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Colfax, Iowa

City in Jasper County, Iowa

Air quality

The air at Colfax

Index 24, good, led by fine particles. Read at 1 AM from its reporting area, Des Moines (IA), 24 miles off.

24Good
  • Fine particles (PM2.5)24Good-
  • Ozone17Good19 ppb21.3 mi

The days ahead

Good each day through Sat Oct 17, led by fine particles. Yesterday measured 13, good.

Smoke, the next 43 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Colfax

0.44 in in the last 24 hours, and none in the 2 days before, to Fri 12 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.44in
Last 3 days
0.44in

Visibility

How far you can see at Colfax, the next 43 hours

Visibility stays 7 miles or more through Sat 7 PM, lowest 8 miles Sat 2 AM.

FriSat

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

What is measuring near here

The 8 instruments nearest Colfax, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.4 miles away.

measured now6 instruments

Newton MuniTNU

At an airfield/11.6 mi away/942 ft/99 ft above here

temp, wind, gust, visibility, precip, pressure

Rank13of 1,060

AmesS2031

At a soil climate station/33.3 mi away/1,073 ft/230 ft above here

temp, humidity, soil temp, soil moisture

Rank748of 1,060

measured daily2 instruments

Colfax 0.2 NIA-JS-1

In a volunteer observer's own ground/0.4 mi away/863 ft/20 ft above here

precip, snowfall, snow depth

Rank-

HartfordHRFI4

At a cooperative observer's station/16.5 mi away/840 ft/3 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Newton Muni, drawn

The nearest airport reporting now, 11.6 mi from Colfax, Iowa. From its report of Oct 16, 2026, 1:15 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 1,800 ft; visibility 10 mi or more.

Section of the sky over Newton Muni, height above the station to scale: a few clouds cloud with its base at 1,800 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT TNUFIG. A THE SKY OVER NEWTON 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 SHEETFEW 1,800 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYVISIBILITY, MILES: 10 MI OR MORE0510TITLENewton Muni, the skySTATION REPORT · ASOS TNUTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-TNU-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 46.4 F, 100 per cent relative humidity. The air is saturated at the ground; the lowest cloud reported is at 1,800 ft.

Chart of the air at Newton Muni: temperature 46.4 degrees Fahrenheit and dew point 46.4, 100 per cent relative humidity; the air saturated at the ground, against the lowest cloud reported at 1,800 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT TNUFIG. B THE AIR AT NEWTON 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 STATION01,0002,0003,00040 F50 F60 FSATURATED AT THE GROUNDLOWEST CLOUD REPORTED, FEW 1,800 FTTEMPERATURE AND DEW POINT 46.4 F, 46.4 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 POINTTITLENewton Muni, the airSTATION REPORT · ASOS TNUTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-TNU-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 10 mph, gusting 18 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 20 mph.

Plan of the wind at Newton Muni, north up: blowing from 290 degrees, the west northwest, at 10 miles an hour, gusting 18; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT TNUFIG. C THE WIND AT NEWTON MUNIPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 10 MPH4MODERATE BREEZE13GUST, 18 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLENewton Muni, the windSTATION REPORT · ASOS TNUTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-TNU-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Hartford (HRFI4), 16.5 miles from here, read 13 Oct, 07:50. measured daily

Elsewhere in Iowa

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

Near Colfax

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

Near Colfax

River and lake gauges