Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 16°C. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Friday
3rd Jul
16

12

1

1
Saturday
4th Jul
16

14

0

2
Sunday
5th Jul
16

14

0

1
Monday
6th Jul
17

13

0

2
Tuesday
7th Jul
18

13

0

6

5-day weather forecast updated at 04:03 on Friday 3rd 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 Friday 3rd July 2026

Expect mostly cloudy with rain in Letterkenny, Ireland with a maximum temperature of 16°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 74% chance of some rain and a moderate breeze of 25 kph from the south-west.

16
°C maximum temperature
12
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
1
UV index (Low)
74
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
25
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 16°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 59% chance of some rain and a fresh breeze of 29 kph from the west.

16
°C maximum temperature
14
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
2
UV index (Low)
59
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
29
kph wind from W

Letterkenny weather for Sunday 5th July 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 16°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 54% chance of some rain and a moderate breeze of 26 kph from the south-west.

16
°C maximum temperature
14
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
1
UV index (Low)
54
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
26
kph wind from SW

Letterkenny weather for Monday 6th July 2026

Expect overcast with light rain in Letterkenny, Ireland with a maximum temperature of 17°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 64% chance of some rain and a moderate breeze of 21 kph from the west.

17
°C maximum temperature
13
°C minimum temperature
overcast with light rain
0
hours of sunshine
2
UV index (Low)
64
% chance of some rain
<5
mm of rainfall expected
17
°C wind chill
21
kph wind from W

Letterkenny weather for Tuesday 7th July 2026

Expect overcast with light rain in Letterkenny, Ireland with a maximum temperature of 18°C, maximum UV of 6 (High) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 26% chance of some rain and a gentle breeze of 18 kph from the west.