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Gilman, Iowa

City in Marshall County, Iowa

Air quality

The air at Gilman

Index 28, good, led by fine particles. Read at 11 AM from its reporting area, Waterloo (IA), 47 miles off.

28Good
  • Fine particles (PM2.5)28Good-

The days ahead

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

Smoke, the next 45 hours

No smoke near the ground through Sun 7 AM.

FriSatSun

Precipitation

What has fallen at Gilman

0.28 in in the last 24 hours, 0.47 in over the last 3 days, to Fri 10 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.28in
Last 3 days
0.47in

Visibility

How far you can see at Gilman, the next 45 hours

Visibility stays 6 miles or more through Sun 7 AM, lowest 6 miles Sat 8 AM.

FriSatSun

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

What is measuring near here

The 7 instruments nearest Gilman, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 7.1 miles away.

measured now5 instruments

GrinnellGGI

At an airfield/12.1 mi away/1,007 ft/21 ft below here

temp, wind, gust, visibility, precip, pressure

Rank7of 1,060

measured daily2 instruments

Laurel 0.3 NWIA-MS-8

In a volunteer observer's own ground/7.1 mi away/1,014 ft/14 ft below here

precip, snowfall, snow depth

Rank-

Grinnell 3 SWGRII4

At a cooperative observer's station/11.6 mi away/974 ft/54 ft below here

snowfall, snow depth, precip, high, low

Rank29of 1,060

Station report

The weather at Grinnell, drawn

The nearest airport reporting now, 12.1 mi from Gilman, Iowa. From its report of Oct 16, 2026, 11:15 AM local time: 3 of its 6 sheets.

The sky

Broken at 1,300 ft, broken at 2,100 ft, overcast at 2,600 ft; the ceiling is 1,300 ft; visibility 5 mi.

Section of the sky over Grinnell, height above the station to scale: broken cloud with its base at 1,300 feet, broken cloud with its base at 2,100 feet, overcast cloud with its base at 2,600 feet, the ceiling at 1,300 feet, and visibility of 5 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GGIFIG. A THE SKY OVER GRINNELLSECTION, 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 STATION05001,0001,5002,0002,5003,0003,5004,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 2,600 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 2,100 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYBKN 1,300 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 1,300 FTVISIBILITY, MILES: 5 MI0510TITLEGrinnell, the skySTATION REPORT · ASOS GGITYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-GGI-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

47.3 F with a dew point of 44.2 F, 89 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 700 ft up; the lowest cloud reported is at 1,300 ft.

Chart of the air at Grinnell: temperature 47.3 degrees Fahrenheit and dew point 44.2, 89 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 700 feet above the station, against the lowest cloud reported at 1,300 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GGIFIG. B THE AIR AT GRINNELLTHE 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 700 FT ABOVE THE STATION, AT 43.5 FLOWEST CLOUD REPORTED, BKN 1,300 FTTEMPERATURE 47.3 FDEW POINT 44.2 FSPREAD 3.1 FRELATIVE HUMIDITY 89 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 POINTTITLEGrinnell, the airSTATION REPORT · ASOS GGITYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-GGI-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (320 degrees) at 14 mph, gusting 25 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 33 mph.

Plan of the wind at Grinnell, north up: blowing from 320 degrees, the northwest, at 14 miles an hour, gusting 25; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GGIFIG. C THE WIND AT GRINNELLPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 320°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 14 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 25 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEGrinnell, the windSTATION REPORT · ASOS GGITYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-GGI-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Grinnell, 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 Gilman

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

Near Gilman

River and lake gauges