Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 79°F. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

5-day weather forecast updated at 04:04 on Tuesday 12th August 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 Tuesday 12th August 2025

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 79°F, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the south.

  • 79°F maximum temperature79
    °F maximum temperature
  • 59°F minimum temperature59
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 79°F wind chill79
    °F wind chill
  • Light breeze of 6 mph from the South6
    mph wind from S

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Letterkenny weather for Wednesday 13th August 2025

Expect isolated thunderstorms in Letterkenny, Ireland with a maximum temperature of 77°F, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 26% chance of some rain and a light breeze of 6 mph from the south.

  • 77°F maximum temperature77
    °F maximum temperature
  • 59°F minimum temperature59
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 26% chance of some rain26
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 77°F wind chill77
    °F wind chill
  • Light breeze of 6 mph from the South6
    mph wind from S

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Letterkenny weather for Thursday 14th August 2025

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 66°F, maximum UV of 3 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 12 mph from the west.

  • 66°F maximum temperature66
    °F maximum temperature
  • 55°F minimum temperature55
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 12 mph from the West12
    mph wind from W

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Letterkenny weather for Friday 15th August 2025

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 70°F, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the north.

  • 70°F maximum temperature70
    °F maximum temperature
  • 54°F minimum temperature54
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 70°F wind chill70
    °F wind chill
  • Gentle breeze of 9 mph from the North9
    mph wind from N

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Letterkenny weather for Saturday 16th August 2025

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 72°F, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the north-east.

  • 72°F maximum temperature72
    °F maximum temperature
  • 54°F minimum temperature54
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 9 mph from the North-East9
    mph wind from NE

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