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Glasfynydd (Usk Reservoir)

  • Cloudy 2 °C 1 °C
  • Light rain 5 °C 1 °C
  • Sleet shower 3 °C 1 °C
  • Sunny day 4 °C -1 °C
  • Cloudy 4 °C -1 °C
  • Light rain 7 °C 4 °C
  • Overcast 8 °C 5 °C
Now 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00
Sunny intervals Cloudy Light snow Heavy rain Light rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Drizzle
<5% 10% 50% 80% 60% 90% 90% 90% 90% 90% 60% 40%
Temperature (°C)
0 ° 1 ° 1 ° 1 ° 1 ° 1 ° 2 ° 2 ° 3 ° 3 ° 4 ° 3 °
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Feels like temperature (°C) Expand
-2 ° -3 ° -3 ° -3 ° -3 ° -3 ° -3 ° -3 ° -2 ° -2 ° 0 ° 0 °
Wind direction, speed & gust (mph) Expand
SW 5 16 SW 8 21 SW 9 21 SSW 11 25 SSW 9 22 SSW 11 28 SSW 15 35 SW 15 33 SSW 15 34 SSW 17 37 SW 12 26 W 10 22
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VG VG G G G G G VP M G VP VP
Humidity Expand
96% 91% 90% 94% 96% 95% 97% 98% 97% 98% 99% 99%
UV index Expand
1 1 1 1
Sunrise: 08:13 Sunset: 16:04 Moon phase: Third quarter Air pollution: 2
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
Fog Fog Fog Fog Fog Mist Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Hail shower day Drizzle Cloudy Cloudy Overcast Cloudy Light rain Sleet shower Light snow Cloudy Cloudy Light snow Overcast
20% 20% 20% 20% 20% 20% 80% 80% 90% 90% 90% 50% 40% 20% 10% 10% 10% 60% 60% 60% 10% 10% 50% 20%
Temperature (°C)
3 ° 3 ° 2 ° 2 ° 3 ° 3 ° 3 ° 3 ° 4 ° 4 ° 5 ° 5 ° 4 ° 4 ° 3 ° 3 ° 2 ° 2 ° 2 ° 2 ° 1 ° 1 ° 1 ° 1 °
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Feels like temperature (°C) Expand
-1 ° -1 ° -2 ° -2 ° -2 ° -2 ° -1 ° -1 ° -1 ° 0 ° 1 ° 0 ° -1 ° -1 ° -1 ° -1 ° -2 ° -3 ° -4 ° -5 ° -5 ° -5 ° -5 ° -5 °
Wind direction, speed & gust (mph) Expand
WNW 10 24 W 10 22 W 11 24 WSW 11 24 WSW 11 25 WSW 13 29 WSW 13 28 WSW 13 27 WSW 13 27 WSW 14 29 WSW 14 29 W 17 33 W 15 29 W 14 27 W 13 26 W 11 23 WSW 11 23 WSW 14 29 WSW 21 40 W 19 37 W 20 39 W 18 35 W 20 39 W 20 38
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VP VP VP VP VP P P P VP VP VP M M VG E E E VG P VG E E VG VG
Humidity Expand
98% 98% 98% 98% 98% 97% 98% 98% 98% 98% 98% 97% 95% 91% 85% 84% 84% 84% 95% 91% 88% 88% 90% 88%
UV index Expand
1 1 1 1 1 1 1
Sunrise: 08:14 Sunset: 16:03 Moon phase: Third quarter Air pollution: 3
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Overcast Sleet shower Sleet shower Light snow Cloudy Light shower day Heavy shower night Light rain
20% 50% 60% 70% 20% 50% 60% 50%
Temperature (°C)
2 ° 1 ° 2 ° 1 ° 2 ° 3 ° 2 ° 2 °
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Feels like temperature (°C) Expand
-4 ° -4 ° -4 ° -4 ° -3 ° -2 ° -2 ° -2 °
Wind direction, speed & gust (mph) Expand
W 18 35 W 16 32 WSW 14 29 WSW 13 26 WSW 15 29 WSW 13 27 W 13 26 W 13 26
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
E E E VG G VG G G
Humidity Expand
86% 89% 88% 90% 88% 88% 91% 95%
UV index Expand
1 1 1
Sunrise: 08:15 Sunset: 16:04 Moon phase: Waning crescent Air pollution: 3
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Partly cloudy night Cloudy Partly cloudy night Sunny day Sunny day Sunny day Partly cloudy night Partly cloudy night
10% 20% 10% 10% 10% 10% 10% 10%
Temperature (°C)
2 ° 2 ° 2 ° 1 ° 3 ° 3 ° 2 ° 1 °
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Feels like temperature (°C) Expand
-2 ° -3 ° -2 ° -3 ° -1 ° -1 ° -3 ° -3 °
Wind direction, speed & gust (mph) Expand
NW 14 27 NW 15 29 NW 11 22 NW 11 20 NNW 11 23 NW 11 22 NW 10 20 NW 9 18
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VG VG VG VG VG VG VG VG
Humidity Expand
89% 93% 92% 89% 83% 83% 88% 91%
UV index Expand
1 1 1
Sunrise: 08:16 Sunset: 16:04 Moon phase: Waning crescent Air pollution: 3
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Cloudy Partly cloudy night Partly cloudy night Sunny intervals Cloudy Sunny intervals Cloudy Cloudy
10% 10% 10% 10% 20% 20% 10% 10%
Temperature (°C)
1 ° 0 ° 0 ° 0 ° 3 ° 3 ° 2 ° 1 °
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Feels like temperature (°C) Expand
-3 ° -3 ° -4 ° -3 ° 0 ° 0 ° -1 ° -2 °
Wind direction, speed & gust (mph) Expand
NW 9 17 WNW 8 15 WNW 8 16 W 7 14 WNW 9 19 WNW 8 17 WNW 7 12 WNW 5 8
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G VG VG VG G G G G
Humidity Expand
91% 92% 94% 95% 90% 92% 95% 97%
UV index Expand
1 1 1
Sunrise: 08:17 Sunset: 16:04 Moon phase: Waning crescent Air pollution: 2
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Cloudy Cloudy Cloudy Cloudy Light rain Light rain Drizzle Light rain
10% 10% 10% 20% 60% 60% 40% 50%
Temperature (°C)
0 ° 0 ° 1 ° 3 ° 5 ° 6 ° 6 ° 6 °
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Feels like temperature (°C) Expand
-2 ° -3 ° -1 ° 0 ° 1 ° 3 ° 4 ° 3 °
Wind direction, speed & gust (mph) Expand
W 4 7 SSW 4 7 S 5 9 S 8 14 SSW 10 20 SW 11 21 WSW 10 18 W 9 18
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G M M M M M P G
Humidity Expand
97% 98% 97% 95% 95% 96% 98% 98%
UV index Expand
1 1 1
Sunrise: 08:18 Sunset: 16:04 Moon phase: New
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Cloudy Cloudy Cloudy Light rain Overcast Mist Mist Drizzle
10% 20% 10% 40% 20% 20% 20% 30%
Temperature (°C)
6 ° 6 ° 5 ° 6 ° 7 ° 7 ° 7 ° 8 °
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Feels like temperature (°C) Expand
3 ° 3 ° 3 ° 3 ° 5 ° 5 ° 5 ° 5 °
Wind direction, speed & gust (mph) Expand
W 8 14 W 8 14 WSW 8 14 WSW 8 14 SW 9 17 SW 9 18 SW 10 19 SW 10 20
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M M M G G P P P
Humidity Expand
98% 98% 98% 98% 96% 97% 99% 99%
UV index Expand
1 1 1
Sunrise: 08:18 Sunset: 16:04 Moon phase: New

Issued at:

Forecast Summary

  • Regional
  • UK 5 days
  • UK 6-30 days

Wales

Headline:

Very cold and sunny, but turning cloudier with rain later.

Today:

A sunny, but very cold start with severe frost, ice and some freezing fog patches which will be slow to clear. Some early showers in the west will fade, but it will turn cloudier with rain later. Maximum temperature 7 °C.

Tonight:

Turning windy with rain spreading eastwards through the first part of the night. Clearer skies will follow for a time, although further heavy, showery rain will arrive later. Minimum temperature 0 °C.

Wednesday:

Windy with spells of heavy and showery rain. Turning drier and brighter through the afternoon, but further rain, perhaps with some snow will arrive overnight. 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: 01:49 on Tue 12 Dec 2017 GMT

UK forecast for the next 5 days

Headline:

Cold and bright, but rain and hill snow arriving later.

Today:

A very cold start, with severe frost, ice and some freezing fog patches which will be slow to clear. Otherwise bright for many, but turning cloudier and windier in the west with rain and hill snow arriving later.

Tonight:

Locally heavy rain and hill snow will push eastwards overnight, with ice forming over existing snow cover. Some clearer skies, but further rain and hill snow in the west later.

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: 01:46 on Tue 12 Dec 2017 GMT

Outlook for the UK over the next 6-30 days

UK Outlook for Saturday 16 Dec 2017 to Monday 25 Dec 2017:

Cold northerly winds will bring a mixture of sunshine and wintry showers on Saturday. Showers will mainly be along exposed coasts, with a good deal of sunshine elsewhere. Generally it will feel cold despite the sunshine, with overnight frosts and some icy patches for some. Sunday will probably turn less cold but more unsettled, with strengthening winds, outbreaks of rain, hill snow and cloudier skies. Into the following week, milder conditions will arrive with bands of rain and hill snow interspersed by drier interludes, these most likely in the southeast. It will often be windy with gales possible in exposed parts of the north and west. These conditions will probably continue as we approach Christmas.

UK Outlook for Tuesday 26 Dec 2017 to Tuesday 9 Jan 2018:

Generally changeable conditions look most likely from the start of the period to the end of December. Bands of rain are likely to move across the UK, followed by scattered showers, mainly in the northwest. Showers are likely to turn wintry at times, particularly in the north. It will often be windy with milder than average temperatures most probable. As we head into the start of January, 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.

Updated: 01:46 on Tue 12 Dec 2017 GMT

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