Donegal weather live forecast

Today's maximum temperature in Donegal is expected to be 19°C. Select a day from the live weather forecast for Donegal, Ireland for more weather parameters.

Wednesday
26th Aug
19

15

3

2
Thursday
27th Aug
21

15

5

3
Friday
28th Aug
18

13

4

2
Saturday
29th Aug
16

12

2

2
Sunday
30th Aug
16

11

6

3

5-day weather forecast updated at 04:00 on Wednesday 26th August 2026 GMT

More about Donegal

Donegal 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 (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 Wednesday 26th August 2026

Expect mostly cloudy with rain in Donegal, Ireland with a maximum temperature of 19°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 43% chance of some rain and a moderate breeze of 24 kph from the south-east.

19
°C maximum temperature
15
°C minimum temperature
mostly cloudy with rain
3
hours of sunshine
2
UV index (Low)
43
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
24
kph wind from SE

Donegal weather for Thursday 27th August 2026

Expect isolated thunderstorms in Donegal, Ireland with a maximum temperature of 21°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 53% chance of some rain and a gentle breeze of 15 kph from the north-east.

21
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
3
UV index (Moderate)
53
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
15
kph wind from NE

Donegal weather for Friday 28th August 2026

Expect mostly cloudy with light rain in Donegal, Ireland with a maximum temperature of 18°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 49% chance of some rain and a moderate breeze of 22 kph from the north-west.

18
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
2
UV index (Low)
49
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
22
kph wind from NW

Donegal weather for Saturday 29th August 2026

Expect mostly cloudy with light rain in Donegal, Ireland with a maximum temperature of 16°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 56% chance of some rain and a light breeze of 11 kph from the west.

16
°C maximum temperature
12
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
2
UV index (Low)
56
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
11
kph wind from W

Donegal weather for Sunday 30th August 2026

Expect broken clouds in Donegal, Ireland with a maximum temperature of 16°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the west.