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Casa Grande, Arizona

City in Pinal County, Arizona

Air quality

The air at Casa Grande

Index 31, good, led by ozone. Read at 11 PM from its reporting area, West Pinal (AZ), 2 miles off.

31Good
  • Ozone31Good37 ppb4 mi
  • Coarse particles (PM10)30Good9.9 mi

The days ahead

Highest 84, moderate, Fri Oct 16, led by coarse particles. Yesterday measured 46, good.

Smoke, the next 43 hours

Little smoke near the ground through Sat 5 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Casa Grande

None in the last 24 hours; 0.03 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
0.03in

Visibility

How far you can see at Casa Grande, the next 43 hours

Visibility stays 10 miles or more through Sat 5 PM.

FriSat

On the radar over Casa Grande, ArizonaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Casa Grande, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.1 miles away.

measured now3 instruments

Casa Granda (AWOS)CGZ

At an airfield/4.2 mi away/1,463 ft/67 ft above here

temp, wind, gust, visibility, precip, pressure

Rank-

CoolidgeAZMET-AZ05

At a river or reservoir gauge/9.4 mi away/1,388 ft/8 ft below here

temp, wind, gust, humidity, pressure

Rank820of 1,869

measured daily2 instruments

Casa Grande 2.4 NAZ-PN-61

In a volunteer observer's own ground/0.4 mi away/1,394 ft/2 ft below here

precip, snowfall, snow depth

Rank-

Casa GrandeCASA3

At a cooperative observer's station/1.6 mi away/1,399 ft/3 ft above here

snowfall, snow depth, precip, high, low

Rank775of 1,869

Station report

The weather at Citizen station FW9639, drawn

The nearest instrument reporting now, 0.1 mi from Casa Grande, Arizona. From its report of undefined: 3 of its 4 sheets.

The wind

From the east northeast (57 degrees) at 4 mph, gusting 14 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Citizen station FW9639, north up: blowing from 57 degrees, the east northeast, at 4 miles an hour, gusting 14; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FW9639FIG. C THE WIND AT CITIZEN STATION FW9639PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 57°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 4 MPH3GENTLE BREEZE84MODERATE BREEZE13GUST, 14 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station FW9639, the windSTATION REPORT · CWOP FW9639TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-16IDSR-FW9639-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 1,393 ft above sea level, 5 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 28.45 inHg and the temperature at 54.0 F; the station's altimeter setting of 29.93 inHg means its barometer reads 28.45 inHg; it reports 75.0 F, 21.0 F warmer than standard.

Section from sea level of where Citizen station FW9639 stands in the atmosphere, height to scale: the station 1,393 feet above sea level with 5 per cent of the air below it; the standard atmosphere's pressure there, 28.45 inches of mercury, and temperature, 54.0 degrees Fahrenheit; the altimeter setting of 29.93 and the station pressure it means, 28.45.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FW9639FIG. D WHERE CITIZEN STATION FW9639 STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHERECITIZEN STATION FW96395 PER CENT OF THE AIR BELOW IT1,393 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE28.45 inHgSTANDARD TEMPERATURE HERE54.0 FALTIMETER SETTING, REPORTED29.93 inHgITS BAROMETER READS28.45 inHgTEMPERATURE, REPORTED75.0 FTITLECitizen station FW9639, the columnSTATION REPORT · CWOP FW9639TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-16IDSR-FW9639-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The sun

On Oct 16 the noon sun stands 48 degrees above the horizon at 32.90 N, and the day is 11 h 12 min long. Level ground there takes 74 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station FW9639, angles true: on Oct 16 it stands 48 degrees above the horizon, against 81 at the June solstice, 57 at the equinoxes and 34 at the December solstice; the day is 11 h 12 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FW9639FIG. E THE SUN AT CITIZEN STATION FW9639ELEVATION LOOKING WEST, SOUTH TO THE LEFT: THE NOON SUN ON THE DAY OF THE REPORT, AND AT THE SOLSTICES AND EQUINOXES; ANGLES TRUETHE STATIONJUNE SOLSTICE 81°EQUINOXES 57°DECEMBER SOLSTICE 34°OCT 16, 48°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 12 MINLEVEL GROUND TAKES 74 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 32.90 N; THE SUN'S DECLINATION -9.1°TITLECitizen station FW9639, the sunSTATION REPORT · CWOP FW9639TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-16IDSR-FW9639-3DRAWN AS linework on paperSOURCES FB-ENG-007

The full report of Citizen station FW9639, in 4 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 Casa Grande

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

Near Casa Grande

River and lake gauges