KMIW/MIW METAR Marshalltown Municipal Airport

Marshalltown, IowaElevation 974 ftSmall airport

CURRENT STATUS

VFR40 min old

No ceiling, visibility 10 SM.

FLIGHT CATEGORY

VFR

ceiling & visibility

WIND

350@4

steady

VISIBILITY

10 SM

16.1 km

CEILING

None

no BKN/OVC layer

DENSITY ALT

1,417 ft

+443 ft vs field

CURRENT METAR

Decoded observation

Observed 2153Z (4:53 PM local) · 40 min old

KMIW is currently VFR. Winds are from the north at 4 knots. Visibility is 10 statute miles. There is no ceiling.

WIND

350° at 4 kt

Steady.

VISIBILITY

10 statute miles

16.1 km, good.

CEILING & SKY

CLR

FEW and SCT layers are not ceilings.

TEMP / DEWPOINT

20°C / 12°C

68°F / 54°F. 8°C spread.

ALTIMETER

30.30 inHg

1026.1 hPa, above standard.

WEATHER & HAZARDS

No significant hazards

No precipitation or obscuration reported.

Codes in this report: AUTO CLR RMK AO2

Hover or tap any group for a plain-English explanation.

REMARKS: DECODED

AO2

automated station with a precipitation discriminator (can tell rain from snow)

SLP261

sea-level pressure 1026.1 hPa

T02000122

precise temperature 20.0°C, dew point 12.2°C

FAA: no delays reported at MIW.

Source: FAA System Operations (ASWS). Operational status only; verify with official FAA sources and NOTAMs.

SUGGESTED RISK · TRAINING USE

Suggested risk level: Low

›No TAF available for this airport.

A suggested risk level for training and situational awareness only, not a go/no-go authority. Verify with official sources and apply your personal minimums.

FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

Current aviation conditions show flight category VFR, wind from 350° at 4 kt, visibility 10 SM, ceiling none. Forecast suggests this afternoon partly sunny, high near 73F, low near 49F, 2% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES

Thunderstorms in the forecastWeather.gov

Thursday: Showers And Thunderstorms Likely. Watch for developing convection and plan alternates.

Day	Conditions	Temp F	Wind	Gusts	Precip	Pilot note
This Afternoon	Partly Sunny	73/49	N 3 kt	–	2%
Monday	Mostly Cloudy	68/52	ENE 7 kt	–	7%
Tuesday	Mostly Cloudy	71/54	SSE 9 kt	–	18%
Wednesday	Slight Chance Rain Showers	75/56	S 10 kt	–	65%
Thursday	Showers And Thunderstorms Likely	73/55	S 4 kt	–	65%	Thunderstorms in the forecast
Friday	Chance Showers And Thunderstorms	74/56	SE 8 kt	–	53%
Saturday	Rain Showers Likely	69/53	SSE 7 kt	–	62%

Source: National Weather Service (office DMX). Forecast issued 2232Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND

2 runways · crosswind ranking

ON-FIELD METAR

READING THE BARB · SWIPE FOR MORE →

Calm

5 kt

10 kt

15 kt

20 kt

25 kt

30 kt

35 kt

40 kt

45 kt

50 kt

65 kt

75 kt

100 kt

105 kt

Half feather = 5 kt, full = 10 kt, filled pennant = 50 kt; add them up. The staff points the direction the wind blows from.

WIND USED

350° at 4 kt

Components computed from the current on-field METAR wind.

RECOMMENDED

RWY 364 kt headwind · 1 kt crosswind

RUNWAYS BY WIND · best end

HEAD

4 kt

CROSS

1 kt L

BEST

HEAD

3 kt

CROSS

3 kt R

HEAD

3 kt tail

CROSS

3 kt L

HEAD

4 kt tail

CROSS

1 kt R

Components are estimates from the current METAR wind and runway heading. Verify with the Chart Supplement and NOTAMs.

RUNWAYS

Runway detail & declared distances

2 runways · longest 5,007 ft

13/31

Dimensions

5,007 x 100 ft

Surface

Asphalt (fair)

Edge lights

MED

RWY 13127°T

REILYes

VGSIVASI (V4L)

Traffic patternLeft

RWY 31307°T

REILYes

VGSIVASI (V4L)

Traffic patternLeft

18/36

Dimensions

2,759 x 50 ft

Surface

Asphalt (fair)

Edge lights

MED

RWY 18184°T

Traffic patternLeft

RWY 364°T

Traffic patternLeft

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Performance & density altitude

Density altitude

1,417 ft

Pressure altitude

594 ft

Field elevation

974 ft MSL

Temperature

20°C (68°F)

Dewpoint

12°C (54°F)

Altimeter

30.30 inHg

Density altitude estimates how the aircraft performs versus standard atmosphere. Higher density altitude reduces climb performance and increases takeoff distance.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset

2315Z 6:15 PM

Sunrise

1236Z 7:36 AM

Loggable night

2343Z (6:43 PM local) → 1208Z (7:08 AM local)

end of evening to start of morning civil twilight

Position lights required

2315Z (6:15 PM local) → 1236Z (7:36 AM local)

sunset to sunrise (91.209)

Night passenger currency

0015Z (7:15 PM local) → 1136Z (6:36 AM local)

1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

Marshalltown Municipal Airport is in Marshalltown, Iowa. Field elevation 974 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT

OwnershipPublicly owned

UseOpen to the public

TypeSmall airport

ManagerSTEPHEN VALBRACHT

Manager phone641-752-0012

AttendedDaily, 0800–1700

CHARTS & AIRSPACE

ICAO / IATAKMIW / MIW

SectionalCHICAGO

Center (ARTCC)CHICAGO

Flight service (AFSS)FORT DODGE

RegionIowa

CountryUnited States

Coordinates42.1127, -92.9178

Distance from city3 NM N

SERVICES & LIGHTING

Fuel100LL · Jet A

Control towerNon-towered

Field lightingSee remarks

BeaconSunset to sunrise · White-green (lighted land airport)

CTAF122.800

UNICOM122.800

FREQUENCIES

Communications

120.9

WATERLOO APP/DEP

A/D

128.325

ASOS

120.9

WATERLOO CLNC DEL

CLD

122.8

CTAF/UNICOM

UNIC

122.800

CTAF

122.800

UNICOM

Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.

AIRCRAFT ACTIVITY

KMIW traffic patterns

2026-06-20 to 2026-10-22, 14 days observed · data 2026-10-23

Low confidence

TRAFFIC VOLUME (30-DAY)

AVG LANDINGS/DAY

AVG OPS/DAY

2.3

Operations trend (3 days)

Busiest day: Thu · Busiest month: Jul

FLEET MIX

Piston single 63%Helicopter 18%Unknown 10%Jet 6%Turboprop 3%

Mostly small piston aircraft.

TOP AIRCRAFT TYPES

›H60 (Helicopter) · ~2 landings/mo

›BE35 (Piston single) · ~1 landings/mo

›C172 (Piston single) · ~1 landings/mo

›C182 (Piston single) · ~1 landings/mo

›LEG2 (Piston single) · ~1 landings/mo

LIKELY BASED AIRCRAFT

Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly single-engine piston aircraft.

›WAIX (Piston single)

›H60 (Helicopter)

This is an estimate based on repeated flight patterns, not registration data. Do not rely on it to identify specific aircraft or owners.

Data limitations (4)

›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.

›Some aircraft do not transmit usable ADS-B and are not counted.

›Aircraft types and based estimates are inferred and may be wrong.

›This is not official ATC, FAA, or airport data.

NEARBY AIRPORTS

Weather reference stations

Current flight category at nearby reporting stations.

KIFA Iowa Falls Municipal Airport

27 NM NW

VFR

KTNU Newton Municipal Airport

27 NM S

VFR

KAMW Ames Municipal Airport

32 NM W

VFR

KALO Waterloo Regional Airport

35 NM NE

VFR

KHPT Hampton Municipal Airport

39 NM N

VFR

KBNW Boone Municipal Airport

42 NM W

MVFR

AIRPORT REMARKS

Operational remarks

›FOR ARPT ATTENDANT AFTER HRS CALL 641-521-6832.

›FOR CD CTC DES MOINES APCH ON FREQ 120.9. WHEN DES MOINES APCH CLSD, FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.

›STEVE

›CROPS

›ACTVT MIRL RY 13/31 & RY 18/36; REIL & VASI RYS 13 & 31 - CTAF.

OFFICIAL LINKS & SOURCES

↗Official METAR on AviationWeather.gov

↗Search NOTAMs (official FAA NOTAM Search)

↗KMIW on OurAirports

FREQUENTLY ASKED

Does KMIW have a METAR?

Yes. KMIW has a current METAR observation, decoded into plain English on this page.

Does KMIW have a TAF?

When KMIW issues a TAF, its decoded forecast timeline loads live on this page; otherwise use the nearest TAF-issuing field as a planning reference.

What is the field elevation at KMIW?

KMIW sits at 974 ft MSL, which factors into the density-altitude estimate on this page.

Is this an official preflight weather briefing for KMIW?

No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.

This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.