Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 20°C. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Friday
24th Apr
20

4

12

4
Saturday
25th Apr
19

5

1

4
Sunday
26th Apr
15

8

4

2
Monday
27th Apr
15

7

4

3
Tuesday
28th Apr
18

7

6

5

5-day weather forecast updated at 04:03 on Friday 24th April 2026 GMT

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The 5-day weather forecast for Ireland (Letterkenny) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Letterkenny weather forecast by day

Below are the detailed weather forecasts for Letterkenny for the next 5 days.

Letterkenny weather for Friday 24th April 2026

Expect scattered clouds in Letterkenny, Ireland with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-east.

20
°C maximum temperature
4
°C minimum temperature
scattered clouds
12
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
16
kph wind from SE

Letterkenny weather for Saturday 25th April 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 9% chance of some rain and a light breeze of 11 kph from the south.

19
°C maximum temperature
5
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
4
UV index (Moderate)
9
% chance of some rain
<2
mm of rainfall expected
19
°C wind chill
11
kph wind from S

Letterkenny weather for Sunday 26th April 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 15°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 28% chance of some rain and a gentle breeze of 15 kph from the west.

15
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
2
UV index (Low)
28
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
15
kph wind from W

Letterkenny weather for Monday 27th April 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the north.

15
°C maximum temperature
7
°C minimum temperature
broken clouds
4
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
15
°C wind chill
10
kph wind from N

Letterkenny weather for Tuesday 28th April 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north-east.