Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 57°F. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Wednesday
10th Jun
57

46

5

4
Thursday
11th Jun
59

50

0

1
Friday
12th Jun
61

50

3

3
Saturday
13th Jun
61

50

2

4
Sunday
14th Jun
70

54

5

6

5-day weather forecast updated at 04:03 on Wednesday 10th 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 57°F, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 69% chance of some rain and a moderate breeze of 14 mph from the west.

57
°F maximum temperature
46
°F minimum temperature
mostly cloudy with light rain
5
hours of sunshine
4
UV index (Moderate)
69
% chance of some rain
<5
mm of rainfall expected
57
°F wind chill
14
mph wind from W

Letterkenny weather for Thursday 11th June 2026

Expect cloudy with some rain in Letterkenny, Ireland with a maximum temperature of 59°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 76% chance of some rain and a moderate breeze of 16 mph from the west.

59
°F maximum temperature
50
°F minimum temperature
cloudy with some rain
0
hours of sunshine
1
UV index (Low)
76
% chance of some rain
<10
mm of rainfall expected
59
°F wind chill
16
mph wind from W

Letterkenny weather for Friday 12th June 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 61°F, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 31% chance of some rain and a fresh breeze of 21 mph from the west.

61
°F maximum temperature
50
°F minimum temperature
mostly cloudy with light rain
3
hours of sunshine
3
UV index (Moderate)
31
% chance of some rain
<2
mm of rainfall expected
61
°F wind chill
21
mph wind from W

Letterkenny weather for Saturday 13th June 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 61°F, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the west.

61
°F maximum temperature
50
°F minimum temperature
broken clouds
2
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
7
mph wind from W

Letterkenny weather for Sunday 14th June 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 70°F, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the south-west.