Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 59°F. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Thursday
8th Oct
59

48

0

1
Friday
9th Oct
59

50

6

1
Saturday
10th Oct
54

46

5

1
Sunday
11th Oct
54

45

5

1
Monday
12th Oct
59

46

0

2

5-day weather forecast updated at 04:03 on Thursday 8th October 2026 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 Thursday 8th October 2026

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 59°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 99% chance of some rain and a fresh breeze of 19 mph from the south.

59
°F maximum temperature
48
°F minimum temperature
mostly cloudy with rain
0
hours of sunshine
1
UV index (Low)
99
% chance of some rain
<20
mm of rainfall expected
59
°F wind chill
19
mph wind from S

Portstewart weather for Friday 9th October 2026

Expect sunshine and showers in Portstewart, Northern Ireland with a maximum temperature of 59°F, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 50% chance of some rain and a fresh breeze of 23 mph from the west.

59
°F maximum temperature
50
°F minimum temperature
sunshine and showers
6
hours of sunshine
1
UV index (Low)
50
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
23
mph wind from W

Portstewart weather for Saturday 10th October 2026

Expect sunshine and showers in Portstewart, Northern Ireland with a maximum temperature of 54°F, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 71% chance of some rain and a strong breeze of 25 mph from the north-west.

54
°F maximum temperature
46
°F minimum temperature
sunshine and showers
5
hours of sunshine
1
UV index (Low)
71
% chance of some rain
<10
mm of rainfall expected
54
°F wind chill
25
mph wind from NW

Portstewart weather for Sunday 11th October 2026

Expect sunshine and showers in Portstewart, Northern Ireland with a maximum temperature of 54°F, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a fresh breeze of 18 mph from the south-east.

54
°F maximum temperature
45
°F minimum temperature
sunshine and showers
5
hours of sunshine
1
UV index (Low)
25
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
18
mph wind from SE

Portstewart weather for Monday 12th October 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 59°F, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 65% chance of some rain and a fresh breeze of 19 mph from the south.