Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 15°C. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Monday
26th Oct
15

6

0

0
Tuesday
27th Oct
10

8

4

1
Wednesday
28th Oct
14

9

4

1
Thursday
29th Oct
12

9

2

1
Friday
30th Oct
13

8

0

1

5-day weather forecast updated at 04:03 on Monday 26th 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 Monday 26th October 2026

Expect mostly cloudy with rain in Letterkenny, Ireland with a maximum temperature of 15°C and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 96% chance of some rain and a fresh breeze of 35 kph from the south.

15
°C maximum temperature
6
°C minimum temperature
mostly cloudy with rain
0
hours of sunshine
0
UV index (None)
96
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
35
kph wind from S

Letterkenny weather for Tuesday 27th October 2026

Expect sunshine and showers in Letterkenny, Ireland with a maximum temperature of 10°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 71% chance of some rain and a strong breeze of 45 kph from the south-west.

10
°C maximum temperature
8
°C minimum temperature
sunshine and showers
4
hours of sunshine
1
UV index (Low)
71
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
45
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 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 41% chance of some rain and a fresh breeze of 30 kph from the south-west.

14
°C maximum temperature
9
°C minimum temperature
sunshine and showers
4
hours of sunshine
1
UV index (Low)
41
% 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 mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 12°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 36% chance of some rain and a moderate breeze of 27 kph from the south.

12
°C maximum temperature
9
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
1
UV index (Low)
36
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
27
kph wind from S

Letterkenny weather for Friday 30th October 2026

Expect mostly cloudy with rain in Letterkenny, Ireland with a maximum temperature of 13°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 66% chance of some rain and a moderate breeze of 27 kph from the south.