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Diagonal, Iowa

City in Ringgold County, Iowa

Air quality

The air at Diagonal

Index 23, good, led by fine particles. Read at 5 AM from its reporting area, Viking Lake State Park (IA), 38 miles off.

23Good
  • Fine particles (PM2.5)23Good-
  • Ozone12Good-

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 27, good.

Smoke, the next 44 hours

No smoke near the ground through Mon 1 AM.

SatSun

Precipitation

What has fallen at Diagonal

None in the last 24 hours; 0.25 in over the last 3 days, to Sat 5 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.25in

Visibility

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

Visibility stays 8 miles or more through Mon 1 AM, lowest 9 miles Sun 7 AM.

SatSun

On the radar over Diagonal, IowaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Diagonal, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.1 miles away.

measured now3 instruments

Mount AyrRMOI4

Beside a road/7.7 mi away/1,156 ft/6 ft below here

temp, pavement temp, wind, visibility, precip

Rank678of 1,055

CrestonCSQ

At an airfield/14.5 mi away/1,290 ft/128 ft above here

temp, wind, gust, visibility, precip, pressure

Rank665of 1,055

measured daily2 instruments

Diagonal 2.1 SEIA-RN-1

In a volunteer observer's own ground/2.1 mi away/1,227 ft/65 ft above here

precip, snowfall, snow depth

Rank-

Mount AyrMTAI4

At a cooperative observer's station/9.1 mi away/1,132 ft/30 ft below here

snowfall, snow depth, precip, high, low

Rank971of 1,055

Station report

The weather at Creston, drawn

The nearest airport reporting now, 14.5 mi from Diagonal, Iowa. From its report of Oct 17, 2026, 6:15 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 Creston, 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 CSQFIG. A THE SKY OVER CRESTONSECTION, 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 MORE0510TITLECreston, the skySTATION REPORT · ASOS CSQTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-CSQ-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

32.0 F with a dew point of 32.0 F, 100 per cent relative humidity. The air is saturated at the ground.

Chart of the air at Creston: temperature 32.0 degrees Fahrenheit and dew point 32.0, 100 per cent relative humidity; the air saturated at the ground; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CSQFIG. B THE AIR AT CRESTONTHE 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 FSATURATED AT THE GROUNDTEMPERATURE AND DEW POINT 32.0 F, 32.0 FRELATIVE HUMIDITY 100 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 POINTTITLECreston, the airSTATION REPORT · ASOS CSQTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-CSQ-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Creston, 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 CSQFIG. C THE WIND AT CRESTONPLAN, 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 FORCE73TITLECreston, the windSTATION REPORT · ASOS CSQTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-CSQ-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Mount Ayr (MTAI4), 9.1 miles from here, read 14 Oct, 07:00. measured daily

Elsewhere in Iowa

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

Near Diagonal

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

Near Diagonal

River and lake gauges