Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 46°F. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Friday
3rd Apr
46

37

4

2
Saturday
4th Apr
48

36

2

1
Sunday
5th Apr
43

34

8

3
Monday
6th Apr
50

32

2

2
Tuesday
7th Apr
54

45

0

1

5-day weather forecast updated at 04:03 on Friday 3rd 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 3rd April 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 46°F, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 76% chance of some rain and a fresh breeze of 19 mph from the west.

46
°F maximum temperature
37
°F minimum temperature
mostly cloudy with light rain
4
hours of sunshine
2
UV index (Low)
76
% chance of some rain
<5
mm of rainfall expected
39
°F wind chill
19
mph wind from W

Letterkenny weather for Saturday 4th April 2026

Expect mostly cloudy with rain in Letterkenny, Ireland with a maximum temperature of 48°F, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 99% chance of some rain and a strong breeze of 27 mph from the south.

48
°F maximum temperature
36
°F minimum temperature
mostly cloudy with rain
2
hours of sunshine
1
UV index (Low)
99
% chance of some rain
<20
mm of rainfall expected
39
°F wind chill
27
mph wind from S

Letterkenny weather for Sunday 5th April 2026

Expect cloudy with sleet or snow in Letterkenny, Ireland with a maximum temperature of 43°F, maximum UV of 3 (Moderate) and 8 hours of bright sunshine. There are 0-2 mm of sleet/snow expected with 61% chance of some sleet or snow and a fresh breeze of 23 mph from the west.

43
°F maximum temperature
34
°F minimum temperature
cloudy with sleet or snow
8
hours of sunshine
3
UV index (Moderate)
61
% chance of some sleet or snow
<2
mm of sleet/snow expected
34
°F wind chill
23
mph wind from W

Letterkenny weather for Monday 6th April 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 50°F, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 22 mph from the south-east.

50
°F maximum temperature
32
°F minimum temperature
broken clouds
2
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
22
mph wind from SE

Letterkenny weather for Tuesday 7th April 2026

Expect cloudy with some rain in Letterkenny, Ireland with a maximum temperature of 54°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 80% chance of some rain and a moderate breeze of 17 mph from the south-east.