Donegal weather live forecast

Today's maximum temperature in Donegal is expected to be 18°C. Select a day from the live weather forecast for Donegal, Ireland for more weather parameters.

Saturday
29th Aug
18

12

4

1
Sunday
30th Aug
17

13

1

2
Monday
31st Aug
16

12

3

3
Tuesday
1st Sep
17

12

1

2
Wednesday
2nd Sep
17

12

4

2

5-day weather forecast updated at 04:00 on Saturday 29th August 2026 GMT

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The 5-day weather forecast for Ireland (Donegal) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Donegal weather forecast by day

Below are the detailed weather forecasts for Donegal for the next 5 days.

Donegal weather for Saturday 29th August 2026

Expect mostly cloudy with light rain in Donegal, Ireland with a maximum temperature of 18°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 53% chance of some rain and a light breeze of 11 kph from the west.

18
°C maximum temperature
12
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
1
UV index (Low)
53
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
11
kph wind from W

Donegal weather for Sunday 30th August 2026

Expect isolated thunderstorms in Donegal, Ireland with a maximum temperature of 17°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 98% chance of some rain and a light breeze of 10 kph from the south-east.

17
°C maximum temperature
13
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
2
UV index (Low)
98
% chance of some rain
<10
mm of rainfall expected
17
°C wind chill
10
kph wind from SE

Donegal weather for Monday 31st August 2026

Expect mostly cloudy with light rain in Donegal, Ireland with a maximum temperature of 16°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 58% chance of some rain and a moderate breeze of 23 kph from the north-west.

16
°C maximum temperature
12
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
3
UV index (Moderate)
58
% chance of some rain
<2
mm of rainfall expected
16
°C wind chill
23
kph wind from NW

Donegal weather for Tuesday 1st September 2026

Expect mostly cloudy with rain in Donegal, Ireland with a maximum temperature of 17°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 62% chance of some rain and a fresh breeze of 29 kph from the south-west.

17
°C maximum temperature
12
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
2
UV index (Low)
62
% chance of some rain
<10
mm of rainfall expected
17
°C wind chill
29
kph wind from SW

Donegal weather for Wednesday 2nd September 2026

Expect mostly cloudy with rain in Donegal, Ireland with a maximum temperature of 17°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 74% chance of some rain and a fresh breeze of 35 kph from the south-west.