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Onslow, Iowa

City in Jones County, Iowa

Air quality

The air at Onslow

Index 22, good, led by fine particles. Read at 2 AM from its reporting area, Iowa City (IA), 42 miles off.

22Good
  • Fine particles (PM2.5)22Good-

The days ahead

Good each day through Today, led by ozone. Yesterday measured 26, good.

Smoke, the next 41 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Onslow

0.23 in in the last 24 hours, 0.25 in over the last 3 days, to Fri 1 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.23in
Last 3 days
0.25in

Visibility

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

Visibility stays 8 miles or more through Sat 7 PM, lowest 8 miles Sat 5 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Onslow, 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 now4 instruments

measured daily2 instruments

Onslow 0.1 NEIA-JN-1

In a volunteer observer's own ground/0.1 mi away/922 ft/3 ft above here

precip, snowfall, snow depth

Rank-

MonticelloMCLI4

At a cooperative observer's station/12.6 mi away/812 ft/107 ft below here

snowfall, snow depth, precip, high, low

Rank94of 1,060

Station report

The weather at Monticello Muni, drawn

The nearest airport reporting now, 10.8 mi from Onslow, Iowa. From its report of Oct 16, 2026, 2:55 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 Monticello Muni, 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 MXOFIG. A THE SKY OVER MONTICELLO MUNISECTION, 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 MORE0510TITLEMonticello Muni, the skySTATION REPORT · ASOS MXOTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MXO-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

46.4 F with a dew point of 42.8 F, 87 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 800 ft up.

Chart of the air at Monticello Muni: temperature 46.4 degrees Fahrenheit and dew point 42.8, 87 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 800 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MXOFIG. B THE AIR AT MONTICELLO MUNITHE 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 F60 FSATURATES 800 FT ABOVE THE STATION, AT 42.0 FTEMPERATURE 46.4 FDEW POINT 42.8 FSPREAD 3.6 FRELATIVE HUMIDITY 87 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 POINTTITLEMonticello Muni, the airSTATION REPORT · ASOS MXOTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MXO-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (290 degrees) at 13 mph, gusting 21 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 28 mph.

Plan of the wind at Monticello Muni, north up: blowing from 290 degrees, the west northwest, at 13 miles an hour, gusting 21; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MXOFIG. C THE WIND AT MONTICELLO MUNIPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 13 MPH5FRESH BREEZE19GUST, 21 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMonticello Muni, the windSTATION REPORT · ASOS MXOTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MXO-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Iowa

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

Near Onslow

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

Near Onslow

River and lake gauges