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Climate change continues to be evident across UK
The UK’s climate has continued to warm, with 2020 the first year to have temperature, rain and sunshine rankings all in the top 10.
Read moreSlieve Gallion (County Londonderry) weather
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Forecast days
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Today. Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 11 degrees Celsius. Light rain changing to cloudy by nighttime. Sunrise: 05:33; Sunset: 21:33. UV: Moderate; Pollution: Low; Pollen: Low.
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Saturday 31 July. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius. Overcast changing to fog by late morning. Sunrise: 05:35; Sunset: 21:31. UV: Moderate; Pollution: Low; Pollen: Low.
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Sunday 1 August. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 6 degrees Celsius. Sunny intervals changing to cloudy by late morning. Sunrise: 05:36; Sunset: 21:29. UV: High; Pollution: Low; Pollen: Low.
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Monday 2 August. Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius. Cloudy. Sunrise: 05:38; Sunset: 21:27. UV: Moderate; Pollution: Low; Pollen: Low.
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Tuesday 3 August. Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Cloudy. Sunrise: 05:40; Sunset: 21:26. UV: Moderate; Pollution: Low; Pollen: Low.
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Wednesday 4 August. Maximum daytime temperature: 14 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Cloudy changing to light showers by late morning. Sunrise: 05:42; Sunset: 21:24. UV: Moderate;
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Thursday 5 August. Maximum daytime temperature: 14 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Cloudy changing to light showers by late morning. Sunrise: 05:44; Sunset: 21:22. UV: Moderate;
Seven day forecast for Slieve Gallion
Today (30 July 2021)
| Time | Now | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
| Chance of precipitation | 60% | 20% | 20% | 20% | 10% | 10% |
| Temperature in degrees Celsius |
12°
|
12°
|
11°
|
11°
|
11°
|
11°
|
| Feels like temperature in degrees Celsius | 9° | 9° | 9° | 9° | 8° | 8° |
| Wind direction and speed in miles per hour |
NW
15
|
NW
17
|
NW
15
|
NW
15
|
NW
15
|
WNW
15
|
| Wind gust in miles per hour | 21 | 22 | 21 | 20 | 22 | 22 |
| Visibility | P | M | VP | M | G | M |
| Humidity | 99% | 100% | 100% | 98% | 97% | 98% |
| UV | 2 | 1 | 1 | 1 | - | - |
Saturday (31 July 2021)
| Time | 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation | 10% | 20% | 20% | 20% | 20% | 10% | 10% | 20% | 20% | 20% | 20% | 20% | 50% | 20% | 10% | <5% | <5% | <5% | <5% | <5% | 10% | 10% | 10% | <5% |
| Temperature in degrees Celsius |
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
12°
|
12°
|
11°
|
11°
|
11°
|
10°
|
9°
|
9°
|
9°
|
| Feels like temperature in degrees Celsius | 8° | 8° | 8° | 8° | 8° | 8° | 8° | 8° | 8° | 8° | 8° | 8° | 8° | 8° | 8° | 9° | 9° | 8° | 8° | 7° | 6° | 6° | 5° | 5° |
| Wind direction and speed in miles per hour |
WNW
15
|
WNW
14
|
WNW
14
|
WNW
15
|
NW
14
|
NW
14
|
NW
14
|
NW
16
|
NW
15
|
NNW
15
|
NNW
15
|
NNW
15
|
NNW
16
|
NNW
16
|
NNW
18
|
NNW
18
|
NNW
19
|
NNW
19
|
NNW
18
|
NNW
18
|
NNW
18
|
NNW
18
|
NNW
19
|
NNW
18
|
| Wind gust in miles per hour | 21 | 19 | 20 | 20 | 20 | 21 | 20 | 21 | 21 | 20 | 21 | 20 | 22 | 22 | 25 | 25 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 25 |
| Visibility | M | VP | VP | VP | VP | M | M | VP | P | VP | VP | VP | VP | P | VG | VG | VG | VG | G | G | VG | G | VG | VG |
| Humidity | 99% | 100% | 99% | 99% | 99% | 99% | 99% | 99% | 99% | 99% | 98% | 97% | 96% | 92% | 88% | 80% | 78% | 78% | 79% | 81% | 82% | 85% | 88% | 87% |
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 3 | 4 | 5 | 5 | 4 | 4 | 3 | 2 | 1 | 1 | 1 | - | - |
Sunday (1 August 2021)
| Time | 00:00 | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
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|
|
|
|
|
| Chance of precipitation | 10% | 10% | 10% | <5% | <5% | 10% | 10% | 10% | <5% |
| Temperature in degrees Celsius |
9°
|
9°
|
8°
|
8°
|
10°
|
11°
|
12°
|
11°
|
8°
|
| Feels like temperature in degrees Celsius | 5° | 5° | 4° | 4° | 6° | 8° | 9° | 8° | 6° |
| Wind direction and speed in miles per hour |
NNW
18
|
NNW
19
|
NNW
18
|
NNW
19
|
N
21
|
N
16
|
N
15
|
N
14
|
NNW
10
|
| Wind gust in miles per hour | 26 | 27 | 27 | 28 | 30 | 25 | 25 | 24 | 16 |
| Visibility | VG | VG | VG | VG | VG | VG | VG | VG | VG |
| Humidity | 87% | 88% | 87% | 88% | 76% | 68% | 64% | 70% | 84% |
| UV | - | - | - | 1 | 3 | 6 | 4 | 1 | - |
Monday (2 August 2021)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
| Chance of precipitation | <5% | 10% | 10% | 10% | 10% | 10% | 10% | 10% |
| Temperature in degrees Celsius |
7°
|
6°
|
8°
|
10°
|
12°
|
13°
|
13°
|
10°
|
| Feels like temperature in degrees Celsius | 5° | 4° | 6° | 9° | 11° | 12° | 12° | 9° |
| Wind direction and speed in miles per hour |
NW
9
|
NW
8
|
WNW
8
|
NNW
6
|
N
4
|
W
4
|
SSE
5
|
NNE
6
|
| Wind gust in miles per hour | 13 | 12 | 11 | 13 | 13 | 12 | 11 | 10 |
| Visibility | VG | VG | VG | VG | VG | VG | VG | VG |
| Humidity | 92% | 94% | 93% | 77% | 69% | 68% | 72% | 90% |
| UV | - | - | 1 | 3 | 4 | 3 | 1 | - |
Tuesday (3 August 2021)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
| Chance of precipitation | <5% | 10% | 10% | 10% | 20% | 20% | 20% | 20% |
| Temperature in degrees Celsius |
8°
|
8°
|
8°
|
11°
|
14°
|
14°
|
13°
|
11°
|
| Feels like temperature in degrees Celsius | 7° | 6° | 6° | 10° | 12° | 12° | 11° | 9° |
| Wind direction and speed in miles per hour |
NE
7
|
S
8
|
S
8
|
S
8
|
S
10
|
S
11
|
S
10
|
ESE
10
|
| Wind gust in miles per hour | 9 | 11 | 12 | 16 | 21 | 21 | 18 | 15 |
| Visibility | VG | G | G | VG | VG | VG | G | G |
| Humidity | 95% | 97% | 95% | 83% | 69% | 70% | 81% | 92% |
| UV | - | - | 1 | 3 | 4 | 3 | 1 | - |
Wednesday (4 August 2021)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
| Chance of precipitation | 20% | 10% | 10% | 40% | 40% | 40% | 40% | 10% |
| Temperature in degrees Celsius |
10°
|
10°
|
10°
|
12°
|
13°
|
14°
|
13°
|
11°
|
| Feels like temperature in degrees Celsius | 8° | 8° | 7° | 10° | 11° | 12° | 12° | 9° |
| Wind direction and speed in miles per hour |
S
12
|
S
11
|
SSW
12
|
SSW
10
|
SW
11
|
SSE
11
|
SSE
9
|
SSW
9
|
| Wind gust in miles per hour | 17 | 16 | 17 | 20 | 21 | 21 | 17 | 14 |
| Visibility | G | G | G | G | G | G | VG | G |
| Humidity | 96% | 97% | 96% | 89% | 81% | 76% | 81% | 93% |
| UV | - | - | 1 | 3 | 5 | 3 | 1 | - |
Thursday (5 August 2021)
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
| Chance of precipitation | 10% | 10% | 20% | 40% | 40% | 50% | 50% | 20% |
| Temperature in degrees Celsius |
10°
|
10°
|
10°
|
11°
|
13°
|
13°
|
12°
|
11°
|
| Feels like temperature in degrees Celsius | 8° | 7° | 7° | 9° | 11° | 11° | 10° | 8° |
| Wind direction and speed in miles per hour |
S
11
|
SE
12
|
SE
13
|
SE
13
|
SW
13
|
W
14
|
WNW
13
|
NW
14
|
| Wind gust in miles per hour | 16 | 18 | 20 | 23 | 25 | 25 | 23 | 22 |
| Visibility | G | G | G | G | G | G | G | G |
| Humidity | 97% | 97% | 96% | 90% | 84% | 84% | 87% | 93% |
| UV | - | - | 1 | 2 | 5 | 4 | 1 | - |
weather map
Slieve Gallion
Detailed weather map
Forecast for HH:mm, EEE
Updated HH:mm (ZZZZ) on EEE dd MMM yyyy
Northern Ireland weather forecast
Headline:
A cloudy start on Saturday, but becoming bright or sunny.
This Evening and Tonight:
Any showers will die out this evening with some bright spells to end the day. Cloud thickening from the north overnight with patchy light possible by dawn. Minimum temperature 10 °C.
Saturday:
A mostly cloudy start with patchy light rain. However, soon dry with bright or sunny spells developing during the day. Maximum temperature 19 °C.
Outlook for Sunday to Tuesday:
Mainly dry with bright or sunny spells on Sunday and Monday. More in the way of showers on Tuesday but still some sunny spells and a southerly breeze developing.
Updated:
UK long range weather forecast
The unsettled, changeable conditions continue to dominate the picture for the first half of August. A mixture of sunny spells and showers, with some drier interludes, is the general pattern expected through this period for all. Some of these showery spells may merge to give slightly longer spells of rain. At first, scattered showers for most, with some thunderstorms likely to develop from these. Torrential downpours are likely in some places. Winds generally remaining breezy, with temperatures expected to be near to average, perhaps slightly above average in northern areas. Through the remainder of this period, it will likely turn settled, though a few showers cannot be ruled out, especially in southeastern areas. Drier weather than recently, with sunny spells for most through to mid-August, with temperatures trending above average.
Updated:
Whilst there are current signals of a drier and warmer than average period from the middle of August, occasional spells of more unsettled weather, primarily in the northwest, remains possible. Accompanying this is a low risk of short-lived thundery spells, these mainly in southeastern parts. Confidence through this period remains low at present. Most should see dry and fine weather, however. Above average temperatures continue to be indicated through the remainder of August, with possibly even very warm conditions at times in southern areas.
Updated:
