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.

Wednesday
1st Jul
15

12

1

1
Thursday
2nd Jul
16

11

5

4
Friday
3rd Jul
17

11

1

2
Saturday
4th Jul
17

13

1

1
Sunday
5th Jul
18

12

2

1

5-day weather forecast updated at 04:03 on Wednesday 1st July 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 Wednesday 1st July 2026

Expect cloudy with some rain in Letterkenny, Ireland with a maximum temperature of 15°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 97% chance of some rain and a fresh breeze of 36 kph from the south-west.

15
°C maximum temperature
12
°C minimum temperature
cloudy with some rain
1
hour of sunshine
1
UV index (Low)
97
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
36
kph wind from SW

Letterkenny weather for Thursday 2nd July 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 16°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 30 kph from the west.

16
°C maximum temperature
11
°C minimum temperature
broken clouds
5
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
16
°C wind chill
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 17°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 37% chance of some rain and a moderate breeze of 28 kph from the south-west.

17
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
2
UV index (Low)
37
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
28
kph wind from SW

Letterkenny weather for Saturday 4th July 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 17°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 53% chance of some rain and a moderate breeze of 24 kph from the south-west.

17
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
1
UV index (Low)
53
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
24
kph wind from SW

Letterkenny weather for Sunday 5th July 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 18°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 44% chance of some rain and a gentle breeze of 19 kph from the west.