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Tillitt Field (K1S3) Aviation Weather: METAR

As of 2:55 AM MDT, Oct 28, K1S3 is currently VFR with winds from 230° at 9 knots, visibility 10+ statute miles, and no ceiling reported.

Live aviation weather for Tillitt Field in Forsyth, MT, including METAR, flight category, wind, visibility, ceiling, altimeter and runway crosswinds.

Tillitt Field (K1S3) is a general aviation airport serving pilots in and around Forsyth, MT at a field elevation of 2,729 ft. K1S3 reports its own METAR, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. It has one runway (09/27), the longest 4,799 ft.

Ask ATIS AIAsk anything about K1S3's weather, runways or delays, or search another airport.
VFR
Observed 0855Z (2:55 AM MDT)live · refreshes every 60s
Wind
230° 9 kt
Visibility
10+ sm
Ceiling
Unlimited
Altimeter
29.84"
Temp / Dew
42°F / 5°C
feels like 36°F

Wind from the southwest (230°) at 9 kt, visibility 10+ statute miles, no cloud data, temperature 5°C (42°F), altimeter 29.84 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR
METAR K1S3 280855Z AUTO 23009KT 10SM CLR 05/M03 A2984 RMK AO2 T00531035 53005

What changed at K1S3?

Since the 0835Z (2:35 AM MDT) report, compared automatically against the latest METAR.

No significant changes since the 0835Z (2:35 AM MDT) report, conditions are holding steady.

Current pilot readout for K1S3

K1S3 is currently VFR with winds from 230° at 9 knots, visibility 10+ statute miles, and no ceiling reported. the wind favors west-facing runway ends (27). Density altitude is approximately 2,300 ft (field elevation 2,729 ft). K1S3 does not publish a TAF. The nearest TAF station is KMLS, about 32 nm away.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

RunwayHead / TailCrosswind
27FAV6 kt head6 kt left
096 kt tail6 kt right

Open the crosswind calculator to try your own wind and runway numbers →

K1S3 runways

1 physical runway · 2 runway ends. Each card opens the runway's intelligence page: equipment and lighting, LAHSO, frequencies, today's configuration, predicted use, history and approaches.

  • Runway 09/27
    4,799 × 75 ft · ASPH-G
    Status not monitored
    Current use
    no stated-runway source at K1S3
    Wind
    09
    6 kt tailwind · 6 kt crosswind from right
    27
    6 kt headwind · 6 kt crosswind from left
    no active equipment NOTAM receivedView Runway Intelligence →

“Current use” is what the facilitystates; wind components are arithmetic on the current METAR against TRUE headings; status reflects NOTAMs received through SWIM, the tower's TFDM record and the D-ATIS — a runway reads “Open” only with a complete NOTAM picture.

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip, flight category:VFRMVFRIFRLIFRNo report
0203909Z21Z08Z

Over the last 24 h: wind 8→9 kt, ceiling 1,000 ft → unlimited.

K1S3 weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.

Loading…
Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap

NOAA NEXRAD composite and lightning, updated about every five minutes; amber frames are HRRR model guidance, not observed radar. Not for navigation.

Recent aviation weather trends at K1S3

From ATIS Alerts' hourly weather history.

Over the past 24 hours, K1S3 reported mostly VFR across 69 observations, with 3 flight-category changes. The strongest gust reached 34 kt, the lowest ceiling was 1,000 ft. Wind most often came from the W.

Last 24 hours
VFR 91%MVFR 9%
Wind avg/max: 8/26 kt
Max gust: 34 kt
Lowest ceiling: 1,000 ft
Lowest vis: -
Prevailing wind: W
Category changes: 3

Most recent change: MVFR → VFR

Last 7 days
VFR 85%MVFR 11%IFR 4%
Wind avg/max: 8/26 kt
Max gust: 33 kt
Lowest ceiling: 600 ft
Lowest vis: 4 sm
Prevailing wind: E
Category changes: 13

Most recent change: MVFR → VFR

Wind-favored runway - past 30 days

Share of hours each runway had the most headwind. From wind reports, not ATC assignments.

09
51%
27
49%

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Live K1S3 Weather

Live crosswind meter

Measured by K1S3's own weather station.

N27099 kt
Headwind
6 kt
Crosswind (from the left)
6 kt

Wind is 46° off runway 27, the end with the most headwind right now.

Asphalt · 4,799 ft. Headings from FAA runway data. Not for navigation.

Field aerial

North up

Aerial photo of Tillitt Field (K1S3) with runway 09/27 marked
N ↑

Runway 09/27 drawn from FAA threshold coordinates.

Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit

Airport info

From the FAA airport record (cycle 2026-10-01) and OurAirports.

Services

Fuel
100LL
Attended
Ireg all day
Repairs
Airframe & engine, major
Transient parking
Tie-downs · Hangars
Landing fee
No
Other services
Flight instruction
Control tower
None
Wind indicator
Lighted

Airport

Type
General aviation airport
ICAO
K1S3
FAA LID
1S3
City
Forsyth
State
Montana
Country
United States
Elevation
2,729 ft
Coordinates
46.2711, -106.6240
Runways
1 physical runway · 2 runway ends
Longest runway
4,799 ft
Weather reporting
Reports METAR
TAF
Nearest KMLS
Time zone
America/Denver
Next sunset
14h 58m

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Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

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1S3's real runway layout on the back, elevation and tower frequency on the front. Add your tail number on the sleeve.

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Pilot PIREPs for Tillitt Field (K1S3)

Community-submitted

Community-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.

Read recent community-submitted pilot notes for Tillitt Field, 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 K1S3 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.

⚠️ 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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