Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 18°C. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Monday
29th Jun
18

11

1

4
Tuesday
30th Jun
17

12

2

4
Wednesday
1st Jul
16

11

2

3
Thursday
2nd Jul
16

11

3

2
Friday
3rd Jul
19

10

5

3

5-day weather forecast updated at 04:03 on Monday 29th June 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 29th June 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 18°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 85% chance of some rain and a moderate breeze of 24 kph from the south-west.

18
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
4
UV index (Moderate)
85
% chance of some rain
<5
mm of rainfall expected
18
°C wind chill
24
kph wind from SW

Letterkenny weather for Tuesday 30th June 2026

Expect mostly cloudy with rain in Letterkenny, Ireland with a maximum temperature of 17°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 69% chance of some rain and a gentle breeze of 17 kph from the north-west.

17
°C maximum temperature
12
°C minimum temperature
mostly cloudy with rain
2
hours of sunshine
4
UV index (Moderate)
69
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
17
kph wind from NW

Letterkenny weather for Wednesday 1st July 2026

Expect mostly cloudy with rain in Letterkenny, Ireland with a maximum temperature of 16°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 74% chance of some rain and a fresh breeze of 29 kph from the south-west.

16
°C maximum temperature
11
°C minimum temperature
mostly cloudy with rain
2
hours of sunshine
3
UV index (Moderate)
74
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
29
kph wind from SW

Letterkenny weather for Thursday 2nd July 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 16°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 34% chance of some rain and a fresh breeze of 30 kph from the west.

16
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
2
UV index (Low)
34
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
30
kph wind from W

Letterkenny weather for Friday 3rd July 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 38% chance of some rain and a moderate breeze of 21 kph from the south-west.