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Williams, Iowa

City in Hamilton County, Iowa

Air quality

The air at Williams

Index 32, good, led by fine particles. Read at 1 PM from its reporting area, Waterloo (IA), 58 miles off.

32Good
  • Fine particles (PM2.5)32Good-

The days ahead

Good each day through Today, led by ozone. Yesterday measured 21, good.

Smoke, the next 43 hours

No smoke near the ground through Sun 7 AM.

FriSatSun

Precipitation

What has fallen at Williams

0.53 in in the last 24 hours, 1.15 in over the last 3 days, to Fri 12 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.53in
Last 3 days
1.15in

Visibility

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

Visibility stays 7 miles or more through Sun 7 AM, lowest 8 miles Sat 4 AM.

FriSatSun

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

What is measuring near here

The 7 instruments nearest Williams, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 5.6 miles away.

measured now5 instruments

WilliamsRWMI4

Beside a road/5.6 mi away/1,197 ft/14 ft below here

temp, pavement temp, wind, visibility, precip

Rank604of 1,060

Iowa FallsIFA

At an airfield/14.2 mi away/1,137 ft/74 ft below here

temp, wind, gust, visibility, precip, pressure

Rank188of 1,060

Ames ScanAMMI4

At a river or reservoir gauge/34.0 mi away/1,073 ft/138 ft below here

temp, wind, gust, humidity, pressure

Rank720of 1,060

AmesS2031

At a soil climate station/34.9 mi away/1,073 ft/138 ft below here

temp, humidity, soil temp, soil moisture

Rank748of 1,060

measured daily2 instruments

Dows 1.4 WNWIA-WG-4

In a volunteer observer's own ground/12.2 mi away/1,184 ft/27 ft below here

precip, snowfall, snow depth

Rank-

Webster CityWEBI4

At a cooperative observer's station/13.2 mi away/1,070 ft/141 ft below here

snowfall, snow depth, precip, high, low

Rank672of 1,060

Station report

The weather at Iowa Falls, drawn

The nearest airport reporting now, 14.2 mi from Williams, Iowa. From its report of Oct 16, 2026, 12:55 PM local time: 3 of its 6 sheets.

The sky

Broken at 2,600 ft, overcast at 3,200 ft; the ceiling is 2,600 ft; visibility 10 mi or more.

Section of the sky over Iowa Falls, height above the station to scale: broken cloud with its base at 2,600 feet, overcast cloud with its base at 3,200 feet, the ceiling at 2,600 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT IFAFIG. A THE SKY OVER IOWA FALLSSECTION, 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 3,200 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 2,600 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 2,600 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEIowa Falls, the skySTATION REPORT · ASOS IFATYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-IFA-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

48.2 F with a dew point of 39.2 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 2,600 ft.

Chart of the air at Iowa Falls: temperature 48.2 degrees Fahrenheit and dew point 39.2, 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 2,600 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT IFAFIG. B THE AIR AT IOWA FALLSTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00030 F40 F50 F60 FSATURATES 2,100 FT ABOVE THE STATION, AT 37.2 FLOWEST CLOUD REPORTED, BKN 2,600 FTTEMPERATURE 48.2 FDEW POINT 39.2 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 POINTTITLEIowa Falls, the airSTATION REPORT · ASOS IFATYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-IFA-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (330 degrees) at 21 mph, gusting 29 mph: force 5, a fresh breeze on the Beaufort scale. The strongest gust today was 41 mph.

Plan of the wind at Iowa Falls, north up: blowing from 330 degrees, the north northwest, at 21 miles an hour, gusting 29; beside it the Beaufort scale from calm to hurricane force, force 5, fresh breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT IFAFIG. C THE WIND AT IOWA FALLSPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 330°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE19NOW, 21 MPH6STRONG BREEZE25GUST, 29 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEIowa Falls, the windSTATION REPORT · ASOS IFATYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-IFA-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Webster City (WEBI4), 13.2 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 Williams

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

Near Williams

River and lake gauges