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.
Wind from the northeast (040°) at 4 kt, visibility 9 statute miles, no cloud data, temperature 24°C (75°F), altimeter 29.91 inHg. Conditions are Visual Flight Rules (VFR).
METAR KMIW 290153Z AUTO 04004KT 9SM CLR 24/22 A2991 RMK AO2 SLP121 T02390217
What changed at KMIW?
Since the 0053Z (7:53 PM CDT) report — compared automatically against the latest METAR.
No significant changes since the 0053Z 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 040° at 4 knots, visibility 9 statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 13, about 4 knots. Density altitude is approximately 2,300 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 TelegramRunway 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 | 3 kt head | 2 kt right |
| 13 | 5,007 ft | ASP | 0 kt head | 4 kt left |
| 31 | 5,007 ft | ASP | 0 kt head | 4 kt right |
| 18 | 2,759 ft | ASP | 3 kt tail | 2 kt left |
Open the crosswind calculator — try your own wind and runway numbers →
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 6→4 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.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © OpenStreetMap © CARTO
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.
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. Wind most often came from the NE.
Most recent change: IFR → VFR
- 18
- 36%
- 13
- 28%
- 31
- 18%
- 36
- 18%
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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.
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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
- 23h 28m
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
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.
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-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.
Why pilots use ATIS Alerts
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- Get pinged the moment KMIW drops below VFR or a new report moves your numbers.
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⚠️ 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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