Llanddewi Ystradenni (Powys) weather

Forecast days

Heavy rain changing to overcast in the afternoon.
Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution
No pollen data.

    7 day forecast for Llanddewi Ystradenni

    Today (18 September 2025)
    Time
    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 rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast
    Chance of precipitation
    ≥95%
    50%
    90%
    90%
    90%
    80%
    70%
    50%
    20%
    20%
    10%
    <5%
    10%
    10%
    10%
    10%
    10%
    10%
    Temperature
    14°
    14°
    15°
    16°
    16°
    17°
    17°
    17°
    17°
    18°
    18°
    17°
    17°
    17°
    16°
    16°
    16°
    16°
    Feels like temperature (°C)
    14°
    14°
    14°
    14°
    14°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    Wind direction and speed
    SW
    6
    SW
    7
    SW
    9
    SW
    11
    SW
    13
    SW
    14
    SW
    14
    SW
    15
    SW
    14
    SW
    14
    SW
    14
    SW
    14
    SW
    13
    SW
    12
    SW
    11
    SW
    11
    SW
    11
    SW
    11
    Wind gust (mph)
    15
    19
    24
    28
    31
    32
    34
    34
    35
    34
    33
    32
    30
    28
    27
    26
    25
    25
    Visibility
    P
    P
    M
    M
    M
    M
    M
    G
    G
    E
    E
    E
    E
    E
    VG
    VG
    VG
    VG
    Humidity
    98%
    99%
    99%
    99%
    99%
    98%
    98%
    96%
    93%
    89%
    87%
    86%
    86%
    88%
    91%
    92%
    92%
    92%
    UV 1 1 1 1 2 2 3 3 2 2 1 1 1 1 - - - -
    Friday (19 September 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 Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Cloudy Cloudy Cloudy Cloudy
    Chance of precipitation
    10%
    10%
    10%
    10%
    10%
    10%
    20%
    20%
    30%
    30%
    30%
    30%
    30%
    30%
    40%
    40%
    40%
    50%
    50%
    30%
    30%
    30%
    30%
    30%
    Temperature (°C)
    16°
    16°
    16°
    15°
    15°
    15°
    15°
    14°
    14°
    15°
    15°
    16°
    16°
    17°
    17°
    17°
    17°
    17°
    16°
    15°
    15°
    15°
    14°
    14°
    Feels like temperature (°C)
    15°
    14°
    14°
    14°
    14°
    14°
    14°
    13°
    13°
    14°
    14°
    15°
    15°
    15°
    16°
    16°
    16°
    16°
    15°
    15°
    15°
    15°
    14°
    14°
    Wind direction and speed (mph)
    SW
    10
    SSW
    10
    SSW
    10
    SSW
    9
    SSW
    9
    SSW
    9
    SSW
    8
    SSW
    8
    SSW
    7
    SSW
    8
    SSW
    9
    SSW
    10
    SSW
    10
    SSW
    10
    SW
    10
    SW
    10
    SW
    9
    SW
    8
    WSW
    7
    SW
    6
    SSW
    5
    SW
    4
    SW
    3
    SSW
    3
    Wind gust (mph)
    25
    25
    25
    24
    23
    23
    22
    20
    23
    22
    22
    23
    23
    24
    23
    21
    20
    17
    15
    12
    9
    7
    6
    5
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    91%
    90%
    91%
    91%
    91%
    92%
    92%
    92%
    91%
    91%
    89%
    88%
    86%
    85%
    84%
    85%
    86%
    87%
    91%
    93%
    94%
    94%
    95%
    96%
    UV - - - - - - 1 1 1 1 2 2 2 3 3 2 1 1 1 1 - - - -
    Saturday (20 September 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 Cloudy Overcast Overcast Light rain Overcast Light rain Light rain Light rain Light rain Light rain Light rain Light rain Heavy rain Heavy rain Heavy rain Light rain Heavy rain Light rain Light shower day Light shower night Light shower night Light shower night Light shower night Light shower night
    Chance of precipitation
    30%
    40%
    50%
    50%
    50%
    50%
    60%
    60%
    60%
    70%
    70%
    70%
    80%
    90%
    90%
    90%
    90%
    80%
    70%
    70%
    80%
    80%
    80%
    70%
    Temperature (°C)
    14°
    14°
    14°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    14°
    14°
    14°
    14°
    14°
    13°
    12°
    12°
    11°
    11°
    11°
    10°
    10°
    Feels like temperature (°C)
    14°
    14°
    14°
    14°
    14°
    13°
    13°
    13°
    12°
    12°
    13°
    13°
    13°
    13°
    13°
    12°
    11°
    10°
    10°
    Wind direction and speed (mph)
    SW
    3
    S
    3
    SSW
    3
    SSW
    3
    S
    3
    SSE
    3
    SE
    4
    SSE
    4
    S
    5
    SSE
    5
    SE
    6
    ESE
    7
    ESE
    8
    ESE
    9
    SE
    10
    WSW
    11
    WNW
    12
    W
    12
    W
    11
    W
    11
    WSW
    10
    WSW
    10
    W
    9
    W
    9
    Wind gust (mph)
    5
    5
    5
    5
    6
    7
    7
    8
    10
    13
    14
    12
    15
    17
    19
    19
    19
    24
    21
    19
    19
    21
    20
    20
    Visibility (description)
    G
    VG
    G
    G
    G
    G
    M
    M
    M
    G
    M
    G
    M
    M
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    96%
    96%
    96%
    97%
    96%
    96%
    97%
    96%
    96%
    95%
    95%
    93%
    93%
    92%
    92%
    91%
    91%
    91%
    91%
    91%
    91%
    92%
    93%
    93%
    UV - - - - - - 1 1 1 1 1 1 2 2 2 2 1 1 1 1 - - - -
    Sunday (21 September 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 Light shower night Light shower night Light shower night Light shower night Light shower night Light shower night Light shower night Cloudy Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Light shower day Light shower day Light shower day Light shower day Light shower day Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    70%
    60%
    60%
    60%
    60%
    60%
    50%
    50%
    40%
    40%
    40%
    40%
    50%
    50%
    60%
    50%
    50%
    50%
    50%
    40%
    40%
    40%
    40%
    40%
    Temperature (°C)
    10°
    10°
    10°
    10°
    11°
    11°
    11°
    12°
    11°
    11°
    11°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    WNW
    10
    WNW
    9
    WNW
    9
    WNW
    9
    WNW
    8
    NW
    8
    NW
    8
    NW
    8
    NW
    8
    NNW
    9
    NNW
    10
    NNW
    11
    NNW
    11
    NNW
    11
    NNW
    11
    NNW
    11
    NNW
    11
    NNW
    11
    NNW
    10
    N
    9
    N
    8
    N
    8
    N
    8
    N
    8
    Wind gust (mph)
    20
    19
    17
    16
    15
    15
    15
    16
    18
    21
    22
    22
    25
    25
    24
    23
    21
    21
    18
    15
    15
    15
    16
    15
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    92%
    91%
    92%
    92%
    92%
    92%
    92%
    91%
    90%
    86%
    79%
    74%
    70%
    66%
    65%
    65%
    67%
    68%
    73%
    80%
    84%
    85%
    86%
    87%
    UV - - - - - - 1 1 1 1 2 3 3 3 2 2 1 1 1 1 - - - -
    Monday (22 September 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 Clear night Clear night Sunny day Sunny day Sunny day 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 Partly cloudy night
    Chance of precipitation
    30%
    30%
    20%
    20%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    Temperature (°C)
    11°
    12°
    12°
    12°
    12°
    12°
    12°
    11°
    Feels like temperature (°C)
    10°
    10°
    10°
    10°
    10°
    Wind direction and speed (mph)
    N
    7
    N
    7
    N
    7
    N
    7
    N
    7
    N
    8
    N
    8
    N
    7
    N
    7
    N
    8
    NNE
    10
    NNE
    10
    NNE
    11
    NNE
    11
    NNE
    11
    NNE
    10
    NNE
    10
    NNE
    10
    N
    9
    N
    7
    N
    6
    N
    5
    N
    5
    N
    4
    Wind gust (mph)
    14
    14
    14
    15
    16
    16
    14
    14
    17
    20
    22
    24
    25
    25
    25
    24
    22
    21
    17
    14
    12
    11
    9
    8
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    VG
    E
    E
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    88%
    89%
    89%
    89%
    88%
    87%
    87%
    88%
    86%
    79%
    72%
    65%
    57%
    54%
    52%
    52%
    53%
    55%
    60%
    68%
    75%
    79%
    83%
    86%
    UV - - - - - - - 1 1 1 2 3 4 4 3 2 2 1 1 1 - - - -
    Tuesday (23 September 2025)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Cloudy Overcast Cloudy Partly cloudy night Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    <5%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    Temperature (°C)
    10°
    12°
    13°
    10°
    Feels like temperature (°C)
    10°
    11°
    Wind direction and speed (mph)
    NNW
    4
    NW
    3
    NW
    4
    WNW
    4
    NNW
    7
    N
    9
    N
    9
    NNW
    6
    NNW
    5
    Wind gust (mph)
    6
    4
    4
    8
    16
    16
    15
    6
    5
    Visibility (description)
    VG
    VG
    G
    G
    VG
    VG
    VG
    VG
    G
    Humidity
    87%
    88%
    91%
    92%
    73%
    61%
    61%
    78%
    90%
    UV - - - 1 2 3 1 1 -
    Wednesday (24 September 2025)
    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 Sunny intervals Cloudy Overcast Cloudy Cloudy Cloudy
    Chance of precipitation
    <5%
    <5%
    <5%
    10%
    10%
    10%
    <5%
    <5%
    Temperature (°C)
    11°
    13°
    13°
    11°
    Feels like temperature (°C)
    11°
    12°
    Wind direction and speed (mph)
    NW
    4
    NW
    4
    NW
    4
    NNE
    7
    NNE
    9
    NNE
    8
    N
    6
    NNW
    4
    Wind gust (mph)
    5
    5
    5
    13
    14
    11
    7
    5
    Visibility (description)
    G
    G
    G
    VG
    VG
    VG
    VG
    G
    Humidity
    92%
    93%
    94%
    80%
    65%
    65%
    84%
    92%
    UV - - 1 2 3 1 1 -

    UK video forecast

    Llanddewi Ystradenni weather map

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    WARNING
    Flood alerts icon
    Flood alerts in force for Wales
    Flood alerts in force for Wales

    Wales weather forecast

    Headline:

    Often cloudy with patchy rain at times.

    Today:

    A cloudy, damp and mild start to Thursday. Cloud breaking in the east with some brighter spells, but drizzle persisting over the hills in the west. Staying windy and humid. Maximum temperature 20 °C.

    Tonight:

    Remaining cloudy in the west overnight with drizzle persisting over hills. Drier in the east with a few clear spells. Windy in the northwest, but winds easing elsewhere by dawn. Minimum temperature 12 °C.

    Friday:

    Cloudy in the west with rain and drizzle, turning heavy at times over hills and mountains. Some brighter and drier intervals in the east. Winds continue to ease. Feeling humid. Maximum temperature 20 °C.

    Outlook for Saturday to Monday:

    Remaining changeable with showers or longer spells of rain on Saturday. Turning colder through Sunday as showery rain clears southeast, leaving sunny spells and showers on Monday.

    Updated:

    UK long range weather forecast

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