Currently: 55 °F. Drizzle. Overcast. (Weather station: Castlederg, United Kingdom). See more current weatherPast Weather in Portstewart — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
47
50
53
56
59
62
65
68
71
74
Thu, Aug 14
Lo:55
12 am
Hi:59
2
Lo:55
6 am
Hi:64
2
Lo:64
12 pm
Hi:72
4
Lo:54
6 pm
Hi:66
3
Fri, Aug 15
Lo:50
12 am
Hi:54
2
Lo:52
6 am
Hi:68
2
Lo:68
12 pm
Hi:70
5
Lo:57
6 pm
Hi:70
4
Sat, Aug 16
Lo:57
12 am
Hi:57
3
Lo:57
6 am
Hi:66
5
Lo:66
12 pm
Hi:72
9
Lo:54
6 pm
Hi:72
5
Sun, Aug 17
Lo:48
12 am
Hi:54
1
Lo:48
6 am
Hi:70
4
Lo:70
12 pm
Hi:75
9
Lo:55
6 pm
Hi:73
5
Mon, Aug 18
Lo:50
12 am
Hi:57
2
Lo:50
6 am
Hi:64
5
Lo:64
12 pm
Hi:72
7
Lo:55
6 pm
Hi:72
4
Tue, Aug 19
Lo:54
12 am
Hi:55
1
Lo:54
6 am
Hi:68
4
Lo:68
12 pm
Hi:72
8
Lo:61
6 pm
Hi:70
5
Wed, Aug 20
Lo:55
12 am
Hi:61
4
Lo:55
6 am
Hi:63
4
Lo:63
12 pm
Hi:66
4
Lo:55
6 pm
Hi:66
2
Thu, Aug 21
Lo:52
12 am
Hi:55
2
Lo:52
6 am
Hi:63
1
Lo:63
12 pm
Hi:64
4
Lo:57
6 pm
Hi:64
2
Fri, Aug 22
Lo:54
12 am
Hi:57
1
Lo:54
6 am
Hi:63
1
Lo:63
12 pm
Hi:66
2
Lo:61
6 pm
Hi:64
2
Sat, Aug 23
Lo:61
12 am
Hi:61
2
Lo:61
6 am
Hi:68
4
Lo:66
12 pm
Hi:70
4
Lo:63
6 pm
Hi:68
4
Sun, Aug 24
Lo:63
12 am
Hi:63
2
Lo:63
6 am
Hi:66
6
Lo:66
12 pm
Hi:70
9
Lo:59
6 pm
Hi:68
5
Mon, Aug 25
Lo:57
12 am
Hi:59
7
Lo:59
6 am
Hi:70
11
Lo:64
12 pm
Hi:70
11
Lo:57
6 pm
Hi:66
7
Tue, Aug 26
Lo:57
12 am
Hi:59
7
Lo:57
6 am
Hi:63
8
Lo:61
12 pm
Hi:66
9
Lo:55
6 pm
Hi:63
7
Wed, Aug 27
Lo:52
12 am
Hi:55
6
Lo:54
6 am
Hi:64
6
Lo:59
12 pm
Hi:64
9
Lo:57
6 pm
Hi:59
7
Thu, Aug 28
Lo:55
12 am
Hi:57
7
Lo:55
6 am
Hi:57
7
Lo:57
12 pm
Hi:59
9
Lo:55
6 pm
Hi:61
7
Fri, Aug 29
Lo:55
12 am
Hi:55
6
Thursday, August 14, 2025, 12:00 am — 6:00 am
59 / 55 °F
Low clouds.
Humidity: 98%
Barometer: 29.91 "Hg
W
Wind: 2.486 mph
Portstewart Temperature Yesterday
Maximum temperature yesterday: 60 °F (at 7:00 pm)
Minimum temperature yesterday: 55 °F (at 11:00 pm)
Average temperature yesterday: 57 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 75 °F (Aug 17, 5:00 pm) | 100% (Aug 15, 8:00 am) | 30.43 "Hg (Aug 15, 8:00 am) |
| Low | 48 °F (Aug 17, 6:00 am) | 47% (Aug 17, 5:00 pm) | 29.21 "Hg (Aug 28, 5:00 pm) |
| Average | 61 °F | 84% | 29.98 "Hg |
| * Reported Aug 14 12:00 am — Aug 29 12:00 am, Portstewart. Weather by CustomWeather, © 2025 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
Portstewart Weather History for the Previous 24 Hours
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 12:00 am Fri, Aug 29 | | 55 °F | Light rain. Overcast. | 6 mph | ↑ | 94% | 29.21 "Hg | 11 mi |
| 11:00 pm Thu, Aug 28 |  | 55 °F | Passing clouds. | 7 mph | ↑ | 93% | 29.21 "Hg | 19 mi |
| 10:00 pm | | 56 °F | Light rain. Overcast. | 7 mph | ↑ | 94% | 29.21 "Hg | 16 mi |
| 9:00 pm | | 56 °F | Passing clouds. | 6 mph | ↑ | 90% | 29.21 "Hg | 19 mi |
| 8:00 pm |  | 57 °F | Overcast. | 8 mph | ↑ | 89% | 29.21 "Hg | 19 mi |
| 7:00 pm | | 60 °F | Overcast. | 7 mph | ↑ | 86% | 29.21 "Hg | 22 mi |
| 6:00 pm |  | 59 °F | Light rain. Overcast. | 6 mph | ↑ | 91% | 29.21 "Hg | 37 mi |
| 5:00 pm | | 58 °F | Overcast. | 9 mph | ↑ | 90% | 29.21 "Hg | 40 mi |
| 4:00 pm | | 58 °F | Light rain. Overcast. | 9 mph | ↑ | 89% | 29.23 "Hg | 28 mi |
| 3:00 pm | | 57 °F | Light rain. Overcast. | 13 mph | ↑ | 90% | 29.23 "Hg | 8 mi |
| 2:00 pm | | 56 °F | Light rain. Overcast. | 12 mph | ↑ | 88% | 29.26 "Hg | 8 mi |
| 1:00 pm | | 56 °F | Light rain. Overcast. | 10 mph | ↑ | 89% | 29.26 "Hg | 6 mi |
| 12:00 pm | | 56 °F | Light rain. Overcast. | 8 mph | ↑ | 88% | 29.26 "Hg | 17 mi |
| 11:00 am | | 58 °F | Light rain. Overcast. | 9 mph | ↑ | 89% | 29.29 "Hg | 19 mi |
| 10:00 am | | 56 °F | Light rain. Overcast. | 8 mph | ↑ | 91% | 29.29 "Hg | 25 mi |
| 9:00 am | | 57 °F | Light rain. Overcast. | 7 mph | ↑ | 92% | 29.29 "Hg | 11 mi |
| 8:00 am | | 56 °F | Light rain. Partly sunny. | 5 mph | ↑ | 96% | 29.29 "Hg | 2 mi |
| 7:00 am | | 56 °F | Light rain. Overcast. | 7 mph | ↑ | 94% | 29.29 "Hg | 8 mi |
| 6:00 am | | 56 °F | Light rain. Overcast. | 7 mph | ↑ | 93% | 29.29 "Hg | 11 mi |
| 5:00 am | | 56 °F | Light rain. Overcast. | 8 mph | ↑ | 93% | 29.32 "Hg | 6 mi |
| 4:00 am | | 56 °F | Light rain. Overcast. | 7 mph | ↑ | 92% | 29.32 "Hg | 14 mi |
| 3:00 am | | 56 °F | Drizzle. Overcast. | 7 mph | ↑ | 90% | 29.35 "Hg | 19 mi |
| 2:00 am | | 56 °F | Light rain. Overcast. | 9 mph | ↑ | 89% | 29.35 "Hg | 16 mi |
| Weather by CustomWeather, © 2025 | ||||||||