KSMN/SMN METAR & TAF Lemhi County Airport

Salmon, IdahoElevation 4,043 ftMedium airport

CURRENT STATUS

VFR45 min old

Ceiling 10,000 ft, visibility 10 SM.

FLIGHT CATEGORY

VFR

ceiling & visibility

WIND

350@4

steady

VISIBILITY

10 SM

16.1 km

CEILING

10,000 ft

lowest BKN/OVC

DENSITY ALT

4,142 ft

+99 ft vs field

CURRENT METAR

Decoded observation

Observed 2356Z (5:56 PM local) · 45 min old

KSMN is currently VFR. Winds are from the north at 4 knots. Visibility is 10 statute miles. The ceiling is 10,000 feet AGL.

WIND

350° at 4 kt

Steady.

VISIBILITY

10 statute miles

16.1 km, good.

CEILING & SKY

Ceiling 10,000 ft

Lowest broken or overcast layer.

TEMP / DEWPOINT

8°C / 4°C

46°F / 39°F. 4°C spread.

ALTIMETER

29.94 inHg

1013.9 hPa, near standard.

WEATHER & HAZARDS

No significant hazards

No precipitation or obscuration reported.

Codes in this report: AUTO OVC RMK AO2

Hover or tap any group for a plain-English explanation.

REMARKS: DECODED

AO2

automated station with a precipitation discriminator (can tell rain from snow)

RAE09

rain ended at :09 past the hour

SLP150

sea-level pressure 1015.0 hPa

P0000

0.00 inches of precipitation in the last hour

60009

0.09 inches of precipitation in the last 3-6 hours

T00780044

precise temperature 7.8°C, dew point 4.4°C

10133

6-hour maximum temperature 13.3°C

20072

6-hour minimum temperature 7.2°C

50005

3-hour pressure tendency: rising then falling (0.5 hPa change)

TERMINAL AERODROME FORECAST

TAF timeline

Issued 2320Z (5:20 PM local) · valid to 0000Z (6:00 PM local)

KSMN forecast starts VFR at 00Z. Conditions are roughly steady over the period.

BKN0404,000 ft

BKN0505,000 ft

BKN0454,500 ft

BKN0505,000 ft

0000Z6:00 PM0448Z10:48 PM0936Z3:36 AM1424Z8:24 AM1912Z1:12 PM0000Z6:00 PM

Codes in this report: FEW BKN OVC BR P6SM

Tap any group to decode it.

FAA: no delays reported at SMN.

Source: FAA System Operations (ASWS). Operational status only; verify with official FAA sources and NOTAMs.

SUGGESTED RISK · TRAINING USE

Suggested risk level: Low

›No significant weather concerns in the current report.

A suggested risk level for training and situational awareness only, not a go/no-go authority. Verify with official sources and apply your personal minimums.

FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

Current aviation conditions show flight category VFR, wind from 350° at 4 kt, visibility 10 SM, ceiling 10,000 ft. Forecast suggests tonight showers and thunderstorms, low near 25F, 76% chance of precipitation. Key risks: thunderstorms in the forecast. Note: the NWS forecast for now reads "Showers And Thunderstorms Likely" but the current METAR shows none of it; the observation and forecast differ, so trust the METAR for current conditions.

PILOT WEATHER NOTES

Thunderstorms in the forecastWeather.gov

Tonight: Showers And Thunderstorms. Watch for developing convection and plan alternates.

Day	Conditions	Temp F	Wind	Gusts	Precip	Pilot note
Tonight	Showers And Thunderstorms	25	SSW 8 kt	19 kt	76%	Thunderstorms in the forecast
Tuesday	Partly Sunny then Slight Chance Rain Showers	45/22	SSW 6 kt	–	16%
Wednesday	Mostly Sunny	46/21	S 9 kt	20 kt	2%
Thursday	Mostly Sunny	49/33	S 5 kt	–	2%
Friday	Chance Rain And Snow	49/31	0 kt	–	25%
Saturday	Partly Sunny then Slight Chance Light Rain	47/30	0 kt	–	33%
Sunday	Slight Chance Rain And Snow	46/27	0 kt	–	23%
Monday	Mostly Sunny	49	0 kt	–	12%

Note: the NWS forecast for now reads "Showers And Thunderstorms Likely" but the current METAR shows none of it; the observation and forecast differ, so trust the METAR for current conditions.

Source: National Weather Service (office MSO). Forecast issued 0040Z.

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

1 runway · crosswind ranking

ON-FIELD METAR

READING THE BARB · SWIPE FOR MORE →

Calm

5 kt

10 kt

15 kt

20 kt

25 kt

30 kt

35 kt

40 kt

45 kt

50 kt

65 kt

75 kt

100 kt

105 kt

Half feather = 5 kt, full = 10 kt, filled pennant = 50 kt; add them up. The staff points the direction the wind blows from.

WIND USED

350° at 4 kt

Components computed from the current on-field METAR wind.

RECOMMENDED

RWY 354 kt headwind · 1 kt crosswind

RUNWAYS BY WIND · best end

HEAD

4 kt

CROSS

1 kt L

BEST

HEAD

4 kt tail

CROSS

1 kt R

Components are estimates from the current METAR wind and runway heading. Verify with the Chart Supplement and NOTAMs.

RUNWAYS

Runway detail & declared distances

1 runway · longest 5,510 ft

17/35

Dimensions

5,510 x 75 ft

Surface

Asphalt (excellent)

Edge lights

MED

RWY 17188°T

REILYes

VGSIPAPI (P4L)

RWY 358°T

REILYes

Traffic patternLeft

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

FIELD CONDITIONS

Performance & density altitude

Density altitude

4,142 ft

Pressure altitude

4,023 ft

Field elevation

4,043 ft MSL

Temperature

8°C (46°F)

Dewpoint

4°C (39°F)

Altimeter

29.94 inHg

Density altitude estimates how the aircraft performs versus standard atmosphere. Higher density altitude reduces climb performance and increases takeoff distance.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset

0032Z 6:32 PM

Sunrise

1407Z 8:07 AM

Loggable night

0102Z (7:02 PM local) → 1336Z (7:36 AM local)

end of evening to start of morning civil twilight

Position lights required

0032Z (6:32 PM local) → 1407Z (8:07 AM local)

sunset to sunrise (91.209)

Night passenger currency

0132Z (7:32 PM local) → 1307Z (7:07 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

Lemhi County Airport is in Salmon, Idaho. Field elevation 4,043 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT

OwnershipPublicly owned

UseOpen to the public

TypeMedium airport

Airline serviceYes

ManagerCHARLES LAMOURE

Manager phone208-940-2171

AttendedDaily, 0800–1700

CHARTS & AIRSPACE

ICAO / IATAKSMN / SMN

SectionalGREAT FALLS

Center (ARTCC)SALT LAKE CITY

Flight service (AFSS)BOISE

RegionIdaho

CountryUnited States

Coordinates45.1222, -113.8820

Distance from city4 NM S

SERVICES & LIGHTING

Fuel100 · Jet A

Control towerNon-towered

Field lightingSee remarks

BeaconSunset to sunrise · White-green (lighted land airport)

CTAF122.800

UNICOM122.800

FREQUENCIES

Communications

135.075

AWOS 3

AWOS

132.4

SALT LAKE CITY CNTR

CNTR

122.55

BOISE RDO

RDO

122.8

CTAF/UNICOM

UNIC

122.800

CTAF

122.800

UNICOM

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

Current flight category at nearby reporting stations.

VFR

VFR

KBTM Bert Mooney Airport

77 NM NE

VFR

KMYL McCall Municipal Airport

95 NM W

VFR

KGIC Idaho County Airport

106 NM NW

MVFR

KRXE Rexburg Madison County Airport

118 NM SE

VFR

AIRPORT REMARKS

Operational remarks

›ACTVT MIRL RY 17/35; REIL RY 17 & RY 35 AND PAPI RY 17 - CTAF.

›RETROREFLECTIVE REFLECTORS ON PARALLEL TWY AND RAMP AREA.

›COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -12C.

›TAXIWAY ACCESS TO AIRCRAFT RAMP LOCATED ON SE END OF AIRPORT IS CLSD.

›CONSTD PRIOR TO 1959.

›+1000' MOUNTAIN AT 3 MILES.

›USE RGT TFC PATTERN FOR NIGHT OPNS ONLY.

OFFICIAL LINKS & SOURCES

↗Official METAR on AviationWeather.gov

↗Search NOTAMs (official FAA NOTAM Search)

↗Official airport website

↗Wikipedia

↗KSMN on OurAirports

FREQUENTLY ASKED

Does KSMN have a METAR?

Yes. KSMN has a current METAR observation, decoded into plain English on this page.

Does KSMN have a TAF?

Yes, a TAF is issued for KSMN; the decoded forecast timeline is shown above.

What is the field elevation at KSMN?

KSMN sits at 4,043 ft MSL, which factors into the density-altitude estimate on this page.

Is this an official preflight weather briefing for KSMN?

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.