Trelleck (Monmouthshire) weather

Forecast days

Sunny intervals changing to heavy showers by lunchtime.
Sunrise iconSunrise:
Sunset iconSunset:
H UV
L Pollution

    7 day forecast for Trelleck

    Today (30 August 2026)
    Time
    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 Sunny intervals Sunny intervals Cloudy Sunny intervals Sunny intervals Sunny intervals Light shower day Heavy shower day Heavy shower day Heavy shower day Heavy shower day Heavy shower day Heavy shower day Light shower day Heavy shower night Heavy shower night Heavy shower night Heavy shower night
    Chance of precipitation
    10%
    10%
    <5%
    30%
    30%
    10%
    40%
    70%
    90%
    ≥95%
    90%
    ≥95%
    ≥95%
    90%
    70%
    90%
    ≥95%
    ≥95%
    90%
    Temperature
    15°
    14°
    14°
    15°
    16°
    17°
    18°
    19°
    19°
    19°
    19°
    18°
    17°
    17°
    16°
    15°
    15°
    14°
    14°
    Feels like temperature (°C)
    14°
    14°
    14°
    15°
    15°
    16°
    17°
    17°
    17°
    17°
    17°
    17°
    15°
    15°
    15°
    14°
    14°
    13°
    13°
    Wind direction and speed
    SW
    6
    SW
    6
    SSW
    6
    SSW
    7
    SSW
    8
    SSW
    9
    SSW
    10
    SSW
    11
    SSW
    10
    SSW
    11
    SSW
    11
    SSW
    12
    SSW
    13
    SSW
    11
    SW
    10
    SSW
    9
    SSW
    8
    SSW
    7
    SSW
    7
    Wind gust (mph)
    14
    13
    15
    18
    20
    22
    22
    23
    25
    27
    28
    29
    28
    26
    22
    19
    18
    17
    17
    Visibility
    G
    G
    G
    VG
    G
    G
    VG
    G
    G
    G
    G
    G
    M
    M
    G
    G
    M
    M
    M
    Humidity
    92%
    94%
    92%
    86%
    85%
    84%
    76%
    76%
    78%
    85%
    85%
    81%
    87%
    91%
    91%
    91%
    93%
    95%
    95%
    UV - 1 1 1 2 3 4 6 6 5 4 1 1 1 1 1 - - -
    Monday (31 August 2026)
    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 Heavy shower night Light shower 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 intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Partly cloudy night
    Chance of precipitation
    ≥95%
    70%
    40%
    30%
    30%
    30%
    30%
    30%
    20%
    10%
    20%
    10%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    14°
    13°
    13°
    12°
    13°
    13°
    13°
    13°
    14°
    15°
    16°
    17°
    18°
    18°
    18°
    18°
    18°
    18°
    17°
    16°
    15°
    13°
    13°
    12°
    Feels like temperature (°C)
    13°
    12°
    12°
    11°
    11°
    11°
    11°
    11°
    12°
    13°
    14°
    15°
    15°
    15°
    16°
    16°
    16°
    15°
    15°
    14°
    14°
    13°
    12°
    11°
    Wind direction and speed (mph)
    SW
    7
    SW
    7
    WSW
    6
    WSW
    7
    WSW
    7
    WSW
    8
    WSW
    8
    WSW
    8
    WSW
    9
    W
    10
    W
    11
    WNW
    11
    WNW
    13
    WNW
    13
    WNW
    13
    WNW
    13
    WNW
    11
    WNW
    11
    WNW
    9
    WNW
    8
    W
    7
    W
    5
    WSW
    5
    WSW
    5
    Wind gust (mph)
    18
    16
    16
    17
    19
    19
    19
    21
    23
    25
    26
    27
    26
    27
    26
    26
    24
    22
    21
    17
    14
    13
    12
    11
    Visibility (description)
    M
    G
    M
    G
    G
    G
    G
    M
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    94%
    95%
    95%
    95%
    94%
    93%
    92%
    90%
    87%
    84%
    76%
    74%
    68%
    66%
    63%
    62%
    61%
    60%
    61%
    65%
    68%
    73%
    76%
    78%
    UV - - - - - - 1 1 1 2 3 5 5 6 5 3 2 1 1 1 - - - -
    Tuesday (1 September 2026)
    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 Cloudy 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 intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Cloudy Cloudy Cloudy
    Chance of precipitation
    <5%
    10%
    10%
    20%
    20%
    30%
    30%
    30%
    20%
    30%
    30%
    40%
    40%
    30%
    30%
    30%
    40%
    30%
    30%
    40%
    30%
    30%
    30%
    30%
    Temperature (°C)
    12°
    11°
    11°
    11°
    12°
    12°
    12°
    12°
    14°
    15°
    16°
    17°
    18°
    18°
    18°
    19°
    19°
    18°
    18°
    17°
    16°
    15°
    15°
    15°
    Feels like temperature (°C)
    11°
    11°
    11°
    10°
    11°
    11°
    11°
    12°
    13°
    14°
    15°
    16°
    16°
    17°
    17°
    17°
    17°
    17°
    16°
    16°
    15°
    15°
    14°
    14°
    Wind direction and speed (mph)
    SW
    5
    SW
    4
    SW
    4
    SSW
    5
    SSW
    5
    SSW
    5
    SSW
    5
    SSW
    5
    SSW
    5
    SW
    7
    SW
    9
    SW
    8
    SW
    9
    SW
    9
    SW
    10
    WSW
    10
    WSW
    10
    SW
    9
    SW
    9
    SW
    8
    SW
    8
    SW
    7
    SSW
    8
    SSW
    9
    Wind gust (mph)
    11
    11
    10
    10
    10
    10
    11
    11
    14
    17
    19
    21
    22
    23
    23
    23
    23
    23
    20
    17
    15
    15
    17
    17
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    Humidity
    84%
    84%
    85%
    85%
    85%
    86%
    87%
    87%
    84%
    78%
    77%
    73%
    68%
    68%
    67%
    64%
    65%
    67%
    73%
    78%
    84%
    86%
    88%
    90%
    UV - - - - - - 1 1 1 2 3 4 4 4 5 3 2 1 1 1 - - - -
    Wednesday (2 September 2026)
    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 Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Light rain Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Mist
    Chance of precipitation
    30%
    30%
    30%
    40%
    40%
    40%
    50%
    60%
    60%
    60%
    60%
    60%
    60%
    50%
    40%
    30%
    30%
    30%
    30%
    30%
    20%
    20%
    20%
    20%
    Temperature (°C)
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    16°
    16°
    17°
    18°
    19°
    19°
    20°
    20°
    20°
    19°
    19°
    18°
    17°
    17°
    17°
    17°
    Feels like temperature (°C)
    14°
    14°
    13°
    13°
    13°
    13°
    13°
    14°
    14°
    14°
    15°
    16°
    16°
    17°
    17°
    18°
    17°
    17°
    17°
    16°
    16°
    15°
    15°
    15°
    Wind direction and speed (mph)
    SSW
    8
    SSW
    9
    SSW
    10
    SSW
    10
    SSW
    11
    SSW
    11
    SSW
    13
    SSW
    13
    SSW
    14
    SSW
    14
    SW
    15
    SW
    15
    SW
    15
    SW
    15
    SW
    15
    WSW
    14
    WSW
    14
    WSW
    15
    WSW
    13
    SW
    13
    SW
    11
    SW
    11
    SW
    11
    SW
    11
    Wind gust (mph)
    17
    18
    20
    21
    23
    26
    27
    28
    29
    30
    32
    33
    33
    34
    34
    33
    32
    31
    28
    27
    25
    25
    24
    23
    Visibility (description)
    M
    G
    G
    M
    G
    M
    M
    M
    M
    M
    M
    G
    G
    G
    G
    G
    VG
    VG
    VG
    G
    G
    G
    M
    M
    Humidity
    90%
    90%
    90%
    91%
    91%
    91%
    92%
    93%
    92%
    92%
    91%
    90%
    87%
    83%
    78%
    77%
    77%
    79%
    82%
    86%
    88%
    90%
    90%
    90%
    UV - - - - - - 1 1 1 1 2 3 4 4 4 3 2 1 1 1 - - - -
    Thursday (3 September 2026)
    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 Mist Mist Mist Mist Mist Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    20%
    20%
    10%
    10%
    20%
    20%
    10%
    20%
    20%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    20%
    20%
    20%
    20%
    20%
    20%
    20%
    20%
    Temperature (°C)
    17°
    16°
    16°
    16°
    16°
    15°
    15°
    15°
    16°
    17°
    18°
    19°
    19°
    20°
    20°
    20°
    20°
    20°
    19°
    18°
    17°
    16°
    16°
    16°
    Feels like temperature (°C)
    15°
    15°
    14°
    15°
    15°
    14°
    14°
    14°
    15°
    15°
    16°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    16°
    16°
    15°
    15°
    15°
    Wind direction and speed (mph)
    SW
    11
    WSW
    11
    WSW
    10
    WSW
    9
    WSW
    9
    WSW
    9
    WSW
    9
    WSW
    8
    WSW
    9
    WSW
    10
    W
    11
    W
    11
    WSW
    13
    WSW
    13
    WSW
    13
    WSW
    13
    WSW
    13
    WSW
    13
    WSW
    11
    WSW
    9
    WSW
    8
    WSW
    8
    WSW
    7
    SW
    7
    Wind gust (mph)
    22
    22
    21
    21
    21
    20
    19
    20
    22
    24
    25
    26
    28
    28
    28
    28
    28
    26
    24
    21
    19
    18
    17
    16
    Visibility (description)
    M
    M
    M
    M
    M
    M
    M
    M
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    M
    Humidity
    90%
    90%
    90%
    89%
    89%
    89%
    89%
    88%
    86%
    77%
    73%
    66%
    62%
    59%
    58%
    58%
    59%
    59%
    65%
    70%
    77%
    82%
    85%
    86%
    UV - - - - - - 1 1 1 2 3 4 4 5 4 3 2 1 1 1 - - - -
    Friday (4 September 2026)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Cloudy Mist Overcast Cloudy Light rain Light shower day Overcast Overcast
    Chance of precipitation
    20%
    30%
    30%
    40%
    50%
    50%
    50%
    40%
    40%
    Temperature (°C)
    16°
    16°
    16°
    15°
    17°
    19°
    20°
    18°
    17°
    Feels like temperature (°C)
    15°
    15°
    15°
    15°
    16°
    18°
    19°
    17°
    16°
    Wind direction and speed (mph)
    SW
    7
    SW
    7
    SW
    7
    SW
    7
    SW
    10
    WSW
    11
    WSW
    10
    SW
    10
    SW
    9
    Wind gust (mph)
    16
    13
    13
    20
    24
    24
    24
    19
    19
    Visibility (description)
    M
    M
    M
    P
    M
    G
    VG
    G
    M
    Humidity
    88%
    90%
    92%
    93%
    85%
    78%
    76%
    84%
    91%
    UV - - - 1 3 3 2 1 -
    Saturday (5 September 2026)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Mist Mist Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
    Chance of precipitation
    40%
    40%
    30%
    40%
    30%
    30%
    30%
    20%
    Temperature (°C)
    17°
    16°
    16°
    18°
    20°
    21°
    18°
    16°
    Feels like temperature (°C)
    16°
    16°
    16°
    17°
    19°
    19°
    18°
    16°
    Wind direction and speed (mph)
    SW
    8
    WSW
    7
    SW
    6
    WSW
    8
    WSW
    10
    WSW
    10
    SW
    5
    SW
    5
    Wind gust (mph)
    17
    15
    18
    21
    21
    19
    14
    12
    Visibility (description)
    M
    P
    P
    G
    VG
    VG
    VG
    G
    Humidity
    92%
    93%
    93%
    84%
    71%
    69%
    76%
    85%
    UV - - 1 3 4 2 1 -

    UK video forecast

    Trelleck weather map

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    Wales weather forecast

    Headline:

    Low pressure brings further heavy showers.

    Today:

    A day of sunny spells and showers. Showers frequent by the afternoon, some heavy with hail and thunder, which may lead to some localised flooding in places. Gusty winds with some of the showers. Feeling rather muggy. Maximum temperature 21 °C.

    Tonight:

    Further heavy and thundery showers are expected through the evening, though slowly easing overnight with clear spells developing. Staying mild, with a few mist patches forming by dawn. Minimum temperature 12 °C.

    Monday:

    Showers return for the morning, but these should generally clear for most during the afternoon, as a ridge of high pressure moves in. Feeling fresher, with a northwesterly breeze. Maximum temperature 20 °C.

    Outlook for Tuesday to Thursday:

    Staying on the mixed side, with further showers and longer spells of rain through this period. Some sunnier moments in between. Temperatures around average for early meteorological Autumn.

    Updated:

    UK long range weather forecast