Storm Station
Montezuma, Iowa
58°
Light rain· Feels like 58°·Light breeze 6 mph SE
Showers and thunderstorms. Cloudy, with a low around 56. Southeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
-UV
-Air quality
80%Humidity
96%Cloud

What is measuring near here

The 6 instruments nearest Montezuma, 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 now4 instruments

Grinnell (I-80)RGRI4

Beside a road/13.0 mi away/922 ft/27 ft below here

temp, pavement temp, wind, visibility, precip

Rank571of 652

GrinnellGGI

At an airfield/13.8 mi away/1,007 ft/58 ft above here

temp, wind, gust, visibility, precip, pressure

Rank209of 652

Red Rock DamRRMI4

At a dam/27.8 mi away/722 ft/227 ft below here

temp, wind, gust, humidity, pressure

Rank199of 652

Des Moines 17 E54902

At a climate reference station/39.3 mi away/903 ft/46 ft below here

temp, humidity, wind, solar, precip

Rank-

measured daily2 instruments

Montezuma 1 WMZUI4

At a cooperative observer's station/0.4 mi away/961 ft/12 ft above here

snowfall, snow depth, precip, high, low

Rank-

Montezuma 3.4 WIA-PW-3

In a volunteer observer's own ground/3.5 mi away/915 ft/34 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Grinnell, drawn

The nearest airport reporting now, 13.8 mi from Montezuma. From its report of Sep 27, 2026, 4:35 AM local time: 3 of its 6 sheets.

The sky

Overcast at 600 ft; the ceiling is 600 ft; visibility 7 mi.

Section of the sky over Grinnell, height above the station to scale: overcast cloud with its base at 600 feet, the ceiling at 600 feet, and visibility of 7 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 STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 600 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 600 FTVISIBILITY, MILES: 7 MI0510TITLEGrinnell, the skySTATION REPORT · ASOS GGITYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-GGI-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

56.0 F with a dew point of 55.8 F, 99 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 100 ft up; the lowest cloud reported is at 600 ft.

Chart of the air at Grinnell: temperature 56.0 degrees Fahrenheit and dew point 55.8, 99 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 100 feet above the station, against the lowest cloud reported at 600 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 STATION01,0002,0003,00040 F50 F60 F70 FSATURATES 100 FT ABOVE THE STATION, AT 55.7 FLOWEST CLOUD REPORTED, OVC 600 FTTEMPERATURE AND DEW POINT 56.0 F, 55.8 FRELATIVE HUMIDITY 99 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 6DATE2026-09-27IDSR-GGI-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east southeast (110 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Grinnell, north up: blowing from 110 degrees, the east southeast, at 3 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 1, light air, 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 110°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEGrinnell, the windSTATION REPORT · ASOS GGITYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-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

-in

Snow on the ground

Elsewhere in Iowa

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

Near Montezuma

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