Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 10°C. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Tuesday
27th Oct
10

8

3

1
Wednesday
28th Oct
14

10

5

1
Thursday
29th Oct
13

10

2

1
Friday
30th Oct
12

7

1

1
Saturday
31st Oct
11

6

4

1

5-day weather forecast updated at 04:02 on Tuesday 27th October 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 Tuesday 27th October 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 10°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 95% chance of some rain and a strong breeze of 44 kph from the south-west.

10
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
1
UV index (Low)
95
% chance of some rain
<5
mm of rainfall expected
6
°C wind chill
44
kph wind from SW

Letterkenny weather for Wednesday 28th October 2026

Expect sunshine and showers in Letterkenny, Ireland with a maximum temperature of 14°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 23% chance of some rain and a fresh breeze of 30 kph from the south-west.

14
°C maximum temperature
10
°C minimum temperature
sunshine and showers
5
hours of sunshine
1
UV index (Low)
23
% chance of some rain
<5
mm of rainfall expected
14
°C wind chill
30
kph wind from SW

Letterkenny weather for Thursday 29th October 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 13°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 33 kph from the south.

13
°C maximum temperature
10
°C minimum temperature
broken clouds
2
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
33
kph wind from S

Letterkenny weather for Friday 30th October 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 12°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 55% chance of some rain and a fresh breeze of 32 kph from the south.

12
°C maximum temperature
7
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
1
UV index (Low)
55
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
32
kph wind from S

Letterkenny weather for Saturday 31st October 2026

Expect fog in low lying areas in Letterkenny, Ireland with a maximum temperature of 11°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-west.