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Little Sioux, Iowa

City in Harrison County, Iowa

Air quality

The air at Little Sioux

Index 20, good, led by ozone. Read at 10 AM from its reporting area, Pisgah (IA), 5 miles off.

20Good
  • Ozone20Good22 ppb5 mi

The days ahead

Good each day through Today, led by ozone. Yesterday measured 20, good.

Smoke, the next 45 hours

No smoke near the ground through Sun 7 AM.

FriSatSun

Precipitation

What has fallen at Little Sioux

0.44 in in the last 24 hours, 0.98 in over the last 3 days, to Fri 9 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.44in
Last 3 days
0.98in

Visibility

How far you can see at Little Sioux, the next 45 hours

Visibility stays 8 miles or more through Sun 7 AM, lowest 8 miles Sat 8 AM.

FriSatSun

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

What is measuring near here

The 6 instruments nearest Little Sioux, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.6 miles away.

measured now4 instruments

Little Sioux - I29RLSI4

Beside a road/0.6 mi away/1,030 ft/6 ft below here

temp, pavement temp, wind, visibility, precip

Rank-

Soldier River at Pisgah06608500

At a river or reservoir gauge/4.9 mi away/1,037 ft/1 ft above here

temp, wind, gust, humidity, pressure

Rank-

Citizen station WX4TAZWX4TAZ

In a volunteer observer's own ground/29.9 mi away/1,219 ft/183 ft above here

temp, humidity, wind, precip, pressure

Rank-

DenisonDNS

At an airfield/35.2 mi away/1,250 ft/214 ft above here

temp, wind, gust, visibility, precip, pressure

Rank-

measured daily2 instruments

Little Sioux 2 NWLSXI4

At a cooperative observer's station/0.6 mi away/1,030 ft/6 ft below here

snowfall, snow depth, precip, high, low

Rank-

Blencoe 5.4 SIA-HR-14

In a volunteer observer's own ground/4.9 mi away/1,029 ft/7 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Denison, drawn

The nearest airport reporting now, 35.2 mi from Little Sioux, Iowa. From its report of Oct 16, 2026, 10:55 AM local time: 3 of its 6 sheets.

The sky

Broken at 3,300 ft, broken at 3,800 ft; the ceiling is 3,300 ft; visibility 10 mi or more.

Section of the sky over Denison, height above the station to scale: broken cloud with its base at 3,300 feet, broken cloud with its base at 3,800 feet, the ceiling at 3,300 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DNSFIG. A THE SKY OVER DENISONSECTION, 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 STATION01,0002,0003,0004,0005,0006,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETBKN 3,800 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYBKN 3,300 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 3,300 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEDenison, the skySTATION REPORT · ASOS DNSTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-DNS-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

46.4 F with a dew point of 37.4 F, 71 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,100 ft up; the lowest cloud reported is at 3,300 ft.

Chart of the air at Denison: temperature 46.4 degrees Fahrenheit and dew point 37.4, 71 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,100 feet above the station, against the lowest cloud reported at 3,300 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DNSFIG. B THE AIR AT DENISONTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00020 F30 F40 F50 F60 FSATURATES 2,100 FT ABOVE THE STATION, AT 35.4 FLOWEST CLOUD REPORTED, BKN 3,300 FTTEMPERATURE 46.4 FDEW POINT 37.4 FSPREAD 9.0 FRELATIVE HUMIDITY 71 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 POINTTITLEDenison, the airSTATION REPORT · ASOS DNSTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-DNS-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north (350 degrees) at 24 mph, gusting 35 mph: force 5, a fresh breeze on the Beaufort scale. The strongest gust today was 39 mph.

Plan of the wind at Denison, north up: blowing from 350 degrees, the north, at 24 miles an hour, gusting 35; beside it the Beaufort scale from calm to hurricane force, force 5, fresh breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DNSFIG. C THE WIND AT DENISONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 350°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE19NOW, 24 MPH6STRONG BREEZE257NEAR GALE32GUST, 35 MPH8GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEDenison, the windSTATION REPORT · ASOS DNSTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-DNS-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Little Sioux 2 NW (LSXI4), 0.6 miles from here, read 16 Oct, 07:00. measured daily

Elsewhere in Iowa

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

Near Little Sioux

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

Near Little Sioux

River and lake gauges