WxDecoder

11MT Weather Lammers Airport

Shawmut, MontanaElevation 4,098 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KBIL · 56 NM SE · 49 min old
No ceiling, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KBIL
WIND
360@7
steady
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

No aviation METAR is published for this airport. The nearest National Weather Service station reports wind from 190° at 4 kt, visibility 10 SM, temperature 1.6C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly clear, low near 23F, 1% chance of precipitation. Key risks: strong winds in the forecast.

PILOT WEATHER NOTES
Strong winds in the forecastWeather.gov
Tuesday: winds up to 38 kt. Re-check crosswind components closer to departure.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Clear 23 E 7 kt – 1%
Monday Patchy Fog then Mostly Sunny 47/29 ESE 8 kt – 33%
Tuesday Chance Snow Showers then Partly Sunny 50/26 W 29 kt 38 kt 51% Strong winds in the forecast
Wednesday Sunny 52/25 WSW 11 kt – 1%
Thursday Mostly Sunny 49/23 ENE 7 kt – 14%
Friday Slight Chance Snow Showers 43/23 SE 4 kt – 27%
Saturday Slight Chance Rain And Snow Showers then Partly Sunny 49/25 W 3 kt – 15%
Sunday Mostly Sunny then Chance Rain Showers 52 WSW 6 kt – 35%

Source: National Weather Service (office BYZ). Forecast issued 0242Z.

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
Crosswind calculator
No runway layout is available for 11MT. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

2 runways · longest 1,769 ft

10/28
Dimensions
1,257 x 30 ft
Surface
Gravel
RWY 10
RWY 28
18/36
Dimensions
1,769 x 30 ft
Surface
Gravel
RWY 18
RWY 36

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

FIELD CONDITIONS

Field elevation

Field elevation
4,098 ft MSL

Density and pressure altitude need a current temperature and altimeter from the METAR.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0014Z 6:14 PM
Sunrise
1350Z 7:50 AM
Loggable night
0045Z (6:45 PM local) → 1319Z (7:19 AM local)
end of evening to start of morning civil twilight
Position lights required
0014Z (6:14 PM local) → 1350Z (7:50 AM local)
sunset to sunrise (91.209)
Night passenger currency
0114Z (7:14 PM local) → 1250Z (6:50 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

Lammers Airport is in Shawmut, Montana. Field elevation 4,098 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSmall airport
ManagerARVILLE LAMMERS
Manager phone406 632 4140
CHARTS & AIRSPACE
ICAO / IATA11MT
SectionalGREAT FALLS
Center (ARTCC)SALT LAKE CITY
Flight service (AFSS)BOISE
RegionMontana
CountryUnited States
Coordinates46.4628, -109.4906
Distance from city10 NM N
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

11MT has no on-field report. Nearest reporting station: KBIL (56 NM SE, VFR).

KBIL Billings Logan International Airport
56 NM SE
VFR
KLVM Mission Field
61 NM SW
VFR
KBZN Bozeman Yellowstone International Airport
80 NM SW
LIFR
KGTF Great Falls International Airport
98 NM NW
VFR
KPOY Powell Municipal Airport
100 NM S
VFR
AIRPORT REMARKS

Operational remarks

›FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗11MT on OurAirports
FREQUENTLY ASKED
Does 11MT have a METAR?
No on-field METAR is issued for 11MT. This page uses the nearest reporting station as a reference.
Does 11MT have a TAF?
No TAF is issued directly for 11MT. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 11MT?
11MT sits at 4,098 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 11MT?
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.