Marshalltown Municipal Airport (KMIW) Aviation Weather, METAR, TAF & ATIS Alerts

Live aviation weather for Marshalltown Municipal Airport in Marshalltown, IA, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.

Marshalltown Municipal Airport (KMIW) is a general aviation airport serving pilots in and around Marshalltown, IA at 974 ft. KMIW reports its own METAR, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 4 runways (13, 18, 31, 36), longest 5,007 ft, are checked against the current wind in the crosswind table below. Automated weather is broadcast on 128.325. Track KMIW in the ATIS Alerts Telegram bot to get a message when a new METAR changes the picture: flight category, wind, or ceiling past your selected minimums.

VFR

Observed 0253Z (9:53 PM CDT)live · refreshes every 60s

Wind

340° 6 kt

Visibility

10+ sm

Ceiling

Unlimited

Altimeter

30.03"

Temp / Dew

57°F / 14°C

dew 53°F / 12°C

Wind from the north-northwest (340°) at 6 kt, visibility 10+ statute miles, no cloud data, temperature 14°C (57°F), altimeter 30.03 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR

METAR KMIW 130253Z AUTO 34006KT 10SM CLR 14/12 A3003 RMK AO2 SLP167 T01390117 51018

What changed at KMIW?

Since the 0153Z (8:53 PM CDT) report, compared automatically against the latest METAR.

No significant changes since the 0153Z report, conditions are holding steady.

This is exactly what ATIS Alerts watches for you: get a Telegram message when KMIW's weather changes, free →

Current pilot readout for KMIW

KMIW is currently VFR with winds from 340° at 6 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 13, about 3 knots. Density altitude is approximately 950 ft (field elevation 974 ft). KMIW does not publish a TAF. The nearest TAF station is KALO, about 35 nm away.

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

Get KMIW weather alerts in Telegram

Stop refreshing aviation weather manually. Track KMIW in ATIS Alerts and get notified when a new METAR changes the picture: a category drop, or wind and ceiling moving toward your minimums.

Track KMIW free on Telegram

Staying over at KMIW

For pilots and crews overnighting at Marshalltown Municipal Airport (KMIW).

Nearby Pilot Hotel Deals

Well-reviewed places under $500 a night near KMIW (MIW); drag to explore or tap a pin for the rate.

Affiliate disclosure: ATIS Alerts earns a commission on hotel bookings made through this section, at no extra cost to you. Rates and availability come from Stay22's booking partners (Booking.com, Expedia, Hotels.com, Vrbo and others), not from ATIS Alerts.

Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

Use this section to quickly compare current wind alignment across available runways at KMIW. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.

Runway	Length	Surface	Head / Tail	Crosswind
36FAV	2,759 ft	ASP	6 kt head	2 kt left
31	5,007 ft	ASP	5 kt head	3 kt right
13	5,007 ft	ASP	5 kt tail	3 kt left
18	2,759 ft	ASP	6 kt tail	2 kt right

Open the crosswind calculator to try your own wind and runway numbers →

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip, flight category:VFRMVFRIFRLIFRNo report

Over the last 23 h: wind 8→6 kt, ceiling unlimited → unlimited.

KMIW weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.

Live weather radar around Marshalltown Municipal Airport in Marshalltown, IA: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around KMIW is headed.

Loading…

Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap

Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.

Pilot reports (PIREPs) within 100 NM of KMIW

Reported by pilots in flight over the past 6 hours, via aviationweather.gov.

PIREP0048Z (7:48 PM CDT) · 48 NM SW of KMIW · 37,000 ft MSL · B738

Show raw report

DSM UA /OV DSM090010/TM 0048/FL370/TP B738/TB NEG

DSM UAHeader: reporting station and UA: a routine pilot report.

OV DSM090010Location: fix or navaid, optionally with a radial and distance in NM.

TM 0048Reported at 00:48 UTC.

FL370Altitude: 37,000 ft MSL.

TP B738Aircraft type reporting.

TB NEGTurbulence: none reported.

PIREP2341Z (6:41 PM CDT) · 100 NM E of KMIW · 38,000 ft MSL · B737

continuous moderate chop turbulence

Show raw report

DBQ UA /OV DBQ/TM 2341/FL380/TP B737/TB CONS MOD CHOP

DBQ UAHeader: reporting station and UA: a routine pilot report.

OV DBQLocation: fix or navaid, optionally with a radial and distance in NM.

TM 2341Reported at 23:41 UTC.

FL380Altitude: 38,000 ft MSL.

TP B737Aircraft type reporting.

TB CONS MOD CHOPTurbulence: continuous moderate chop.

PIREP2303Z (6:03 PM CDT) · 97 NM E of KMIW · 38,000 ft MSL · B738

continuous moderate turbulence

Show raw report

DBQ UA /OV DBQ180025/TM 2303/FL380/TP B738/TB CONS MOD

DBQ UAHeader: reporting station and UA: a routine pilot report.

OV DBQ180025Location: fix or navaid, optionally with a radial and distance in NM.

TM 2303Reported at 23:03 UTC.

FL380Altitude: 38,000 ft MSL.

TP B738Aircraft type reporting.

TB CONS MODTurbulence: continuous moderate.

PIREP2257Z (5:57 PM CDT) · 90 NM NE of KMIW · 39,000 ft MSL · B77L

continuous light turbulence

Show raw report

DBQ UA /OV DBQ316025/TM 2257/FL390/TP B77L/TB CONS LGT

DBQ UAHeader: reporting station and UA: a routine pilot report.

OV DBQ316025Location: fix or navaid, optionally with a radial and distance in NM.

TM 2257Reported at 22:57 UTC.

FL390Altitude: 39,000 ft MSL.

TP B77LAircraft type reporting.

TB CONS LGTTurbulence: continuous light.

PIREP2251Z (5:51 PM CDT) · 88 NM NE of KMIW · 38,000 ft MSL · B39M

moderate clear-air turbulence

Show raw report

DBQ UA /OV DBQ312025/TM 2251/FL380/TP B39M/TB MOD CAT

DBQ UAHeader: reporting station and UA: a routine pilot report.

OV DBQ312025Location: fix or navaid, optionally with a radial and distance in NM.

TM 2251Reported at 22:51 UTC.

FL380Altitude: 38,000 ft MSL.

TP B39MAircraft type reporting.

TB MOD CATTurbulence: moderate clear-air turbulence.

PIREP2155Z (4:55 PM CDT) · 30 NM SE of KMIW · 37,000 ft MSL · B763

occasional moderate chop turbulence

Show raw report

ALO UA /OV ALO180045/TM 2155/FL370/TP B763/TB OCNL MOD CHOP

ALO UAHeader: reporting station and UA: a routine pilot report.

OV ALO180045Location: fix or navaid, optionally with a radial and distance in NM.

TM 2155Reported at 21:55 UTC.

FL370Altitude: 37,000 ft MSL.

TP B763Aircraft type reporting.

TB OCNL MOD CHOPTurbulence: occasional moderate chop.

PIREP2139Z (4:39 PM CDT) · 93 NM NE of KMIW · 39,000 ft MSL · B752

continuous moderate chop turbulence

Show raw report

DEH UA /OV UKN/TM 2139/FL390/TP B752/TB CONS MOD CHOP

DEH UAHeader: reporting station and UA: a routine pilot report.

OV UKNLocation: fix or navaid, optionally with a radial and distance in NM.

TM 2139Reported at 21:39 UTC.

FL390Altitude: 39,000 ft MSL.

TP B752Aircraft type reporting.

TB CONS MOD CHOPTurbulence: continuous moderate chop.

PIREP2126Z (4:26 PM CDT) · 31 NM E of KMIW · 37,000 ft MSL · UAL336

Show raw report

ARP UAL336 4214N 09215W 2126 F370 MS53 TB MODERATE SK CLEAR IC NONE

ARP UAL336 4214N 09215W 2126…Header: reporting station and UA: a routine pilot report.

⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.

Recent aviation weather trends at KMIW

From ATIS Alerts' hourly weather history.

Over the past 24 hours, KMIW reported mostly VFR across 24 observations, with 0 flight-category changes. The strongest gust reached 21 kt, the lowest ceiling was 9,000 ft. Wind most often came from the N.

Last 24 hours

VFR 100%

Wind avg/max: 8/14 kt

Max gust: 21 kt

Lowest ceiling: 9,000 ft

Lowest vis: -

Prevailing wind: N

Category changes: 0

Last 7 days

VFR 89%MVFR 4%IFR 5%LIFR 2%

Wind avg/max: 7/17 kt

Max gust: 24 kt

Lowest ceiling: 300 ft

Lowest vis: 3 sm

Prevailing wind: SE

Category changes: 10

Most recent change: IFR → VFR

Active Runway - past 30 days

13: 34%
18: 31%
31: 24%
36: 11%

Get free ATIS alerts for KMIW

We'll message you on Telegram the moment a new METAR changes the picture at KMIW (Marshalltown Municipal Airport): flight category, wind, or ceiling past your minimums.

Track KMIW on Telegram

Free • no app to install • unsubscribe anytime

Airport facts

Reference data from the OurAirports dataset.

Type: General aviation airport
ICAO: KMIW
IATA: MIW
FAA LID: MIW
City: Marshalltown
State: Iowa
Country: United States
Elevation: 974 ft
Coordinates: 42.1127, -92.9178
Runways: 4
Longest runway: 5,007 ft
Weather reporting: Reports METAR
TAF: Nearest KALO
AWOS/ASOS: 128.325 MHz
Time zone: America/Chicago
Next sunset: 21h 8m

Run a flight school, FBO, or club here? Embed KMIW's live status on your website, free →

Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

VFRMVFRIFRLIFRNo report

Within 25 NM

7 airports

US-12655Tonner FieldBeaman, IA9 nm NE 6K7Grundy Center Municipal AirportGrundy Center, IA15 nm N 6C0Eldora AirportEldora, IA16 nm NW 53IATama AirportTama, IA18 nm SE 8C5Toledo Municipal AirportToledo, IA18 nm SE 8C6Traer Municipal AirportTraer, IA21 nm E

+1 more within 25 NM

25–50 NM

8 airports

KGGIGrinnell Regional AirportGrinnell, IA26 nm SVFR METAR KIFAIowa Falls Municipal AirportIowa Falls, IA27 nm NWVFR METAR KTNUNewton Municipal AirportNewton, IA27 nm SVFR METAR KAMWAmes Municipal AirportAmes, IA32 nm WVFR METAR KALOWaterloo Regional AirportWaterloo, IA35 nm NEVFR METAR · TAF KIKVAnkeny Regional AirportAnkeny, IA39 nm SWVFR METAR

+2 more within 50 NM

50–100 NM

8 airports

KCAVClarion Municipal AirportClarion, IA53 nm NWVFR METAR KOLZOelwein Municipal AirportOelwein, IA54 nm NEVFR METAR KCIDThe Eastern Iowa AirportCedar Rapids, IA56 nm EVFR METAR · TAF KOOAOskaloosa Municipal AirportCedar, IA57 nm SVFR METAR KPROPerry Municipal AirportPerry, IA58 nm WVFR METAR KCCYNortheast Iowa Regional AirportCharles City, IA59 nm NVFR METAR

+2 more within 100 NM

RC flying fields nearby

AMA model-aircraft club fields around this airport: live wind, crosswind & flyability on each page.

Marshalltown RC Flyers - Marshalltown Learning Academy Gym , Marshalltown, IA · 5 mi
Marshalltown RC Flyers - N 18th Ave , Marshalltown, IA · 5 mi

All RC flying fields →

See all Iowa airports →

Historical Flying Weather at KMIW

2006–2025 · ATIS Alerts Flying Weather Index

Based on historical observations from 2006–2025, KMIW reported VFR conditions during about 78.4% of valid daylight observations, with an estimated 254 VFR flying days a year. July had the most VFR weather; December had the most instrument conditions. Surface winds averaged 9.0 kt, calm 5.8% of the time.

VFR Score

Wind Score

Reliability Score

National VFR rank

#1064 of 1,400

Regional rank

#123

State rank

#32

Full historical breakdown

Daylight VFR

78.4%

MVFR

12.9%

IFR

5.5%

LIFR

3.4%

Est. VFR days/yr

254

Most VFR month

July

Fewest VFR month

December

Median ceiling

3,000 ft

Median visibility

10 sm

Calm wind

5.8%

Median wind

8 kt

Gusty hours

14.7%

Crosswind >15 kt

0.8%

Fog/mist days/yr

158

Thunderstorm days/yr

Summer density alt

2,550 ft

Flight category by month

VFRMVFRIFRLIFR

KMIW monthly flight-category distribution, 2006–2025
Month	VFR %	MVFR %	IFR %	LIFR %
Jan	61.7	20.4	10.0	8.0
Feb	72.8	15.4	6.9	4.8
Mar	73.1	15.0	7.4	4.5
Apr	78.0	14.0	5.8	2.1
May	81.5	12.0	5.0	1.5
Jun	89.3	7.2	2.5	1.0
Jul	89.4	7.0	2.2	1.4
Aug	87.0	8.3	2.7	2.0
Sep	86.9	7.9	3.4	1.8
Oct	82.5	11.6	3.9	1.9
Nov	75.3	15.3	5.8	3.6
Dec	60.9	20.3	10.7	8.0

Average wind by month

KMIW average wind by month, 2006–2025
Month	Mean wind (kt)
Jan	10.1 kt
Feb	10.2 kt
Mar	10.5 kt
Apr	11.4 kt
May	9.7 kt
Jun	8.1 kt
Jul	6.2 kt
Aug	6.0 kt
Sep	7.2 kt
Oct	8.9 kt
Nov	9.8 kt
Dec	9.7 kt

Central Plains flying weather Most VFR airports Windiest airports Flying Weather Index

Historical summary of past observations: not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.

KMIW weather: frequently asked

What runways are available at KMIW?+

KMIW has 4 runways: 13, 18, 31, 36; the longest is 5,007 ft. This page computes the live crosswind for each runway end from the current wind.

Does KMIW report its own weather?+

Yes. Marshalltown Municipal Airport has its own weather station and publishes METAR observations, which this page decodes live.

Does KMIW have a TAF?+

No. KMIW does not publish its own TAF. The nearest TAF station is KALO, about 35 nm away.

Does KMIW broadcast D-ATIS?+

No. KMIW does not broadcast D-ATIS. Alerts for KMIW from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR instead.

Pilot PIREPs for Marshalltown Municipal Airport (KMIW)

Community-submitted

Community-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.

Read recent community-submitted pilot notes for Marshalltown Municipal Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.

⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.

No Pilot PIREPs have been submitted for KMIW yet. Recently flew here? Help the next pilot by leaving a quick airport note.

Pilot PIREPs are community pilot notes for situational awareness only, not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.

From the ATIS Alerts team

Why pilots use ATIS Alerts

Free aviation weather and ATIS change alerts for GA pilots, delivered on Telegram, so a change catches your eye before it catches you off guard.

Get pinged the moment KMIW drops below VFR or a new report moves your numbers.
Live METAR, TAF, crosswinds, and FAA delays: one link, always current.
Free, no app to install, and you can track any US airport. Unsubscribe anytime.

Get free alerts for KMIW →

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

No D-ATIS at this airport, showing METAR.

Spotted incorrect airport info? ✏️ Suggest an edit

How ATIS Alerts works · All US airports · Iowa airports

Get free alerts for KMIW