Storm Station
Martinsburg, Iowa
60°
Overcast· Feels like 60°·Light air 3 mph SE
Rain showers. Cloudy, with a low around 57. Southeast wind around 5 mph. Chance of precipitation is 80%.
-UV
-Air quality
81%Humidity
89%Cloud

What is measuring near here

The 5 instruments nearest Martinsburg, 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 now3 instruments

Sigourney (IA 92)RSGI4

Beside a road/11.4 mi away/663 ft/148 ft below here

temp, pavement temp, wind, visibility, precip

Rank573of 652

OttumwaOTM

At an airfield/11.4 mi away/846 ft/35 ft above here

temp, wind, gust, visibility, precip, pressure

Rank-

Mount Pleasant 1 SSW [CCOOP]MPZI4

At a river or reservoir gauge/39.8 mi away/719 ft/92 ft below here

temp, wind, gust, humidity, pressure

Rank523of 652

measured daily2 instruments

Hedrick 4.0 ENEIA-KK-4

In a volunteer observer's own ground/1.0 mi away/808 ft/3 ft below here

precip, snowfall, snow depth

Rank-

SigourneySGYI4

At a cooperative observer's station/11.0 mi away/784 ft/27 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Sigourney (IA 92), drawn

The nearest instrument reporting now, 11.4 mi from Martinsburg. From its report of Sep 27, 2026, 4:20 AM local time: 3 of its 5 sheets.

The air

57.6 F with a dew point of 57.2 F, 99 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 100 ft up.

Chart of the air at Sigourney (IA 92): temperature 57.6 degrees Fahrenheit and dew point 57.2, 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; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RSGI4FIG. B THE AIR AT SIGOURNEY (IA 92)THE 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 FSATURATES 100 FT ABOVE THE STATION, AT 57.1 FTEMPERATURE AND DEW POINT 57.6 F, 57.2 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 POINTTITLESigourney (IA 92), the airSTATION REPORT · RWIS RSGI4TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-09-27IDSR-RSGI4-1DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Sigourney (IA 92), north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RSGI4FIG. C THE WIND AT SIGOURNEY (IA 92)PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESigourney (IA 92), the windSTATION REPORT · RWIS RSGI4TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-09-27IDSR-RSGI4-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 663 ft above sea level, 2 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.21 inHg and the temperature at 56.6 F; it reports 57.6 F, 1.0 F warmer than standard.

Section from sea level of where Sigourney (IA 92) stands in the atmosphere, height to scale: the station 663 feet above sea level with 2 per cent of the air below it; the standard atmosphere's pressure there, 29.21 inches of mercury, and temperature, 56.6 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RSGI4FIG. D WHERE SIGOURNEY (IA 92) STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHERESIGOURNEY (IA 92)2 PER CENT OF THE AIR BELOW IT663 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE29.21 inHgSTANDARD TEMPERATURE HERE56.6 FTEMPERATURE, REPORTED57.6 FTITLESigourney (IA 92), the columnSTATION REPORT · RWIS RSGI4TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-09-27IDSR-RSGI4-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Sigourney (IA 92), in 5 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Sigourney (SGYI4), 11.0 miles from here, read 26 Sep, 06:00. measured daily

Elsewhere in Iowa

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

Near Martinsburg

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