Builth Wells (Powys) weather

Forecast days

Overcast.
Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution

    7 day forecast for Builth Wells

    Today (10 September 2026)
    Time
    20:00
    21:00
    22:00
    23:00
    Weather symbols Overcast Overcast Overcast Cloudy
    Chance of precipitation
    50%
    30%
    10%
    20%
    Temperature
    16°
    16°
    15°
    15°
    Feels like temperature (°C)
    16°
    15°
    15°
    15°
    Wind direction and speed
    SW
    7
    WSW
    6
    SW
    6
    SW
    6
    Wind gust (mph)
    19
    18
    17
    18
    Visibility
    M
    M
    M
    M
    Humidity
    95%
    95%
    95%
    96%
    UV - - - -
    Friday (11 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 Mist Cloudy Partly cloudy night Partly cloudy night Mist Sunny intervals Sunny intervals Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny day Sunny day Clear night Clear night Clear night Clear night
    Chance of precipitation
    30%
    40%
    40%
    20%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    15°
    15°
    15°
    14°
    14°
    13°
    13°
    13°
    14°
    15°
    16°
    17°
    18°
    18°
    19°
    19°
    19°
    19°
    18°
    15°
    11°
    Feels like temperature (°C)
    15°
    14°
    14°
    14°
    14°
    13°
    13°
    13°
    14°
    16°
    17°
    17°
    17°
    18°
    19°
    19°
    19°
    18°
    18°
    15°
    11°
    Wind direction and speed (mph)
    WSW
    6
    WSW
    6
    WSW
    5
    WSW
    5
    WSW
    3
    WSW
    3
    WSW
    3
    WSW
    2
    WSW
    2
    W
    2
    W
    3
    WNW
    4
    WNW
    5
    WNW
    5
    WNW
    5
    WNW
    5
    WNW
    5
    WNW
    4
    WNW
    3
    WNW
    2
    WSW
    2
    SSW
    2
    SW
    2
    SSE
    2
    Wind gust (mph)
    18
    18
    17
    15
    13
    13
    12
    9
    9
    9
    13
    15
    17
    17
    17
    16
    16
    15
    13
    9
    9
    9
    9
    9
    Visibility (description)
    M
    M
    M
    M
    M
    M
    M
    M
    M
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    Humidity
    95%
    96%
    96%
    95%
    95%
    95%
    94%
    95%
    92%
    86%
    79%
    74%
    66%
    62%
    56%
    55%
    54%
    55%
    59%
    75%
    85%
    86%
    90%
    92%
    UV - - - - - - 1 1 1 2 2 3 3 4 4 3 2 1 1 1 - - - -
    Saturday (12 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 Clear night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Cloudy Cloudy Overcast Overcast Light rain Light rain Light rain Light rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Light rain Light rain Light rain Light rain Light rain
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    20%
    40%
    50%
    60%
    70%
    80%
    90%
    90%
    ≥95%
    90%
    80%
    70%
    60%
    60%
    60%
    50%
    Temperature (°C)
    10°
    13°
    14°
    16°
    17°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    17°
    17°
    17°
    Feels like temperature (°C)
    10°
    13°
    14°
    15°
    15°
    16°
    16°
    16°
    17°
    17°
    17°
    17°
    17°
    18°
    18°
    17°
    17°
    17°
    17°
    Wind direction and speed (mph)
    SSE
    2
    SE
    2
    SE
    2
    SE
    2
    SE
    2
    SE
    2
    S
    4
    SSW
    6
    SW
    7
    SW
    10
    SW
    10
    SW
    11
    SW
    11
    SW
    11
    SW
    11
    SW
    11
    SW
    11
    WSW
    10
    WSW
    9
    WSW
    8
    WSW
    8
    WSW
    7
    WSW
    7
    WSW
    6
    Wind gust (mph)
    9
    9
    9
    9
    9
    9
    18
    23
    28
    30
    31
    31
    32
    32
    31
    30
    29
    27
    26
    24
    23
    22
    21
    20
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    M
    M
    M
    M
    P
    P
    P
    P
    P
    M
    M
    M
    M
    Humidity
    93%
    93%
    93%
    92%
    91%
    90%
    87%
    86%
    85%
    84%
    83%
    86%
    89%
    90%
    91%
    94%
    95%
    96%
    96%
    97%
    96%
    96%
    96%
    96%
    UV - - - - - - 1 1 1 1 2 2 3 2 2 2 1 1 1 1 - - - -
    Sunday (13 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 Overcast Overcast Overcast Mist Cloudy Mist Mist 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 Cloudy Mist
    Chance of precipitation
    50%
    40%
    40%
    30%
    20%
    20%
    30%
    20%
    20%
    10%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    10%
    10%
    20%
    20%
    20%
    30%
    30%
    Temperature (°C)
    17°
    17°
    16°
    16°
    16°
    15°
    14°
    14°
    15°
    17°
    18°
    19°
    20°
    20°
    21°
    21°
    21°
    21°
    20°
    18°
    17°
    16°
    16°
    16°
    Feels like temperature (°C)
    17°
    17°
    16°
    16°
    16°
    15°
    15°
    15°
    16°
    17°
    18°
    19°
    20°
    20°
    21°
    22°
    22°
    21°
    20°
    19°
    17°
    17°
    17°
    16°
    Wind direction and speed (mph)
    WSW
    6
    WSW
    6
    W
    4
    W
    5
    WSW
    3
    WSW
    3
    WSW
    3
    W
    2
    W
    2
    W
    3
    W
    3
    W
    3
    W
    3
    W
    3
    W
    3
    W
    3
    W
    3
    W
    3
    W
    3
    WSW
    3
    SW
    3
    SW
    2
    SSW
    2
    S
    2
    Wind gust (mph)
    18
    17
    16
    15
    13
    13
    12
    9
    9
    13
    13
    13
    13
    13
    13
    13
    13
    13
    11
    10
    10
    9
    9
    9
    Visibility (description)
    M
    M
    M
    M
    M
    M
    M
    M
    M
    M
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    M
    M
    M
    M
    Humidity
    96%
    96%
    97%
    97%
    96%
    96%
    96%
    96%
    95%
    91%
    83%
    75%
    68%
    66%
    64%
    63%
    63%
    65%
    72%
    82%
    87%
    89%
    92%
    94%
    UV - - - - - - 1 1 1 1 2 3 3 4 4 2 2 1 1 1 - - - -
    Monday (14 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 Mist Mist Mist Overcast Overcast Overcast Light rain Light rain Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Light rain Overcast Overcast
    Chance of precipitation
    40%
    40%
    30%
    30%
    40%
    40%
    40%
    40%
    40%
    40%
    50%
    60%
    60%
    50%
    40%
    40%
    40%
    40%
    40%
    40%
    50%
    50%
    50%
    50%
    Temperature (°C)
    16°
    15°
    14°
    14°
    15°
    15°
    15°
    16°
    17°
    18°
    19°
    19°
    20°
    20°
    20°
    21°
    21°
    20°
    20°
    19°
    18°
    18°
    18°
    18°
    Feels like temperature (°C)
    16°
    16°
    15°
    15°
    15°
    16°
    16°
    16°
    17°
    18°
    19°
    19°
    20°
    20°
    20°
    20°
    20°
    20°
    20°
    19°
    18°
    17°
    18°
    17°
    Wind direction and speed (mph)
    SSW
    2
    SSW
    2
    S
    2
    SSW
    2
    SSW
    2
    SSW
    2
    SSW
    2
    SSW
    2
    SW
    3
    SW
    5
    SW
    6
    SW
    7
    SW
    7
    SW
    9
    SW
    10
    SW
    10
    SW
    9
    SW
    9
    SW
    8
    SW
    7
    SW
    7
    WSW
    8
    WSW
    7
    WSW
    7
    Wind gust (mph)
    9
    9
    9
    9
    9
    9
    9
    9
    13
    19
    22
    24
    25
    26
    26
    26
    25
    25
    23
    22
    23
    22
    22
    22
    Visibility (description)
    M
    M
    P
    M
    P
    M
    M
    M
    P
    M
    M
    M
    M
    M
    M
    M
    M
    M
    M
    M
    M
    M
    M
    M
    Humidity
    95%
    96%
    96%
    97%
    96%
    95%
    96%
    96%
    94%
    92%
    92%
    91%
    89%
    88%
    87%
    85%
    88%
    88%
    88%
    92%
    93%
    95%
    93%
    94%
    UV - - - - - - 1 1 1 1 2 3 3 3 3 2 1 1 1 1 - - - -
    Tuesday (15 September 2026)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Overcast Light shower night Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
    Chance of precipitation
    50%
    50%
    40%
    20%
    10%
    10%
    10%
    10%
    10%
    Temperature (°C)
    17°
    17°
    17°
    15°
    16°
    17°
    17°
    14°
    13°
    Feels like temperature (°C)
    17°
    17°
    17°
    15°
    15°
    15°
    15°
    13°
    12°
    Wind direction and speed (mph)
    WSW
    7
    WSW
    7
    W
    6
    W
    6
    WNW
    9
    WNW
    11
    WNW
    11
    WNW
    9
    WNW
    6
    Wind gust (mph)
    20
    20
    19
    22
    26
    28
    26
    19
    16
    Visibility (description)
    M
    M
    M
    M
    G
    VG
    VG
    G
    G
    Humidity
    94%
    95%
    95%
    94%
    85%
    69%
    70%
    78%
    85%
    UV - - - 1 2 4 2 1 -
    Wednesday (16 September 2026)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Partly cloudy night Cloudy Cloudy Overcast Overcast Overcast Overcast
    Chance of precipitation
    10%
    10%
    10%
    20%
    10%
    10%
    10%
    20%
    Temperature (°C)
    12°
    12°
    12°
    14°
    16°
    16°
    14°
    13°
    Feels like temperature (°C)
    11°
    11°
    11°
    13°
    15°
    15°
    13°
    12°
    Wind direction and speed (mph)
    WNW
    6
    WNW
    6
    W
    6
    WNW
    9
    WNW
    9
    W
    9
    W
    7
    W
    6
    Wind gust (mph)
    17
    17
    22
    25
    25
    23
    17
    17
    Visibility (description)
    G
    G
    M
    G
    G
    VG
    G
    G
    Humidity
    87%
    91%
    92%
    85%
    77%
    76%
    85%
    92%
    UV - - 1 2 4 2 1 -

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    Wales weather forecast

    Headline:

    Changeable next few days, with sunshine and some showery rain.

    This Evening and Tonight:

    Lingering patchy rain will clear eastwards this evening, leaving scattered showers overnight, mixed with some clearer spells. A milder night than the previous night with winds easing by dawn. Minimum temperature 10 °C.

    Friday:

    Isolated showers first thing Friday morning, but dissipating under a ridge of high pressure. This leaves brighter spells in the afternoon, especially in the west. Temperatures will be near average. Maximum temperature 20 °C.

    Outlook for Saturday to Monday:

    More wet and windy weather returns on Saturday, followed by another ridge of high pressure and drier weather on Sunday. Staying autumnal into next week with further spells of rain.

    Updated:

    UK long range weather forecast