United States · elevation 4170 ft AMSL
· 47.0484, -109.4661
Lewistown Municipal Airport is an airport with the ICAO code KLWT and the IATA code LWT. Country: United States. Nearest settlement listed in the database: Lewistown. OurAirports classifies it as a medium-sized airport. Its ICAO code starts with the KL prefix, which marks airports in United States. The four-letter code KLWT is used in flight operations and weather reports, while the three-letter IATA code LWT is used for ticketing and baggage handling. The airport reference point sits at 47°02'54"N, 109°27'58"W, at an elevation of 4,170 ft (1,271 m) above sea level. The applicable time zone is America/Denver.
Aerial imagery showing the runway and apron layout - the zoom is matched to the longest runway.
| Threshold | Course | Length | Width | Surface |
|---|---|---|---|---|
| 03 | 30° | 1,707 m (5,600 ft) | 31 m (101 ft) | asphalt |
| 21 | 210° | |||
| 08 | 80° | 1,859 m (6,100 ft) | 30 m (100 ft) | asphalt |
| 26 | 260° | |||
| 13 | 130° | 1,250 m (4,102 ft) | 19 m (62 ft) | asphalt |
| 31 | 310° |
The course is derived from the runway designator (number × 10), not from a survey - the actual magnetic bearing can differ by a few degrees.
Declared distances (TORA, TODA, ASDA, LDA) are published in the national AIP - they are not part of this table.
What the METAR reports from KLWT for 2023-2025 show - counted hour by hour.
We computed these statistics from 25,602 METAR reports issued by KLWT in 2023-2025. VFR conditions prevailed 88% of the time, MVFR 6% and IFR or LIFR 6%. Best month for VFR flying: August (98% of hours VFR). Most IFR and LIFR hours: January (13%).
Through the day, IFR or LIFR conditions are most frequent around 15:00 UTC (9% of reports at that hour) and least frequent around 02:00 UTC (4%).
Fog (FG) was reported on 19 days a year on average, most often in January. Thunderstorms (TS) occurred on 16 days a year on average, and snowfall on 63.
The wind most often blows from ESE (113°) - 11% of reports. Calm (0 kt) made up 9% of reports, and gusts of 25 kt or more appeared in 5%. Warmest month: July (average high 28.0 °C); coldest: January (average low -10.1 °C).
Day counts are for the selected period (for all years - the yearly average).
The top of each bar is the average daily high, the bottom the average daily low (usually around dawn), in °C.
Most often: ESE - 11% of reports. Each petal shows the direction the wind blows from (as in METAR) - the longer it is, the more often. Colour shows wind speed.
| Month | Avg high °C | Avg low °C | VFR | IFR/LIFR | Fog days | Thunderstorm days | Snow days |
|---|---|---|---|---|---|---|---|
| January | 0.3 | -10.1 | 77% | 13% | 4.1 | 0 | 13 |
| February | 0.4 | -9.5 | 79% | 12% | 2.8 | 0 | 11 |
| March | 5.5 | -5.0 | 79% | 11% | 2.4 | 0 | 11 |
| April | 12.9 | -0.8 | 85% | 8% | 2.8 | 0.7 | 8.6 |
| May | 18.4 | 4.8 | 87% | 5% | 1.7 | 0 | 1.7 |
| June | 22.3 | 8.2 | 92% | 3% | 0.7 | 4.7 | 0 |
| July | 28.0 | 11.4 | 95% | 1% | 0 | 5 | 0 |
| August | 27.7 | 11.7 | 98% | <1% | 0 | 3.3 | 0 |
| September | 25.0 | 8.6 | 93% | 4% | 0 | 2.3 | 0.3 |
| October | 16.4 | 2.3 | 86% | 7% | 1.1 | 0 | 2.2 |
| November | 9.1 | -3.1 | 90% | 5% | 1.4 | 0 | 5.5 |
| December | 6.7 | -4.6 | 90% | 7% | 2 | 0 | 9 |
Temperatures are averages of daily highs and lows. Day counts are the average per month over the period.
According to OurAirports data (compiled from AIP and FAA sources), Lewistown Municipal Airport has 3 runways: 03/21 - 1,707 m long (5,600 ft), 31 m wide, asphalt surface; 08/26 - 1,859 m long (6,100 ft), 30 m wide, asphalt surface; 13/31 - 1,250 m long (4,102 ft), 19 m wide, asphalt surface.
The longest of them is 08/26, at 1,859 m.
The thresholds are oriented as follows: 03/21 on 30° and 210° magnetic, 08/26 on 80° and 260° magnetic, 13/31 on 130° and 310° magnetic. A threshold designator is its magnetic heading divided by ten (ICAO Annex 14), so the runway axis can be read straight off the numbers.
For the 03/21 axis, wind from the south-east (around 120°) or from the north-west (around 300°) blows perpendicular to the runway and produces the largest crosswind component. Wind from around 30° or 210° acts along the runway, as a headwind or a tailwind. The decoder on this page computes those components automatically from the current METAR.
Weather reports for Lewistown Municipal Airport are published under the ICAO code KLWT. A METAR is an observation of current conditions, usually issued every 30 or 60 minutes; a TAF is a forecast for the airport area, typically covering 9 to 30 hours.
The decoder breaks the KLWT report down into its parts: wind direction and speed including gusts and variability, visibility (including CAVOK and directional minimum visibility), weather phenomena by WMO code, cloud layers with their bases, temperature and dew point, QNH pressure, and the resulting flight category - VFR, MVFR, IFR or LIFR - using FAA thresholds.
Not every airport issues its own reports; many smaller airfields have no weather station. If no current data is available for KLWT, check the nearby airports listed below.
Reports always use UTC (the Z suffix). The America/Denver zone is GMT-07:00 in winter and GMT-06:00 in summer - that is the shift to apply to the time in the report to get local time at the airport.
The closest airports in the database, measured in a straight line from the reference point, are Wheatland County Airport at Harlowton (KHWQ, 73 km), Roundup Airport (KRPX, 95 km), Malmstrom Air Force Base (Great Falls) (KGFA, 139 km). When no report is available for KLWT, they usually give the best approximation of conditions in the area.
METAR Academy
Step-by-step guides - with examples, charts and calculators.
Advertisement
Pass your ICAO Aviation English exam - 100% online
ICAO Level 4, 5 or 6 for PPL(A)/CPL(A)/ATPL(A): aviation vocabulary, radio phraseology, pronunciation and standard/emergency flight scenarios. Buy through this link and get a 10% discount.
The METAR archive for KLWT goes back to 01/04/1942. Pick a date and see every observation from that day.
Run a flying club, a training organisation or an airfield website? Embed a ready-made panel with the current KLWT METAR - flight category, wind, visibility, temperature and pressure, refreshed automatically. The configurator lets you pick language, theme and units; you paste the code once.
