

20Good
  • Fine particles (PM2.5)20Good-
  • Coarse particles (PM10)20Good-

The days ahead

Highest 51, moderate, Fri Oct 16, led by coarse particles. Yesterday measured 16, good.

Smoke, the next 46 hours

No smoke near the ground through Sat 5 PM.

ThuFriSat

Precipitation

What has fallen at Arivaca Junction

None in the last 3 days, to Thu 7 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 Arivaca Junction, the next 46 hours

Visibility stays 10 miles or more through Sat 5 PM.

ThuFriSat

On the radar over Arivaca Junction, ArizonaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Arivaca Junction, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.7 miles away.

measured now4 instruments

Hopkins RAWSQHPA3

A remote fire weather station/11.7 mi away/7,044 ft/3,932 ft above here

temp, wind, gust, humidity, pressure

Rank266of 1,869

Elgin 5 S53132

At a climate reference station/34.8 mi away/4,811 ft/1,699 ft above here

temp, humidity, wind, solar, precip

Rank1,199of 1,869

measured daily2 instruments

Green Valley 4.9 SWAZ-PM-404

In a volunteer observer's own ground/4.7 mi away/3,159 ft/47 ft above here

precip, snowfall, snow depth

Rank-

Tumacacori NMTUMA3

At a cooperative observer's station/11.4 mi away/3,267 ft/155 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Nogales INTL Airport, drawn

The nearest airport reporting now, 25.1 mi from Arivaca Junction, Arizona. From its report of Oct 15, 2026, 7:54 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 Nogales INTL Airport, 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 OLSFIG. A THE SKY OVER NOGALES INTL AIRPORTSECTION, 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 MORE0510TITLENogales INTL Airport, the skySTATION REPORT · ASOS OLSTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-OLS-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

68.0 F with a dew point of 41.0 F, 37 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 6,100 ft up.

Chart of the air at Nogales INTL Airport: temperature 68.0 degrees Fahrenheit and dew point 41.0, 37 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 6,100 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OLSFIG. B THE AIR AT NOGALES INTL AIRPORTTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,0007,0008,00020 F30 F40 F50 F60 F70 F80 FSATURATES 6,100 FT ABOVE THE STATION, AT 35.2 FTEMPERATURE 68.0 FDEW POINT 41.0 FSPREAD 27.0 FRELATIVE HUMIDITY 37 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 POINTTITLENogales INTL Airport, the airSTATION REPORT · ASOS OLSTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-OLS-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northeast (20 degrees) at 6 mph: force 2, a light breeze on the Beaufort scale. The strongest gust today was 17 mph.

Plan of the wind at Nogales INTL Airport, north up: blowing from 20 degrees, the north northeast, 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 OLSFIG. C THE WIND AT NOGALES INTL AIRPORTPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 20°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLENogales INTL Airport, the windSTATION REPORT · ASOS OLSTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-OLS-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Nogales INTL Airport, 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 Arivaca Junction

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

Near Arivaca Junction

River and lake gauges