Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 57°F. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Saturday
18th Oct
57

52

0

1
Sunday
19th Oct
57

52

2

1
Monday
20th Oct
54

50

1

1
Tuesday
21st Oct
52

46

3

1
Wednesday
22nd Oct
52

45

0

1

5-day weather forecast updated at 04:03 on Saturday 18th October 2025 GMT

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

Portstewart weather forecast by day

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

Portstewart weather for Saturday 18th October 2025

Expect overcast skies in Portstewart, Northern Ireland with a maximum temperature of 57°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 21 mph from the south-east.

57
°F maximum temperature
52
°F minimum temperature
overcast skies
0
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
21
mph wind from SE

Portstewart weather for Sunday 19th October 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 57°F, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 94% chance of some rain and a strong breeze of 26 mph from the south-east.

57
°F maximum temperature
52
°F minimum temperature
mostly cloudy with light rain
2
hours of sunshine
1
UV index (Low)
94
% chance of some rain
<5
mm of rainfall expected
57
°F wind chill
26
mph wind from SE

Portstewart weather for Monday 20th October 2025

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 54°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 58% chance of some rain and a fresh breeze of 21 mph from the north-west.

54
°F maximum temperature
50
°F minimum temperature
mostly cloudy with rain
1
hour of sunshine
1
UV index (Low)
58
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
21
mph wind from NW

Portstewart weather for Tuesday 21st October 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 52°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 53% chance of some rain and a fresh breeze of 24 mph from the north-west.

52
°F maximum temperature
46
°F minimum temperature
mostly cloudy with light rain
3
hours of sunshine
1
UV index (Low)
53
% chance of some rain
<5
mm of rainfall expected
52
°F wind chill
24
mph wind from NW

Portstewart weather for Wednesday 22nd October 2025

Expect overcast with light rain in Portstewart, Northern Ireland with a maximum temperature of 52°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 76% chance of some rain and a fresh breeze of 22 mph from the east.