Weather in Letterkenny today: the honest forecast
Tomorrow in Letterkenny
Saturday 17/10/2026
Grey, grey and more grey. Sure it suits us.
Clouds, high of 10°C, low of 5°C. 0 mm of rain, 0% chance. Wind up to 8 km/h.
The day after in Letterkenny
Sunday 18/10/2026
Grey as your man’s personality.
Clouds, high of 11°C, low of 2°C. 0 mm of rain, 0% chance. Wind up to 8 km/h.
Next 24 hours in Letterkenny
Lashin’ outta the heavens.
In 3-hour steps.
- 16:00 11° 20% chance of rain
- 19:00 10° 0% chance of rain
- 22:00 8° 0% chance of rain
- 01:00 6° 0% chance of rain
- 04:00 5° 0% chance of rain
- 07:00 5° 0% chance of rain
- 10:00 8° 0% chance of rain
- 13:00 10° 0% chance of rain
The days ahead in Letterkenny
- Sat 17/10 Clouds 10° / 5° 0 mm, 0% Forecast: chaos with a chance of disappointment.
- Sun 18/10 Clouds 11° / 2° 0 mm, 0% Dull, grey and mild. The national colours.
- Mon 19/10 Clouds 10° / 1° 0 mm, 0% Sky looks like it’s hungover.
- Tue 20/10 Rain 10° / 4° 1 mm, 100% The rain’s gone and let itself in again.
- Wed 21/10 Rain 9° / 4° 3.4 mm, 97% Chilly. Not Baltic, not tropical. A decent coat will do ya.
About the weather in Letterkenny
Letterkenny is in County Donegal at the head of Lough Swilly. It is exposed to Atlantic weather from the north-west, so it can be showery and windy, with the surrounding hills catching a lot of the rain.
Across Ireland, spring is cool and bright with showers, summer highs are typically in the high teens with long evenings, autumn is the wettest and windiest stretch as the Atlantic fronts return, and winter is mild for the latitude with frost on clear nights. Rain can arrive in any month.
Quick answers for Letterkenny
- What is the weather in Letterkenny right now?
- It is 11°C in Letterkenny with few clouds, feeling like 10°C, with wind at 22 km/h.
- Will it rain in Letterkenny tomorrow?
- Rain is unlikely tomorrow in Letterkenny (a 0% chance).
- What will the temperature be in Letterkenny tomorrow?
- A high of 10°C and a low of 5°C, with wind around 8 km/h.
- What time is sunset in Letterkenny today?
- Sunrise is at 08:01 and sunset at 18:30.