Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 13°C. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Wednesday
10th Jun
13

8

6

3
Thursday
11th Jun
14

8

3

1
Friday
12th Jun
16

11

2

1
Saturday
13th Jun
19

12

10

6
Sunday
14th Jun
21

13

12

5

5-day weather forecast updated at 04:03 on Tuesday 9th June 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 Wednesday 10th June 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 76% chance of some rain and a moderate breeze of 21 kph from the west.

13
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
6
hours of sunshine
3
UV index (Moderate)
76
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
21
kph wind from W

Letterkenny weather for Thursday 11th June 2026

Expect mostly cloudy with rain in Letterkenny, Ireland with a maximum temperature of 14°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 71% chance of some rain and a fresh breeze of 30 kph from the west.

14
°C maximum temperature
8
°C minimum temperature
mostly cloudy with rain
3
hours of sunshine
1
UV index (Low)
71
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
30
kph wind from W

Letterkenny weather for Friday 12th June 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 16°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south-west.

16
°C maximum temperature
11
°C minimum temperature
broken clouds
2
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
16
°C wind chill
21
kph wind from SW

Letterkenny weather for Saturday 13th June 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 19°C, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-west.

19
°C maximum temperature
12
°C minimum temperature
broken clouds
10
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
12
kph wind from SW

Letterkenny weather for Sunday 14th June 2026

Expect isolated thunderstorms in Letterkenny, Ireland with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 12 hours of bright sunshine. There are 0-2 mm of rainfall expected with 22% chance of some rain and a gentle breeze of 17 kph from the south.