Glasfynydd (Usk Reservoir) (Carmarthenshire) weather

Forecast days

Cloudy changing to light showers by early evening.
Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution
H Pollen
Bannau Brycheiniog / Brecon Beacons (Mountain region)

    8 day forecast for Glasfynydd (Usk Reservoir)

    Today (3 April 2025)
    Time
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Cloudy Cloudy Light shower day Overcast Overcast Overcast Cloudy
    Chance of precipitation
    10%
    40%
    50%
    40%
    30%
    30%
    30%
    Temperature
    15°
    14°
    14°
    13°
    12°
    11°
    11°
    Feels like temperature (°C)
    12°
    11°
    11°
    10°
    9°
    9°
    9°
    Wind direction and speed
    E
    15
    ESE
    14
    ESE
    13
    ESE
    13
    ESE
    13
    ESE
    12
    ESE
    11
    Wind gust (mph)
    29
    27
    25
    26
    26
    24
    22
    Visibility
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    56%
    59%
    64%
    67%
    70%
    76%
    80%
    UV 1 1 1 - - - -
    Friday (4 April 2025)
    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 symbols Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny day Sunny intervals Sunny intervals Sunny day Sunny day Sunny day Clear night Clear night Clear night Clear night
    Chance of precipitation
    20%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    <5%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    11°
    10°
    10°
    10°
    9°
    9°
    9°
    8°
    9°
    10°
    12°
    13°
    15°
    16°
    17°
    18°
    19°
    19°
    18°
    17°
    15°
    14°
    13°
    11°
    Feels like temperature (°C)
    8°
    8°
    8°
    7°
    7°
    6°
    6°
    6°
    6°
    8°
    9°
    11°
    12°
    13°
    14°
    14°
    15°
    15°
    15°
    14°
    13°
    11°
    10°
    8°
    Wind direction and speed (mph)
    ESE
    10
    ESE
    9
    ESE
    8
    ESE
    9
    ESE
    9
    ESE
    10
    ESE
    10
    E
    10
    E
    10
    E
    11
    E
    12
    E
    13
    E
    14
    E
    15
    E
    16
    E
    16
    E
    15
    E
    14
    E
    13
    E
    13
    E
    13
    E
    14
    E
    16
    E
    17
    Wind gust (mph)
    19
    17
    17
    16
    16
    16
    16
    17
    19
    22
    24
    27
    29
    30
    31
    30
    28
    25
    22
    21
    24
    26
    28
    29
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    83%
    85%
    87%
    88%
    90%
    91%
    92%
    92%
    89%
    84%
    78%
    71%
    66%
    62%
    57%
    54%
    51%
    52%
    56%
    61%
    65%
    66%
    68%
    72%
    UV - - - - - - 1 1 1 1 2 3 4 4 3 3 2 1 1 1 - - - -
    Saturday (5 April 2025)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Clear night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    10°
    9°
    6°
    5°
    8°
    13°
    16°
    13°
    9°
    Feels like temperature (°C)
    7°
    5°
    2°
    0°
    4°
    10°
    12°
    10°
    5°
    Wind direction and speed (mph)
    E
    17
    E
    18
    E
    17
    E
    17
    E
    19
    E
    19
    E
    17
    E
    14
    E
    17
    Wind gust (mph)
    30
    31
    31
    33
    35
    35
    31
    27
    28
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    E
    E
    VG
    Humidity
    74%
    76%
    78%
    79%
    65%
    51%
    40%
    55%
    66%
    UV - - - 1 2 4 2 1 -
    Sunday (6 April 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    5°
    3°
    2°
    8°
    13°
    15°
    13°
    8°
    Feels like temperature (°C)
    0°
    -2°
    -3°
    4°
    10°
    12°
    11°
    6°
    Wind direction and speed (mph)
    E
    16
    E
    15
    E
    15
    E
    14
    E
    13
    E
    11
    E
    8
    ESE
    8
    Wind gust (mph)
    27
    25
    25
    26
    25
    21
    14
    15
    Visibility (description)
    VG
    VG
    VG
    VG
    E
    E
    VG
    VG
    Humidity
    74%
    83%
    89%
    65%
    41%
    40%
    54%
    62%
    UV - - 1 2 4 2 1 -
    Monday (7 April 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    6°
    3°
    2°
    8°
    13°
    15°
    13°
    7°
    Feels like temperature (°C)
    2°
    0°
    -1°
    6°
    12°
    14°
    12°
    6°
    Wind direction and speed (mph)
    ESE
    9
    ESE
    8
    ESE
    8
    ESE
    7
    ESE
    6
    E
    5
    ESE
    5
    SE
    4
    Wind gust (mph)
    14
    12
    14
    15
    15
    12
    9
    7
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    63%
    68%
    74%
    56%
    41%
    41%
    61%
    74%
    UV - - 1 2 4 2 1 -
    Tuesday (8 April 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    6°
    4°
    3°
    11°
    14°
    16°
    13°
    7°
    Feels like temperature (°C)
    4°
    2°
    1°
    10°
    13°
    14°
    12°
    6°
    Wind direction and speed (mph)
    SE
    4
    ESE
    4
    ESE
    4
    E
    4
    E
    6
    E
    7
    E
    6
    ENE
    4
    Wind gust (mph)
    7
    7
    8
    13
    15
    15
    9
    7
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    80%
    83%
    85%
    57%
    45%
    42%
    63%
    83%
    UV - - 1 2 4 2 1 -
    Wednesday (9 April 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    4°
    3°
    2°
    10°
    14°
    15°
    13°
    6°
    Feels like temperature (°C)
    3°
    1°
    1°
    8°
    12°
    13°
    11°
    4°
    Wind direction and speed (mph)
    ENE
    4
    ENE
    4
    ENE
    4
    E
    6
    ENE
    8
    ENE
    8
    ENE
    7
    ENE
    4
    Wind gust (mph)
    7
    7
    10
    15
    17
    15
    9
    5
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    85%
    86%
    87%
    61%
    50%
    48%
    64%
    87%
    UV - - 1 2 4 2 1 -
    Thursday (10 April 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Clear night Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    4°
    2°
    2°
    11°
    15°
    16°
    13°
    6°
    Feels like temperature (°C)
    2°
    0°
    1°
    10°
    13°
    14°
    11°
    5°
    Wind direction and speed (mph)
    NE
    3
    NE
    4
    ENE
    3
    N
    5
    N
    9
    NW
    9
    NW
    8
    NW
    5
    Wind gust (mph)
    5
    4
    8
    14
    17
    17
    10
    4
    Visibility (description)
    G
    G
    G
    VG
    VG
    VG
    VG
    G
    Humidity
    90%
    92%
    92%
    62%
    54%
    50%
    64%
    90%
    UV - - 1 2 4 2 1 -

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    Forecast for 17:00, Thu
    Updated 15:00 (UTC+1) on Thu 3 Apr 2025

    Wales weather forecast

    Headline:

    Some showers this evening. Warm with sunshine on Friday.

    This Evening and Tonight:

    A chance of further showers in the south this evening, these moving northwards overnight, but many places remaining dry. Patchy low cloud developing in places. A milder night than of late. Minimum temperature 7 °C.

    Friday:

    Any showers clearing to leave sunny spells. Increasingly sunny by the afternoon. Temperatures above average and feeling warm albeit cooler on coasts exposed to the easterly breeze. Maximum temperature 23 °C.

    Outlook for Saturday to Monday:

    Dry and mainly sunny over the weekend and into next week too. Temperatures generally lower than on Friday with chilly nights but feeling warm in the sunshine. Breezy at times.

    Updated:

    UK long range weather forecast

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