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.

Saturday
14th Nov
48

34

1

1
Sunday
15th Nov
46

36

3

0
Monday
16th Nov
39

32

2

1
Tuesday
17th Nov
48

37

3

0
Wednesday
18th Nov
46

37

0

0

5-day weather forecast updated at 04:03 on Saturday 14th November 2026 GMT

More about Letterkenny

Letterkenny by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Ireland

Fred Olsen: Top cruise offers for 2026/2027

Sale

Explore latest offers on Fred Olsen Cruises in 2026/2027
Find last minute deals or early bird discounts
Filter offers by price, destination, ship & departure point

Go to Fred Olsen deal >>

View all Fred Olsen offers

Cruise deal finder

Destination

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 14th November 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 0-2 mm of rainfall expected with 87% chance of some rain and a moderate breeze of 16 mph from the south.

48
°F maximum temperature
34
°F minimum temperature
mostly cloudy with light rain
1
hour of sunshine
1
UV index (Low)
87
% chance of some rain
<2
mm of rainfall expected
41
°F wind chill
16
mph wind from S

Letterkenny weather for Sunday 15th November 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 46°F and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 37% chance of some rain and a fresh breeze of 19 mph from the north.

46
°F maximum temperature
36
°F minimum temperature
mostly cloudy with light rain
3
hours of sunshine
0
UV index (None)
37
% chance of some rain
<2
mm of rainfall expected
37
°F wind chill
19
mph wind from N

Letterkenny weather for Monday 16th November 2026

Expect cloudy with sleet or snow in Letterkenny, Ireland with a maximum temperature of 39°F, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 5-10 mm of sleet/snow expected with 91% chance of some sleet or snow and a fresh breeze of 21 mph from the south-east.

39
°F maximum temperature
32
°F minimum temperature
cloudy with sleet or snow
2
hours of sunshine
1
UV index (Low)
91
% chance of some sleet or snow
<10
mm of sleet/snow expected
30
°F wind chill
21
mph wind from SE

Letterkenny weather for Tuesday 17th November 2026

Expect cloudy with sleet or snow in Letterkenny, Ireland with a maximum temperature of 48°F and 3 hours of bright sunshine. There are 5-10 mm of sleet/snow expected with 73% chance of some sleet or snow and a moderate breeze of 16 mph from the south-west.

48
°F maximum temperature
37
°F minimum temperature
cloudy with sleet or snow
3
hours of sunshine
0
UV index (None)
73
% chance of some sleet or snow
<10
mm of sleet/snow expected
41
°F wind chill
16
mph wind from SW

Letterkenny weather for Wednesday 18th November 2026

Expect overcast with light rain in Letterkenny, Ireland with a maximum temperature of 46°F and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 41% chance of some rain and a moderate breeze of 12 mph from the east.