Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 8°C. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Saturday
14th Mar
8

3

2

1
Sunday
15th Mar
7

4

3

2
Monday
16th Mar
10

4

0

1
Tuesday
17th Mar
10

5

7

1
Wednesday
18th Mar
11

3

6

2

5-day weather forecast updated at 04:03 on Friday 13th March 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 Saturday 14th March 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 8°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 62% chance of some rain and a moderate breeze of 23 kph from the west.

8
°C maximum temperature
3
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
1
UV index (Low)
62
% chance of some rain
<2
mm of rainfall expected
5
°C wind chill
23
kph wind from W

Letterkenny weather for Sunday 15th March 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 7°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 88% chance of some rain and a strong breeze of 41 kph from the west.

7
°C maximum temperature
4
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
2
UV index (Low)
88
% chance of some rain
<5
mm of rainfall expected
3
°C wind chill
41
kph wind from W

Letterkenny weather for Monday 16th March 2026

Expect mostly cloudy with rain in Letterkenny, Ireland with a maximum temperature of 10°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 86% chance of some rain and a fresh breeze of 32 kph from the south.

10
°C maximum temperature
4
°C minimum temperature
mostly cloudy with rain
0
hours of sunshine
1
UV index (Low)
86
% chance of some rain
<10
mm of rainfall expected
6
°C wind chill
32
kph wind from S

Letterkenny weather for Tuesday 17th March 2026

Expect sunshine and showers in Letterkenny, Ireland with a maximum temperature of 10°C, maximum UV of 1 (Low) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 75% chance of some rain and a moderate breeze of 28 kph from the south.

10
°C maximum temperature
5
°C minimum temperature
sunshine and showers
7
hours of sunshine
1
UV index (Low)
75
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
28
kph wind from S

Letterkenny weather for Wednesday 18th March 2026

Expect scattered clouds in Letterkenny, Ireland with a maximum temperature of 11°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 30 kph from the south.