Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 6°C. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Friday
16th Jan
6

2

1

0
Saturday
17th Jan
7

3

1

0
Sunday
18th Jan
5

3

0

0
Monday
19th Jan
7

3

2

0
Tuesday
20th Jan
6

2

1

0

5-day weather forecast updated at 04:05 on Friday 16th January 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 16th January 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 6°C and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 21% chance of some rain and a moderate breeze of 21 kph from the south-east.

6
°C maximum temperature
2
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
0
UV index (None)
21
% chance of some rain
<2
mm of rainfall expected
3
°C wind chill
21
kph wind from SE

Letterkenny weather for Saturday 17th January 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 7°C and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 15% chance of some rain and a light breeze of 7 kph from the south-east.

7
°C maximum temperature
3
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
0
UV index (None)
15
% chance of some rain
<2
mm of rainfall expected
6
°C wind chill
7
kph wind from SE

Letterkenny weather for Sunday 18th January 2026

Expect overcast with light rain in Letterkenny, Ireland with a maximum temperature of 5°C and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 18% chance of some rain and a moderate breeze of 22 kph from the south.

5
°C maximum temperature
3
°C minimum temperature
overcast with light rain
0
hours of sunshine
0
UV index (None)
18
% chance of some rain
<2
mm of rainfall expected
0
°C wind chill
22
kph wind from S

Letterkenny weather for Monday 19th January 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 7°C and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 28% chance of some rain and a moderate breeze of 25 kph from the south.

7
°C maximum temperature
3
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
0
UV index (None)
28
% chance of some rain
<2
mm of rainfall expected
3
°C wind chill
25
kph wind from S

Letterkenny weather for Tuesday 20th January 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 6°C and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 39% chance of some rain and a light breeze of 11 kph from the south.