Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 11°C. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Monday
23rd Mar
11

3

0

2
Tuesday
24th Mar
10

3

1

1
Wednesday
25th Mar
7

2

6

2
Thursday
26th Mar
8

2

1

1
Friday
27th Mar
8

3

3

3

5-day weather forecast updated at 04:03 on Monday 23rd 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 Monday 23rd March 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 11°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 76% chance of some rain and a fresh breeze of 37 kph from the south-west.

11
°C maximum temperature
3
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
2
UV index (Low)
76
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
37
kph wind from SW

Letterkenny weather for Tuesday 24th March 2026

Expect mostly cloudy with rain in Letterkenny, Ireland with a maximum temperature of 10°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 91% chance of some rain and a fresh breeze of 35 kph from the west.

10
°C maximum temperature
3
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
1
UV index (Low)
91
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
35
kph wind from W

Letterkenny weather for Wednesday 25th March 2026

Expect sunshine and showers in Letterkenny, Ireland with a maximum temperature of 7°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 88% chance of some rain and a fresh breeze of 38 kph from the north-west.

7
°C maximum temperature
2
°C minimum temperature
sunshine and showers
6
hours of sunshine
2
UV index (Low)
88
% chance of some rain
<5
mm of rainfall expected
2
°C wind chill
38
kph wind from NW

Letterkenny weather for Thursday 26th March 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 8°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 72% chance of some rain and a gentle breeze of 16 kph from the south.

8
°C maximum temperature
2
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
1
UV index (Low)
72
% chance of some rain
<2
mm of rainfall expected
5
°C wind chill
16
kph wind from S

Letterkenny weather for Friday 27th March 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 8°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 79% chance of some rain and a gentle breeze of 14 kph from the north-west.