Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 48°F. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Monday
22nd Dec
48

45

0

0
Tuesday
23rd Dec
46

43

1

0
Wednesday
24th Dec
43

36

1

0
Thursday
25th Dec
37

32

5

0
Friday
26th Dec
37

30

5

0

5-day weather forecast updated at 04:03 on Monday 22nd December 2025 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 22nd December 2025

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 48°F and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 56% chance of some rain and a light breeze of 4 mph from the north-east.

48
°F maximum temperature
45
°F minimum temperature
mostly cloudy with light rain
0
hours of sunshine
0
UV index (None)
56
% chance of some rain
<2
mm of rainfall expected
46
°F wind chill
4
mph wind from NE

Letterkenny weather for Tuesday 23rd December 2025

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 46°F and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the north.

46
°F maximum temperature
43
°F minimum temperature
broken clouds
1
hour of sunshine
0
UV index (None)
0
mm of rainfall expected
43
°F wind chill
6
mph wind from N

Letterkenny weather for Wednesday 24th December 2025

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 43°F and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the east.

43
°F maximum temperature
36
°F minimum temperature
broken clouds
1
hour of sunshine
0
UV index (None)
0
mm of rainfall expected
39
°F wind chill
7
mph wind from E

Letterkenny weather for Thursday 25th December 2025

Expect scattered clouds in Letterkenny, Ireland with a maximum temperature of 37°F and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 4 mph from the east.

37
°F maximum temperature
32
°F minimum temperature
scattered clouds
5
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
36
°F wind chill
4
mph wind from E

Letterkenny weather for Friday 26th December 2025

Expect scattered clouds in Letterkenny, Ireland with a maximum temperature of 37°F and 5 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 mph from the north.