Storm Station
Green Mountain, Iowa
59°
Rain· Feels like 59°·Light breeze 7 mph SE
A chance of drizzle before 4pm. Cloudy, with a high near 66. Southeast wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
-UV
-Air quality
84%Humidity
90%Cloud

What is measuring near here

The 4 instruments nearest Green Mountain, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.9 miles away.

measured now2 instruments

MarshalltownMIW

At an airfield/4.9 mi away/974 ft/13 ft below here

temp, wind, gust, visibility, precip, pressure

Rank6of 652

Marshalltown (US 30)RMTI4

Beside a road/9.9 mi away/955 ft/32 ft below here

temp, pavement temp, wind, visibility, precip

Rank650of 652

measured daily2 instruments

MarshalltownMSHI4

At a cooperative observer's station/6.3 mi away/899 ft/88 ft below here

snowfall, snow depth, precip, high, low

Rank-

Marshalltown 0.2 WSWIA-MS-7

In a volunteer observer's own ground/6.8 mi away/909 ft/78 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Marshalltown, drawn

The nearest airport reporting now, 4.9 mi from Green Mountain. From its report of Sep 27, 2026, 6:53 AM local time: 3 of its 6 sheets.

The sky

Broken at 300 ft, overcast at 4,600 ft; the ceiling is 300 ft; visibility 5 mi.

Section of the sky over Marshalltown, height above the station to scale: broken cloud with its base at 300 feet, overcast cloud with its base at 4,600 feet, the ceiling at 300 feet, and visibility of 5 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MIWFIG. A THE SKY OVER MARSHALLTOWNSECTION, 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 STATION01,0002,0003,0004,0005,0006,0007,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 4,600 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 300 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 300 FTVISIBILITY, MILES: 5 MI0510TITLEMarshalltown, the skySTATION REPORT · ASOS MIWTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-MIW-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

57.0 F with a dew point of 57.0 F, 100 per cent relative humidity. The air is saturated at the ground; the lowest cloud reported is at 300 ft.

Chart of the air at Marshalltown: temperature 57.0 degrees Fahrenheit and dew point 57.0, 100 per cent relative humidity; the air saturated at the ground, against the lowest cloud reported at 300 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MIWFIG. B THE AIR AT MARSHALLTOWNTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00050 F60 F70 FSATURATED AT THE GROUNDLOWEST CLOUD REPORTED, BKN 300 FTTEMPERATURE AND DEW POINT 57.0 F, 57.0 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 POINTTITLEMarshalltown, the airSTATION REPORT · ASOS MIWTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-MIW-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east southeast (120 degrees) at 8 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Marshalltown, north up: blowing from 120 degrees, the east southeast, at 8 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MIWFIG. C THE WIND AT MARSHALLTOWNPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 120°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 8 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMarshalltown, the windSTATION REPORT · ASOS MIWTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-MIW-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Marshalltown, 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 Green Mountain

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