Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 66°F. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Friday
10th Jul
66

55

1

3
Saturday
11th Jul
64

54

4

3
Sunday
12th Jul
77

57

10

6
Monday
13th Jul
77

57

16

6
Tuesday
14th Jul
73

55

8

6

5-day weather forecast updated at 04:03 on Friday 10th 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 10th July 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 66°F, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 14 mph from the north.

66
°F maximum temperature
55
°F minimum temperature
broken clouds
1
hour of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
14
mph wind from N

Letterkenny weather for Saturday 11th July 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 64°F, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 13 mph from the north.

64
°F maximum temperature
54
°F minimum temperature
broken clouds
4
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
13
mph wind from N

Letterkenny weather for Sunday 12th July 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 77°F, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 14 mph from the east.

77
°F maximum temperature
57
°F minimum temperature
broken clouds
10
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
14
mph wind from E

Letterkenny weather for Monday 13th July 2026

Expect clear skies in Letterkenny, Ireland with a maximum temperature of 77°F, maximum UV of 6 (High) and 16 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 15 mph from the east.

77
°F maximum temperature
57
°F minimum temperature
clear skies
16
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
77
°F wind chill
15
mph wind from E

Letterkenny weather for Tuesday 14th July 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 73°F, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the east.