WxDecoder

U84 Weather Donald D. Coski Memorial Airport

Donnelly, IdahoElevation 4,860 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KMYL · 10 NM N · 22 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 · KMYL
WIND
320@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 340° at 3 kt, visibility 10 SM, temperature 8C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy then widespread frost, low near 26F, 12% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Monday: Widespread Frost then Widespread Showers And Thunderstorms. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy then Widespread Frost 26 ESE 2 kt – 12%
Monday Widespread Frost then Widespread Showers And Thunderstorms 50/24 S 6 kt – 77% Thunderstorms in the forecast
Tuesday Areas Of Fog then Rain Showers Likely 43/23 SSW 6 kt – 56%
Wednesday Patchy Fog then Chance Rain And Snow Showers 47/21 SSW 8 kt – 33%
Thursday Areas Of Fog then Partly Sunny 48/20 SSE 4 kt – 26%
Friday Areas Of Fog then Chance Rain And Snow Showers 48/18 WNW 2 kt – 36%
Saturday Areas Of Fog then Chance Rain And Snow Showers 49/20 NW 1 kt – 40%
Sunday Areas Of Fog then Chance Rain Showers 50 NNW 1 kt – 40%

Source: National Weather Service (office BOI). Forecast issued 0112Z.

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 U84. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 2,500 ft

18/36
Dimensions
2,500 x 125 ft
Surface
Turf (fair)
RWY 18
Traffic patternLeft
RWY 36
Traffic patternLeft

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
4,860 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0043Z 6:43 PM
Sunrise
1414Z 8:14 AM
Loggable night
0113Z (7:13 PM local) → 1343Z (7:43 AM local)
end of evening to start of morning civil twilight
Position lights required
0043Z (6:43 PM local) → 1414Z (8:14 AM local)
sunset to sunrise (91.209)
Night passenger currency
0143Z (7:43 PM local) → 1314Z (7:14 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

Donald D. Coski Memorial Airport is in Donnelly, Idaho. Field elevation 4,860 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeSmall airport
ManagerCAMI HEDGES
Manager phone208-325-8859
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATAU84
SectionalGREAT FALLS
Center (ARTCC)SALT LAKE CITY
Flight service (AFSS)BOISE
RegionIdaho
CountryUnited States
Coordinates44.7255, -116.0912
Distance from city1 NM W
SERVICES & LIGHTING
Control towerNon-towered
CTAF122.900
FREQUENCIES

Communications

122.900
CTAF
CTAF

Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.

AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

U84 has no on-field report. Nearest reporting station: KMYL (10 NM N, VFR).

KMYL McCall Municipal Airport
10 NM N
VFR
KONO Ontario Municipal Airport
58 NM SW
VFR
KBOI Boise Air Terminal/Gowen Field
70 NM S
VFR
KGIC Idaho County Airport
73 NM N
VFR
KBKE Baker City Municipal Airport
74 NM W
VFR
KLLJ Challis Airport
81 NM E
VFR
AIRPORT REMARKS

Operational remarks

›45 FT TREES AT 0 FT, 75 FT RIGHT.
›FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
›MAY BE MOWED LESS THAN FULL WIDTH.
›NO TELEPHONE AVBL AT ARPT.
›65 FT TREES 500 FT ON CNTRLN AER. 60 FT TREES AT 0 FT, 100 FT RIGHT.
›+45 FT TREES AT 0 FT 60 FT L; NMRS +20-80 FT TREES ON CNTRLN AER.
›BOTH SIDES RWY: +30-80 FT TREES.
›RCMD LAND RY 36 & TKOF RY 18 WHEN WIND CONDS PERMIT.
›NO WINTER MAINTENANCE.
›RY 18/36 MAY NOT BE MOWED FULL WIDTH.
›LORI CLEMENS IS THE CITY CLERK & AMGR.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗U84 on OurAirports
FREQUENTLY ASKED
Does U84 have a METAR?
No on-field METAR is issued for U84. This page uses the nearest reporting station as a reference.
Does U84 have a TAF?
No TAF is issued directly for U84. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at U84?
U84 sits at 4,860 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for U84?
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.