Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 55°F. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Friday
5th Jun
55

46

2

3
Saturday
6th Jun
55

48

0

2
Sunday
7th Jun
57

48

5

3
Monday
8th Jun
55

46

6

3
Tuesday
9th Jun
55

45

3

5

5-day weather forecast updated at 04:03 on Friday 5th 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 Friday 5th June 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 55°F, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 87% chance of some rain and a moderate breeze of 12 mph from the south-west.

55
°F maximum temperature
46
°F minimum temperature
mostly cloudy with light rain
2
hours of sunshine
3
UV index (Moderate)
87
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
12
mph wind from SW

Letterkenny weather for Saturday 6th June 2026

Expect cloudy with some rain in Letterkenny, Ireland with a maximum temperature of 55°F, maximum UV of 2 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 84% chance of some rain and a gentle breeze of 10 mph from the south-east.

55
°F maximum temperature
48
°F minimum temperature
cloudy with some rain
0
hours of sunshine
2
UV index (Low)
84
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
10
mph wind from SE

Letterkenny weather for Sunday 7th June 2026

Expect mostly cloudy with rain in Letterkenny, Ireland with a maximum temperature of 57°F, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 92% chance of some rain and a moderate breeze of 16 mph from the south-west.

57
°F maximum temperature
48
°F minimum temperature
mostly cloudy with rain
5
hours of sunshine
3
UV index (Moderate)
92
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
16
mph wind from SW

Letterkenny weather for Monday 8th June 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 55°F, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 82% chance of some rain and a moderate breeze of 13 mph from the south-west.

55
°F maximum temperature
46
°F minimum temperature
mostly cloudy with light rain
6
hours of sunshine
3
UV index (Moderate)
82
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
13
mph wind from SW

Letterkenny weather for Tuesday 9th June 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 55°F, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 85% chance of some rain and a moderate breeze of 12 mph from the west.