WxDecoder

MT77 Weather Peterson Ranch Airport

Highwood, MontanaElevation 3,340 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KGTF · 20 NM W · 51 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 · KGTF
WIND
120@3
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 180° at 3 kt, visibility 10 SM, temperature -1C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy then areas of fog, low near 20F, 0% chance of precipitation. Key risks: strong winds in the forecast.

PILOT WEATHER NOTES
Strong winds in the forecastWeather.gov
Tuesday: winds up to 29 kt. Re-check crosswind components closer to departure.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy then Areas Of Fog 20 SSE 4 kt – 0%
Monday Areas Of Fog then Partly Sunny 46/30 NE 2 kt – 55%
Tuesday Light Rain Likely 51/33 SW 22 kt 29 kt 59% Strong winds in the forecast
Wednesday Sunny 53/27 SW 11 kt 18 kt 10%
Thursday Partly Sunny 41/24 N 5 kt – 39%
Friday Slight Chance Light Snow then Mostly Cloudy 40/24 N 3 kt – 24%
Saturday Partly Sunny 46/27 SW 2 kt – 17%
Sunday Chance Rain And Snow 49 WSW 5 kt – 29%

Source: National Weather Service (office TFX). Forecast issued 0144Z.

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 MT77. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

2 runways · longest 2,040 ft

17/35
Dimensions
2,040 x 50 ft
Surface
Turf
RWY 17
RWY 35
05/23
Dimensions
2,000 x 50 ft
Surface
Turf
RWY 05
Displaced threshold500 ft
RWY 23

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
3,340 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0017Z 6:17 PM
Sunrise
1358Z 7:58 AM
Loggable night
0049Z (6:49 PM local) → 1326Z (7:26 AM local)
end of evening to start of morning civil twilight
Position lights required
0017Z (6:17 PM local) → 1358Z (7:58 AM local)
sunset to sunrise (91.209)
Night passenger currency
0117Z (7:17 PM local) → 1258Z (6:58 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

Peterson Ranch Airport is in Highwood, Montana. Field elevation 3,340 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSmall airport
ManagerG.R. PETERSON II
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATAMT77
SectionalGREAT FALLS
Center (ARTCC)SALT LAKE CITY
Flight service (AFSS)GREAT FALLS
RegionMontana
CountryUnited States
Coordinates47.6087, -110.9065
Distance from city5 NM NW
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

MT77 has no on-field report. Nearest reporting station: KGTF (20 NM W, VFR).

KGTF Great Falls International Airport
20 NM W
VFR
KSBX Shelby Airport
68 NM NW
VFR
KHVR Havre City County Airport
72 NM NE
VFR
KHLN Helena Regional Airport
75 NM SW
VFR
KCTB Cut Bank International Airport
84 NM NW
VFR
AIRPORT REMARKS

Operational remarks

›RY 05/23 CLSD INDEFLY.
›PRVDD ARPT IS OPERATED IN ACCORDANCE WITH PROPONENTS PROPOSAL.
›FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗MT77 on OurAirports
FREQUENTLY ASKED
Does MT77 have a METAR?
No on-field METAR is issued for MT77. This page uses the nearest reporting station as a reference.
Does MT77 have a TAF?
No TAF is issued directly for MT77. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at MT77?
MT77 sits at 3,340 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for MT77?
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.