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Fort Madison, Iowa

City in Lee County, Iowa

Air quality

The air at Fort Madison

Index 16, good, led by ozone. Read at 11 PM from its reporting area, Lake Sugema (IA), 35 miles off.

16Good
  • Fine particles (PM2.5)7Good-
  • Ozone16Good-

The days ahead

Highest 55, moderate, today, led by fine particles. Yesterday measured 28, good.

Smoke, the next 45 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Fort Madison

0.37 in in the last 24 hours, 0.96 in over the last 3 days, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.37in
Last 3 days
0.96in

Visibility

How far you can see at Fort Madison, the next 45 hours

Visibility stays 9 miles or more through Sat 7 PM, lowest 9 miles Sat 8 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Fort Madison, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.0 miles away.

measured now4 instruments

ArgyleRARI4

Beside a road/16.9 mi away/518 ft/26 ft below here

temp, pavement temp, wind, visibility, precip

Rank637of 1,060

measured daily2 instruments

Fort Madison 1.5 NWIA-LE-22

In a volunteer observer's own ground/1.9 mi away/686 ft/142 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Fort Madison, drawn

The nearest airport reporting now, 2.1 mi from Fort Madison, Iowa. From its report of Oct 15, 2026, 11:15 PM local time: 3 of its 6 sheets.

The sky

Overcast at 2,300 ft; the ceiling is 2,300 ft; visibility 10 mi or more.

Section of the sky over Fort Madison, height above the station to scale: overcast cloud with its base at 2,300 feet, the ceiling at 2,300 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FSWFIG. A THE SKY OVER FORT MADISONSECTION, 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 STATION05001,0001,5002,0002,5003,0003,500ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 2,300 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 2,300 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEFort Madison, the skySTATION REPORT · ASOS FSWTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-FSW-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

53.6 F with a dew point of 48.2 F, 82 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,200 ft up; the lowest cloud reported is at 2,300 ft.

Chart of the air at Fort Madison: temperature 53.6 degrees Fahrenheit and dew point 48.2, 82 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,200 feet above the station, against the lowest cloud reported at 2,300 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FSWFIG. B THE AIR AT FORT MADISONTHE 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 FSATURATES 1,200 FT ABOVE THE STATION, AT 47.0 FLOWEST CLOUD REPORTED, OVC 2,300 FTTEMPERATURE 53.6 FDEW POINT 48.2 FSPREAD 5.4 FRELATIVE HUMIDITY 82 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 POINTTITLEFort Madison, the airSTATION REPORT · ASOS FSWTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-FSW-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (290 degrees) at 15 mph, gusting 25 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 31 mph.

Plan of the wind at Fort Madison, north up: blowing from 290 degrees, the west northwest, at 15 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 FSWFIG. C THE WIND AT FORT MADISONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 15 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 25 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEFort Madison, the windSTATION REPORT · ASOS FSWTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-FSW-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Fort Madison (FTMI4), 1.0 miles from here, read 14 Oct, 23:59. measured daily

Elsewhere in Iowa

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

Near Fort Madison

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

Near Fort Madison

River and lake gauges