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Glasfynydd (Usk Reservoir)

  • Light rain 2 °C

    1 °C

  • Heavy rain 6 °C

    1 °C

  • Sleet shower day 3 °C

    1 °C

  • Sunny day 4 °C

    0 °C

  • Light rain 4 °C

    -1 °C

  • Light rain 7 °C

    4 °C

  • Cloudy 7 °C

    4 °C

Tuesday (Tuesday 12 December 2017)
Now 19:00 20:00 21:00 22:00 23:00
Warnings
Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Fog
90% ≥95% 90% 90% 90% 30%
Temperature (°C)
1 ° 2 ° 2 ° 3 ° 3 ° 3 °
Show detail Show detail
Feels like temperature (°C) Expand
-4 ° -3 ° -2 ° -2 ° 0 ° -1 °
Wind direction, speed & gust (mph) Expand
SSW 15 33 SSW 14 32 SSW 14 32 SSW 16 35 WSW 10 22 WNW 10 22
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G M P P VP VP
Humidity Expand
97% 98% 97% 97% 100% 99%
UV index Expand
Sunrise: 08:13 Sunset: 16:04 Moon phase: Third quarter Air pollution: 3
Wednesday (Wednesday 13 December 2017)
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
Warnings
Cloudy Fog Fog Mist Cloudy Drizzle Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Light rain Light shower day Light shower day Light shower night Heavy rain Sleet shower Sleet shower Sleet shower Light snow Sleet shower Light shower night
10% 20% 20% 20% 10% 30% 90% 80% 90% 90% 90% 90% 50% 50% 30% 30% 30% 80% 70% 60% 40% 50% 50% 30%
Temperature (°C)
3 ° 2 ° 2 ° 3 ° 3 ° 3 ° 3 ° 4 ° 4 ° 4 ° 5 ° 5 ° 4 ° 4 ° 3 ° 3 ° 3 ° 3 ° 2 ° 2 ° 1 ° 1 ° 1 ° 2 °
Show detail Show detail
Feels like temperature (°C) Expand
-1 ° -1 ° -2 ° -2 ° -1 ° -1 ° -1 ° -1 ° 0 ° 0 ° 0 ° 0 ° 0 ° -1 ° -1 ° -1 ° -2 ° -3 ° -4 ° -4 ° -5 ° -5 ° -5 ° -4 °
Wind direction, speed & gust (mph) Expand
W 8 19 W 9 20 W 11 23 WSW 11 23 WSW 12 26 WSW 13 27 WSW 13 28 WSW 13 27 WSW 13 27 WSW 14 29 WSW 16 32 W 18 36 W 16 31 W 15 29 W 14 27 W 13 25 WSW 13 27 WSW 16 32 W 20 40 W 19 38 W 19 38 W 18 36 W 20 38 W 20 38
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M VP VP P M P P P P P P M G VG E E E G P VG E E VG VG
Humidity Expand
99% 99% 99% 98% 97% 97% 97% 98% 98% 98% 98% 96% 94% 89% 84% 83% 84% 85% 93% 90% 87% 84% 87% 86%
UV index Expand
1 1 1 1 1 1 1
Sunrise: 08:14 Sunset: 16:03 Moon phase: Third quarter Air pollution: 3
Thursday (Thursday 14 December 2017)
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Warnings
Light shower night Overcast Light snow Light snow Sleet shower day Heavy shower day Heavy shower night Light rain
40% 20% 50% 60% 40% 70% 60% 50%
Temperature (°C)
2 ° 2 ° 2 ° 2 ° 2 ° 3 ° 2 ° 2 °
Show detail Show detail
Feels like temperature (°C) Expand
-4 ° -4 ° -4 ° -4 ° -3 ° -2 ° -3 ° -2 °
Wind direction, speed & gust (mph) Expand
W 19 38 W 18 35 WSW 15 31 WSW 14 28 WSW 14 29 WSW 15 30 W 14 28 W 13 26
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
E VG VG VG VG M G G
Humidity Expand
85% 87% 86% 89% 85% 87% 91% 94%
UV index Expand
1 1 1
Sunrise: 08:15 Sunset: 16:04 Moon phase: Waning crescent Air pollution: 3
Friday (Friday 15 December 2017)
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Warnings
Light shower night Cloudy Partly cloudy night Sunny day Sunny day Sunny intervals Clear night Partly cloudy night
40% 20% 10% 10% <5% 10% 10% 10%
Temperature (°C)
2 ° 2 ° 2 ° 1 ° 3 ° 3 ° 1 ° 1 °
Show detail Show detail
Feels like temperature (°C) Expand
-2 ° -3 ° -3 ° -4 ° -1 ° -1 ° -3 ° -3 °
Wind direction, speed & gust (mph) Expand
NW 12 24 NNW 14 27 NNW 12 24 NNW 12 22 NNW 12 25 NW 12 23 NW 11 20 NW 10 18
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G G VG VG VG VG VG VG
Humidity Expand
91% 93% 92% 91% 84% 83% 88% 92%
UV index Expand
1 1 1
Sunrise: 08:16 Sunset: 16:04 Moon phase: Waning crescent Air pollution: 3
Saturday (Saturday 16 December 2017)
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Warnings
Partly cloudy night Partly cloudy night Partly cloudy night Sleet shower day Cloudy Light shower day Cloudy Partly cloudy night
10% 10% 10% 40% 20% 40% 10% 10%
Temperature (°C)
1 ° 0 ° 1 ° 1 ° 3 ° 3 ° 2 ° 1 °
Show detail Show detail
Feels like temperature (°C) Expand
-4 ° -3 ° -3 ° -3 ° 0 ° 0 ° -1 ° -2 °
Wind direction, speed & gust (mph) Expand
NW 9 18 WNW 8 16 WNW 9 16 WNW 8 14 WNW 9 19 WNW 9 17 WNW 7 13 WNW 5 8
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G VG VG G G G G G
Humidity Expand
91% 92% 91% 93% 89% 93% 96% 97%
UV index Expand
1 1 1
Sunrise: 08:17 Sunset: 16:04 Moon phase: Waning crescent Air pollution: 2
Sunday (Sunday 17 December 2017)
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Warnings
Partly cloudy night Cloudy Cloudy Cloudy Light rain Light rain Light rain Light rain
<5% 10% 10% 20% 60% 60% 60% 50%
Temperature (°C)
0 ° 0 ° 1 ° 2 ° 5 ° 6 ° 6 ° 6 °
Show detail Show detail
Feels like temperature (°C) Expand
-2 ° -3 ° -2 ° -1 ° 2 ° 2 ° 3 ° 3 °
Wind direction, speed & gust (mph) Expand
WSW 4 6 SSW 4 7 S 6 9 S 8 13 SSW 11 20 SW 12 22 WSW 12 22 W 11 20
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G G M M M M M M
Humidity Expand
97% 98% 97% 96% 95% 96% 97% 97%
UV index Expand
1 1 1
Sunrise: 08:18 Sunset: 16:04 Moon phase: New
Monday (Monday 18 December 2017)
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Warnings
Light rain Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Fog
50% 10% 10% 10% 10% 10% 10% 20%
Temperature (°C)
5 ° 5 ° 4 ° 4 ° 6 ° 6 ° 5 ° 5 °
Show detail Show detail
Feels like temperature (°C) Expand
2 ° 2 ° 2 ° 2 ° 4 ° 4 ° 3 ° 3 °
Wind direction, speed & gust (mph) Expand
W 9 17 WNW 8 14 WNW 7 12 WSW 6 11 WSW 7 13 WSW 7 13 SW 7 14 SW 9 16
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M M M G G G M VP
Humidity Expand
96% 96% 96% 96% 92% 95% 98% 98%
UV index Expand
1 1 1
Sunrise: 08:18 Sunset: 16:04 Moon phase: New
< Glasfynydd (Usk Reservoir) last 24 hours Issued at:
  • Weather map
  • UK video forecast
Met Office 19:00, Tue
Tiree Cloudy 56.497 -6.887
Birmingham Heavy rain 52.486 -1.889
Glasgow Light rain 55.864 -4.25
Manchester Heavy rain 53.479 -2.247
Brighton Heavy rain 50.822 -0.136
Dover Cloudy 51.126 1.318
Exeter Overcast 50.718 -3.533
Lincoln Cloudy 53.23 -0.539
Norwich Cloudy 52.63 1.299
Peterborough Cloudy 52.569 -0.239
Swindon Cloudy 51.556 -1.778
York Cloudy 53.962 -1.079
Aberdeen Light snow 57.15 -2.093
Pembroke Heavy rain 51.673 -4.908
Ullapool Heavy rain 57.896 -5.16
Inverness Cloudy 57.478 -4.223
Kendal Heavy rain 54.328 -2.745
Londonderry (Derry) Partly cloudy night 54.995 -7.323
Newtown (Powys) Heavy rain 52.512 -3.312
Fort William Heavy rain 56.82 -5.104
Belfast Cloudy 54.596 -5.93
Caernarfon Heavy rain 53.139 -4.273
Camborne Heavy rain 50.212 -5.294
Cardiff Heavy rain 51.481 -3.178
Dumfries Heavy rain 55.071 -3.604
Edinburgh Overcast 55.953 -3.187
Lerwick Cloudy 60.154 -1.143
London Partly cloudy night 51.508 -0.125
Newcastle Upon Tyne Cloudy 54.978 -1.616
Pitlochry Sleet shower 56.705 -3.728
Southampton Cloudy 50.909 -1.403
Stornoway Heavy rain 58.211 -6.384
Wick (Highland) Light shower night 58.439 -3.092
  • Regional
  • UK 5 days
  • UK 6-30 days

Regional Forecast for Wales

Headline:

Rain spreading east overnight. Blustery showers tomorrow.

This Evening and Tonight:

Rain will spread eastwards through the evening, bringing very icy conditions in places. Becoming drier for a time after midnight with clearing skies allowing, giving a widespread frost away from the coast. Heavy showers spreading into the west by morning. Minimum temperature 0 °C.

Wednesday:

Windy with frequent blustery showers giving some longer spells of rain at times. Drier and brighter through the afternoon, but a band of sleet and hill snow arrives by evening. Maximum temperature 9 °C.

Outlook for Thursday to Saturday:

Windy on Thursday with sunny spells and scattered showers. Turning colder through Friday and Saturday with sunny spells and some showers, mainly in the west. Frosty overnight.

Updated: 15:00 on Tue 12 Dec 2017 GMT

UK forecast for the next 5 days

Headline:

Rain and some hill snow overnight, blustery showers tomorrow.

This Evening and Tonight:

Locally heavy rain and hill snow will push eastwards overnight, bringing very icy conditions in places. Some clearer skies will follow during the early hours, but showers of rain and hill snow reaching the west by morning.

Wednesday:

Windy with spells of heavy, showery rain for most, wintry over northern hills and perhaps to lower levels in the northwest later. Brighter spells in between. Gales in the southwest.

Outlook for Thursday to Saturday:

Sunny spells and blustery showers on Thursday, wintry in places. Colder on Friday and Saturday although showers becoming confined to windward coasts. Frosty overnight with a risk of ice.

Updated: 15:00 on Tue 12 Dec 2017 GMT

Outlook for the UK over the next 6-30 days

UK Outlook for Sunday 17 Dec 2017 to Tuesday 26 Dec 2017:

After a frosty start on Sunday, it will turn less cold. Cloud and outbreaks of rain are expected to spread to all areas by the end of the day, with strengthening winds and a perhaps hill snow for a time in the north. This is likely to bring a change to unsettled and milder conditions across country early next week. Through the rest of the period, generally milder but unsettled conditions are likely persist with bands of rain and hill snow interspersed by drier interludes, these most likely in the southeast. It may become very windy at times later next week with gales or severe gales in places. There remains a small chance that generally drier and colder conditions could affect southern areas at times.

UK Outlook for Wednesday 27 Dec 2017 to Wednesday 10 Jan 2018:

Generally changeable conditions look most likely persist until the end of December. Bands of rain are likely to move across the UK, interspersed with brighter showery conditions. Showers are likely to turn wintry at times, particularly in the north. It will often be windy with temperatures varying around normal. As we head into the start of January there is large uncertainty. However, a generally more settled spell of weather could become established. This would likely bring a mixture of colder and drier conditions with brief interludes of milder, wetter and windier weather. Snow is likely at times, especially in northern and central parts of the UK, as well as an increased likelihood of overnight frosts.

Updated: 15:00 on Tue 12 Dec 2017 GMT

Location details

Glasfynydd (Usk Reservoir)

Location
51.944, -3.716
Altitude
341.0 m above mean sea level

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