Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 57°F. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Saturday
21st Mar
57

37

3

1
Sunday
22nd Mar
50

39

2

2
Monday
23rd Mar
52

37

0

2
Tuesday
24th Mar
48

39

1

1
Wednesday
25th Mar
45

37

3

2

5-day weather forecast updated at 04:03 on Saturday 21st March 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 Saturday 21st March 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 57°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 8 mph from the south-west.

57
°F maximum temperature
37
°F minimum temperature
broken clouds
3
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
57
°F wind chill
8
mph wind from SW

Letterkenny weather for Sunday 22nd March 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 50°F, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 16 mph from the north-west.

50
°F maximum temperature
39
°F minimum temperature
broken clouds
2
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
16
mph wind from NW

Letterkenny weather for Monday 23rd March 2026

Expect overcast skies in Letterkenny, Ireland with a maximum temperature of 52°F, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 23 mph from the south.

52
°F maximum temperature
37
°F minimum temperature
overcast skies
0
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
52
°F wind chill
23
mph wind from S

Letterkenny weather for Tuesday 24th March 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 48°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 77% chance of some rain and a fresh breeze of 21 mph from the west.

48
°F maximum temperature
39
°F minimum temperature
mostly cloudy with light rain
1
hour of sunshine
1
UV index (Low)
77
% chance of some rain
<5
mm of rainfall expected
41
°F wind chill
21
mph wind from W

Letterkenny weather for Wednesday 25th March 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 45°F, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 81% chance of some rain and a moderate breeze of 17 mph from the north-west.