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Hartley, Iowa

City in O'Brien County, Iowa

Air quality

The air at Hartley

Index 20, good, led by ozone. Read at 2 AM from its reporting area, Sioux City (IA), 64 miles off.

20Good
  • Ozone20Good-

Smoke, the next 41 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Hartley

0.91 in in the last 24 hours, 0.98 in over the last 3 days, to Fri 2 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.91in
Last 3 days
0.98in

Visibility

How far you can see at Hartley, the next 41 hours

Visibility stays 8 miles or more through Sat 7 PM, lowest 9 miles Fri 4 AM.

FriSat

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

What is measuring near here

The 5 instruments nearest Hartley, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.7 miles away.

measured now3 instruments

SpencerSPW

At an airfield/13.5 mi away/1,322 ft/142 ft below here

temp, wind, gust, visibility, precip, pressure

Rank193of 1,060

measured daily2 instruments

Everly 3 WNWEVYI4

At a cooperative observer's station/5.6 mi away/1,414 ft/50 ft below here

snowfall, snow depth, precip, high, low

Rank-

Sanborn 0.4 NIA-OB-7

In a volunteer observer's own ground/9.0 mi away/1,563 ft/99 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Spencer, drawn

The nearest airport reporting now, 13.5 mi from Hartley, Iowa. From its report of Oct 16, 2026, 2:53 AM local time: 3 of its 6 sheets.

The sky

Scattered at 1,900 ft, broken at 2,400 ft, overcast at 2,900 ft; the ceiling is 2,400 ft; visibility 10 mi or more.

Section of the sky over Spencer, height above the station to scale: scattered cloud with its base at 1,900 feet, broken cloud with its base at 2,400 feet, overcast cloud with its base at 2,900 feet, the ceiling at 2,400 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SPWFIG. A THE SKY OVER SPENCERSECTION, 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 STATION01,0002,0003,0004,0005,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 2,900 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 2,400 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYSCT 1,900 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 2,400 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLESpencer, the skySTATION REPORT · ASOS SPWTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-SPW-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

44.0 F with a dew point of 40.0 F, 86 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 900 ft up; the lowest cloud reported is at 1,900 ft.

Chart of the air at Spencer: temperature 44.0 degrees Fahrenheit and dew point 40.0, 86 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 900 feet above the station, against the lowest cloud reported at 1,900 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SPWFIG. B THE AIR AT SPENCERTHE 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 FSATURATES 900 FT ABOVE THE STATION, AT 39.1 FLOWEST CLOUD REPORTED, SCT 1,900 FTTEMPERATURE 44.0 FDEW POINT 40.0 FSPREAD 4.0 FRELATIVE HUMIDITY 86 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 POINTTITLESpencer, the airSTATION REPORT · ASOS SPWTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-SPW-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (300 degrees) at 20 mph, gusting 30 mph: force 5, a fresh breeze on the Beaufort scale. The strongest gust today was 33 mph.

Plan of the wind at Spencer, north up: blowing from 300 degrees, the west northwest, at 20 miles an hour, gusting 30; beside it the Beaufort scale from calm to hurricane force, force 5, fresh breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SPWFIG. C THE WIND AT SPENCERPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 300°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE19NOW, 20 MPH6STRONG BREEZE25GUST, 30 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESpencer, the windSTATION REPORT · ASOS SPWTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-SPW-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-

Snow on the ground

Elsewhere in Iowa

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

Near Hartley

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

Near Hartley

River and lake gauges