Letterkenny Airport (LTR) 15 Day Weather Forecast, Letterkenny Ireland
Current weather conditions and 15 day weather forecast for Letterkenny Airport in Letterkenny, Ireland including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at LTR
| 18 September 2026 Fri 15.1 ° C ( 59.1°F )  Patchy rain nearby |
Feels Like : 12.2 ° C / 54°F Humidity : % 96 Pressure : 1002 mb Wind Speed : 22.3 kmph / 13.9 miles from WSW 
Visibility : 10 km Precipitation (rainfall) : 0.05 mm Cloud (%) : 100 |
15-day weather forecast for Letterkenny Airport, Letterkenny, Ireland
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 18 September 2026 Fri | Patchy rain nearby |
10 ° C | 15.2 ° C | 12.7 ° C | % 90 | 25.9 km/h | 89% |
| 19 September 2026 Sat | Patchy rain nearby |
10.4 ° C | 14.1 ° C | 12.4 ° C | % 78 | 27.4 km/h | 66% |
| 20 September 2026 Sun | Patchy rain nearby |
9.5 ° C | 14.4 ° C | 11.5 ° C | % 74 | 19.4 km/h | 75% |
| 21 September 2026 Mon |  Sunny |
11 ° C | 22.1 ° C | 16.5 ° C | % 86 | 18.4 km/h | 57% |
| 22 September 2026 Tue |  Mist |
12.5 ° C | 19.7 ° C | 15.4 ° C | % 87 | 10.8 km/h | 51% |
| 23 September 2026 Wed | Patchy rain nearby |
10.8 ° C | 18.5 ° C | 13.6 ° C | % 89 | 17.6 km/h | 86% |
| 24 September 2026 Thu | Patchy rain nearby |
10.3 ° C | 18.1 ° C | 13 ° C | % 83 | 15.8 km/h | 25% |
| 25 September 2026 Fri | Sunny |
7.5 ° C | 18.6 ° C | 12.2 ° C | % 82 | 16.2 km/h | 12% |
| 26 September 2026 Sat | Sunny |
8.2 ° C | 19.3 ° C | 12.7 ° C | % 80 | 6.8 km/h | 10% |
| 27 September 2026 Sun |  Fog |
8.8 ° C | 16.3 ° C | 11.8 ° C | % 85 | 16.2 km/h | 22% |
| 28 September 2026 Mon | Fog |
6 ° C | 14.1 ° C | 9.8 ° C | % 85 | 15.1 km/h | 19% |
| 29 September 2026 Tue | Mist |
5.4 ° C | 13.7 ° C | 9.2 ° C | % 81 | 13.3 km/h | 17% |
| 30 September 2026 Wed | Sunny |
2.5 ° C | 11.7 ° C | 7 ° C | % 73 | 13.7 km/h | 9% |
| 01 October 2026 Thu | Sunny |
3.7 ° C | 13.3 ° C | 7.4 ° C | % 76 | 15.5 km/h | 11% |
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