Marshalltown Municipal Airport (KMIW) Aviation Weather: METAR
As of 8:53 AM CDT, Oct 28, KMIW is currently VFR with winds from 150° at 7 knots, visibility 10+ statute miles, and a 11,000 ft ceiling.
Live aviation weather for Marshalltown Municipal Airport in Marshalltown, IA, including METAR, flight category, wind, visibility, ceiling, altimeter and runway crosswinds.
Marshalltown Municipal Airport (KMIW) is a general aviation airport serving pilots in and around Marshalltown, IA at a field elevation of 975 ft. KMIW reports its own METAR, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. It has 2 physical runways (13/31, 18/36), the longest 5,007 ft. Automated weather is broadcast on 128.325.
Wind from the south-southeast (150°) at 7 kt, visibility 10+ statute miles, a few clouds at 5,000 ft, scattered clouds at 8,000 ft, broken clouds at 11,000 ft, temperature 13°C (56°F), altimeter 30.08 inHg. Conditions are Visual Flight Rules (VFR), ceiling 11,000 ft.
METAR KMIW 281353Z AUTO 15007KT 10SM FEW050 SCT080 BKN110 13/11 A3008 RMK AO2 SLP186 T01330106
What changed at KMIW?
Since the 1253Z (7:53 AM CDT) report, compared automatically against the latest METAR.
- A ceiling formed at 11,000 ft.
Current pilot readout for KMIW
KMIW is currently VFR with winds from 150° at 7 knots, visibility 10+ statute miles, and a 11,000 ft ceiling. the wind favors runway ends 13, 18. Density altitude is approximately 800 ft (field elevation 975 ft). KMIW does not publish a TAF. The nearest TAF station is KALO, about 35 nm away.
KMIW by the numbers
What the long-run records say about flying here, computed for this airport alone.
KMIW reported VFR in 78% of daylight observations over 20 years, about 254 flyable days a year. July is the most reliable month and December the least, with IFR or worse 19% of the time. When conditions drop it is usually a mix of low ceilings (under 1,000 ft 6% of hours) and low visibility (under 3 miles 5%).
Over 20 years of hourly winds, runway 31 had the best headwind 30% of the time, runway 13 28%, and winds were calm 7% of hours. Winds most often blow from the south. Crosswind on the best available runway topped 15 kt in 1% of hours.
Snow fell on about 39 days a year and freezing rain or drizzle on 5. From December to February KMIW was IFR or worse 16% of the time, against 4% from June to August.
Thunderstorms were reported on about 47 days a year. 54% of storm hours fall in June, July and August, peaking in June when storms were in the air 2% of the time.
Field elevation is 975 ft, but on a median summer afternoon the air performs like 2,550 ft, 1,575 ft higher. Plan for a longer takeoff roll and a weaker climb from June to August.
Gusts showed up in 15% of hours, typically 8 kt above the steady wind, and the strongest credible gust on record was 81 kt. April is the windiest month (mean 11 kt) and August the calmest.
Sources: hourly observations 2006 to 2025 and the per-runway wind climatology 2006 to 2025. Historical summaries, not a forecast: check the current METAR, TAF and a briefing before flight.
New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →
Runway wind check
Estimated head/tailwind and crosswind for each runway end from the current reported wind.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 13FAV | 5,007 ft | ASP | 6 kt head | 3 kt right |
| 18 | 2,759 ft | ASP | 6 kt head | 4 kt left |
| 31 | 5,007 ft | ASP | 6 kt tail | 3 kt left |
| 36 | 2,759 ft | ASP | 6 kt tail | 4 kt right |
Open the crosswind calculator to try your own wind and runway numbers →
KMIW runways
2 physical runways · 4 runway ends. Each card opens the runway's intelligence page: equipment and lighting, LAHSO, frequencies, today's configuration, predicted use, history and approaches.
- Status not monitoredRunway 13/315,007 × 100 ft · ASPCurrent useno stated-runway source at KMIWWind
- 13
- 6 kt headwind · 3 kt crosswind from right
- 31
- 6 kt tailwind · 3 kt crosswind from left
no active equipment NOTAM receivedView Runway Intelligence → - Status not monitoredRunway 18/362,759 × 50 ft · ASPCurrent useno stated-runway source at KMIWWind
- 18
- 6 kt headwind · 4 kt crosswind from left
- 36
- 6 kt tailwind · 4 kt crosswind from right
no active equipment NOTAM receivedView Runway Intelligence →
“Current use” is what the facilitystates; wind components are arithmetic on the current METAR against TRUE headings; status reflects NOTAMs received through SWIM, the tower's TFDM record and the D-ATIS — a runway reads “Open” only with a complete NOTAM picture.
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 8→7 kt, ceiling unlimited → 11,000 ft.
KMIW weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap
NOAA NEXRAD composite and lightning, updated about every five minutes; amber frames are HRRR model guidance, not observed radar. Not for navigation.
Pilot reports (PIREPs) within 100 NM of KMIW
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
MCW UA /OV MCW/TM 1337/FL430/TP C700/TB CONS LGT OCNL MOD CHOP
MCW UAHeader: reporting station and UA: a routine pilot report.OV MCWLocation: fix or navaid, optionally with a radial and distance in NM.TM 1337Reported at 13:37 UTC.FL430Altitude: 43,000 ft MSL.TP C700Aircraft type reporting.TB CONS LGT OCNL MOD CHOPTurbulence: continuous light occasional moderate chop.Show raw report
DSM UA /OV DSM/TM 1243/FL130/TP E75S/TB LGT 090-120/RM DURC
DSM UAHeader: reporting station and UA: a routine pilot report.OV DSMLocation: fix or navaid, optionally with a radial and distance in NM.TM 1243Reported at 12:43 UTC.FL130Altitude: 13,000 ft MSL.TP E75SAircraft type reporting.TB LGT 090-120Turbulence: light 9,000–12,000 ft.RM DURCRemarks.Show raw report
TNU UUA /OV TNU080025/TM 1132/FL120/TP C550/TB MOD-SEV/RM DURD
TNU UUAHeader: reporting station and UUA: an URGENT pilot report (severe conditions, wind shear, or similar).OV TNU080025Location: fix or navaid, optionally with a radial and distance in NM.TM 1132Reported at 11:32 UTC.FL120Altitude: 12,000 ft MSL.TP C550Aircraft type reporting.TB MOD-SEVTurbulence: moderate to severe.RM DURDRemarks.Show raw report
DSM UUA /OV DSM050040/TM 1130/FL120/TP C550/TB MOD OCC SEV TURB 120-090 DURD
DSM UUAHeader: reporting station and UUA: an URGENT pilot report (severe conditions, wind shear, or similar).OV DSM050040Location: fix or navaid, optionally with a radial and distance in NM.TM 1130Reported at 11:30 UTC.FL120Altitude: 12,000 ft MSL.TP C550Aircraft type reporting.TB MOD OCC SEV TURB 120-090 …Turbulence: moderate occ severe turb 12,000–9,000 ft durd.⚠️ 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 lowest ceiling was 5,500 ft. Wind most often came from the SE.
Share of hours each runway had the most headwind. From wind reports, not ATC assignments.
- 18
- 39%
- 13
- 34%
- 36
- 15%
- 31
- 12%
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Live crosswind meter
Measured by KMIW's own weather station.
Wind is 23° off runway 13, the end with the most headwind right now.
Asphalt · 5,007 ft. Headings from FAA runway data. Not for navigation.
Field aerial
North up
Runway 13/31, 18/36 drawn from FAA threshold coordinates.
Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit
Airport info
From the FAA airport record (cycle 2026-10-01) and OurAirports.
Services
- Fuel
- 100LL · Jet A
- Attended
- Daily 0800-1700 local
- Repairs
- Airframe & engine, major
- Oxygen
- Bottled, low pressure
- Transient parking
- Tie-downs · Hangars
- Landing fee
- No
- Other services
- Charter · Flight instruction · Aircraft rental · Aircraft sales
- Control tower
- None
- Wind indicator
- Lighted
Airport
- Type
- General aviation airport
- ICAO
- KMIW
- IATA
- MIW
- FAA LID
- MIW
- City
- Marshalltown
- State
- Iowa
- Country
- United States
- Elevation
- 975 ft
- Coordinates
- 42.1127, -92.9178
- Runways
- 2 physical runways · 4 runway ends
- Longest runway
- 5,007 ft
- Weather reporting
- Reports METAR
- TAF
- Nearest KALO
- AWOS/ASOS
- 128.325 MHz
- Time zone
- America/Chicago
- Sunset in
- 8h 58m
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.
Within 25 NM
7 airports+1 more within 25 NM
25–50 NM
8 airports+2 more within 50 NM
50–100 NM
8 airports+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
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.
Full historical breakdown
Flight category by month
| 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
| 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 |
Historical summary of past observations: not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.
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MIW's real runway layout on the back, elevation and tower frequency on the front. Add your tail number on the sleeve.
Pilot PIREPs for Marshalltown Municipal Airport (KMIW)
Community-submittedCommunity-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.
⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
No D-ATIS at this airport, showing METAR.
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