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
| 13 September 2026 Sun 18.7 ° C ( 65.6°F )  Overcast |
Feels Like : 17.1 ° C / 62.8°F Humidity : % 64 Pressure : 1018 mb Wind Speed : 10.8 kmph / 6.7 miles from S 
Visibility : 10 km Precipitation (rainfall) : 0 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 |
|---|---|---|---|---|---|---|---|
| 13 September 2026 Sun | Overcast |
9 ° C | 19 ° C | 14 ° C | % 85 | 13 km/h | 26% |
| 14 September 2026 Mon |  Fog |
12.3 ° C | 17.4 ° C | 14.8 ° C | % 94 | 20.9 km/h | 89% |
| 15 September 2026 Tue |  Patchy rain nearby |
10.3 ° C | 15.7 ° C | 12.6 ° C | % 87 | 23.4 km/h | 78% |
| 16 September 2026 Wed | Overcast |
8.7 ° C | 14.8 ° C | 12.2 ° C | % 75 | 23.4 km/h | 56% |
| 17 September 2026 Thu | Patchy rain nearby |
9.9 ° C | 14.1 ° C | 11.8 ° C | % 85 | 26.6 km/h | 80% |
| 18 September 2026 Fri | Patchy rain nearby |
11.5 ° C | 15.7 ° C | 13.4 ° C | % 84 | 25.6 km/h | 66% |
| 19 September 2026 Sat | Patchy rain nearby |
10.3 ° C | 14 ° C | 12 ° C | % 73 | 31.3 km/h | 57% |
| 20 September 2026 Sun | Overcast |
10.8 ° C | 16.3 ° C | 12.7 ° C | % 70 | 24.1 km/h | 21% |
| 21 September 2026 Mon | Patchy rain nearby |
11.3 ° C | 17.6 ° C | 15.5 ° C | % 84 | 23.4 km/h | 40% |
| 22 September 2026 Tue | Patchy rain nearby |
7.2 ° C | 14.1 ° C | 11.3 ° C | % 73 | 23.4 km/h | 20% |
| 23 September 2026 Wed | Overcast |
5.9 ° C | 15.3 ° C | 9.7 ° C | % 77 | 10.8 km/h | 21% |
| 24 September 2026 Thu |  Sunny |
6 ° C | 18 ° C | 11.3 ° C | % 73 | 11.5 km/h | 10% |
| 25 September 2026 Fri | Sunny |
6.9 ° C | 18.5 ° C | 11.8 ° C | % 71 | 12.2 km/h | 7% |
| 26 September 2026 Sat | Sunny |
7.4 ° C | 19.4 ° C | 12.5 ° C | % 70 | 10.8 km/h | 7% |
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