Lake Vyrnwy SAWS (Powys) weather

Forecast days

Sunny intervals changing to sleet showers by late morning.
Sunrise iconSunrise:
Sunset iconSunset:
L UV
L Pollution
No pollen data.

    7 day forecast for Lake Vyrnwy SAWS

    Today (13 March 2026)
    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 Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sleet shower day Light snow shower day Sleet shower day Sleet shower Sleet shower Sleet shower Heavy snow Sleet shower night Sleet shower night Sleet shower night Sleet shower night Light shower night Partly cloudy night
    Chance of precipitation
    10%
    10%
    20%
    20%
    40%
    70%
    70%
    70%
    70%
    80%
    90%
    90%
    90%
    80%
    70%
    70%
    60%
    50%
    Temperature
    Feels like temperature (°C)
    -3°
    -3°
    -2°
    -2°
    -2°
    -1°
    -1°
    -1°
    -1°
    -1°
    -1°
    -2°
    -2°
    -2°
    -2°
    -2°
    -2°
    -2°
    Wind direction and speed
    WSW
    17
    WSW
    17
    WSW
    19
    WSW
    20
    WSW
    20
    WSW
    19
    WSW
    18
    WSW
    17
    WSW
    16
    WSW
    14
    WSW
    13
    W
    11
    W
    9
    W
    8
    W
    7
    W
    7
    W
    7
    W
    7
    Wind gust (mph)
    37
    37
    39
    41
    40
    40
    39
    37
    34
    31
    29
    24
    21
    18
    16
    16
    15
    15
    Visibility
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    G
    M
    M
    M
    M
    M
    M
    G
    G
    Humidity
    68%
    71%
    67%
    66%
    66%
    66%
    65%
    63%
    66%
    68%
    70%
    86%
    88%
    92%
    92%
    92%
    92%
    92%
    UV 1 1 1 1 2 2 2 2 1 1 1 1 1 - - - - -
    Saturday (14 March 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 Partly cloudy night Partly cloudy night Partly cloudy night Clear night Clear night Clear night Clear night 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 Light shower night Light shower night Light shower night Light shower night Cloudy
    Chance of precipitation
    20%
    10%
    10%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    20%
    30%
    40%
    50%
    60%
    60%
    60%
    50%
    Temperature (°C)
    Feels like temperature (°C)
    -2°
    -2°
    -3°
    -3°
    -3°
    -3°
    -3°
    -3°
    -1°
    Wind direction and speed (mph)
    W
    7
    W
    7
    W
    7
    W
    7
    W
    7
    W
    7
    W
    7
    WSW
    6
    W
    6
    W
    7
    W
    8
    W
    9
    W
    9
    W
    10
    W
    10
    WSW
    10
    WSW
    10
    WSW
    9
    WSW
    8
    SW
    6
    SW
    6
    SW
    6
    SW
    6
    SW
    6
    Wind gust (mph)
    14
    15
    14
    14
    14
    14
    14
    12
    15
    17
    19
    21
    22
    23
    23
    23
    22
    20
    16
    15
    15
    15
    15
    13
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    VG
    VG
    E
    E
    E
    E
    E
    VG
    E
    E
    VG
    VG
    VG
    VG
    VG
    G
    Humidity
    92%
    91%
    91%
    92%
    92%
    91%
    92%
    93%
    87%
    78%
    70%
    62%
    56%
    54%
    56%
    57%
    64%
    68%
    78%
    85%
    88%
    91%
    92%
    93%
    UV - - - - - - 1 1 1 1 2 2 2 2 1 1 1 1 1 - - - - -
    Sunday (15 March 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 rain Light rain Light rain Light rain Light rain Light rain Light shower day Light shower day Light shower day Light shower day Light shower day Light shower night Light shower night Light shower night Light shower night Sleet shower night Sleet shower night
    Chance of precipitation
    40%
    30%
    30%
    20%
    30%
    40%
    60%
    60%
    70%
    90%
    90%
    80%
    70%
    60%
    70%
    80%
    90%
    80%
    60%
    70%
    70%
    80%
    80%
    70%
    Temperature (°C)
    Feels like temperature (°C)
    -1°
    -2°
    Wind direction and speed (mph)
    SW
    5
    SW
    5
    SW
    5
    SW
    5
    SSW
    6
    SSW
    6
    SSW
    8
    SW
    10
    SW
    10
    SW
    10
    SW
    11
    SW
    12
    WSW
    14
    WSW
    17
    WSW
    17
    WSW
    17
    WSW
    16
    W
    15
    W
    14
    W
    13
    W
    13
    W
    13
    W
    13
    W
    14
    Wind gust (mph)
    13
    14
    14
    15
    17
    20
    22
    25
    28
    30
    31
    33
    33
    35
    35
    36
    35
    32
    31
    29
    32
    34
    34
    32
    Visibility (description)
    G
    M
    M
    M
    G
    G
    G
    M
    M
    M
    M
    P
    M
    M
    G
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    G
    Humidity
    94%
    96%
    95%
    96%
    95%
    95%
    93%
    91%
    92%
    94%
    96%
    96%
    93%
    90%
    84%
    83%
    80%
    80%
    83%
    82%
    79%
    81%
    82%
    81%
    UV - - - - - - 1 1 1 1 1 1 1 1 1 1 1 1 1 - - - - -
    Monday (16 March 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 Sleet shower night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Cloudy Cloudy Light rain Light rain Light rain Light rain Heavy rain Heavy rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain
    Chance of precipitation
    60%
    40%
    20%
    20%
    20%
    30%
    20%
    30%
    20%
    20%
    40%
    60%
    60%
    80%
    80%
    90%
    90%
    90%
    80%
    80%
    80%
    70%
    70%
    70%
    Temperature (°C)
    Feels like temperature (°C)
    -2°
    -2°
    -2°
    -2°
    -2°
    -2°
    -2°
    -1°
    -1°
    Wind direction and speed (mph)
    W
    14
    W
    13
    W
    13
    W
    12
    W
    11
    W
    11
    WSW
    10
    WSW
    10
    WSW
    11
    WSW
    12
    WSW
    13
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    14
    SW
    13
    SW
    13
    SW
    13
    SW
    12
    SW
    12
    SW
    13
    SW
    13
    SW
    13
    Wind gust (mph)
    31
    29
    27
    26
    25
    25
    24
    25
    27
    29
    30
    30
    30
    29
    29
    28
    28
    28
    28
    29
    29
    30
    30
    31
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    M
    M
    M
    P
    P
    P
    P
    P
    Humidity
    81%
    81%
    81%
    81%
    83%
    84%
    85%
    84%
    83%
    77%
    76%
    75%
    78%
    82%
    84%
    86%
    89%
    93%
    95%
    96%
    97%
    97%
    97%
    97%
    UV - - - - - - 1 1 1 1 1 1 1 2 1 1 1 1 1 - - - - -
    Tuesday (17 March 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 Light rain Light rain Light rain Light rain Light rain Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Cloudy
    Chance of precipitation
    70%
    70%
    70%
    60%
    50%
    50%
    50%
    50%
    50%
    50%
    40%
    40%
    30%
    30%
    30%
    30%
    30%
    30%
    30%
    30%
    30%
    20%
    20%
    20%
    Temperature (°C)
    10°
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SW
    13
    SW
    14
    SW
    14
    SW
    14
    SW
    15
    SW
    15
    SSW
    14
    SSW
    15
    SSW
    15
    SSW
    16
    SSW
    16
    SSW
    17
    SSW
    17
    SSW
    18
    SSW
    18
    SSW
    17
    SSW
    16
    SSW
    14
    SSW
    13
    SSW
    12
    SSW
    11
    SSW
    10
    S
    9
    S
    8
    Wind gust (mph)
    30
    30
    30
    31
    32
    32
    33
    33
    34
    35
    36
    35
    34
    33
    33
    30
    27
    24
    22
    21
    18
    17
    16
    14
    Visibility (description)
    M
    M
    P
    M
    M
    M
    M
    M
    M
    M
    G
    G
    G
    G
    G
    G
    G
    G
    VG
    VG
    G
    G
    G
    G
    Humidity
    96%
    96%
    96%
    96%
    94%
    93%
    92%
    91%
    91%
    89%
    86%
    85%
    84%
    81%
    78%
    80%
    82%
    84%
    87%
    89%
    91%
    92%
    92%
    93%
    UV - - - - - - 1 1 1 1 1 1 2 2 1 1 1 1 1 - - - - -
    Wednesday (18 March 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Partly cloudy night Mist Sunny intervals Sunny intervals Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    11°
    13°
    10°
    Feels like temperature (°C)
    10°
    11°
    Wind direction and speed (mph)
    S
    8
    SE
    4
    NNE
    4
    ESE
    4
    ESE
    7
    ESE
    8
    E
    6
    NE
    5
    Wind gust (mph)
    14
    7
    8
    14
    16
    16
    10
    9
    Visibility (description)
    G
    M
    VP
    M
    VG
    G
    G
    M
    Humidity
    94%
    97%
    99%
    90%
    74%
    68%
    83%
    92%
    UV - - 1 1 2 1 1 -
    Thursday (19 March 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Clear night Fog Sunny day Sunny day Sunny day Sunny day Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    10%
    <5%
    10%
    10%
    10%
    Temperature (°C)
    11°
    12°
    Feels like temperature (°C)
    10°
    Wind direction and speed (mph)
    NE
    4
    NNE
    4
    NNE
    4
    NE
    4
    E
    9
    E
    10
    ENE
    7
    ENE
    6
    Wind gust (mph)
    8
    6
    9
    17
    20
    19
    13
    13
    Visibility (description)
    P
    P
    VP
    M
    G
    VG
    G
    M
    Humidity
    95%
    97%
    98%
    82%
    64%
    60%
    78%
    89%
    UV - - 1 1 2 1 1 -

    UK video forecast

    Lake Vyrnwy SAWS 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:

    Feeling colder with blustery showers, wintry over the hills.

    Today:

    It will be a somewhat brighter but much colder day across the country than on Thursday, with a mixture of cloudy periods and blustery showers. Showers turning wintry over higher ground and merging to give longer spells of rain later. Maximum temperature 8 °C.

    Tonight:

    Heavy showers continuing to sink southwards this evening, merging to give longer spells of rain and falling as snow over the hills. Becoming dry and clearer overnight, with a frost. Minimum temperature 0 °C.

    Saturday:

    A drier day on Saturday compared to Friday, with sunnier spells than of late after a chilly start. A few showers still possible later in the day. Generally light winds. Maximum temperature 10 °C.

    Outlook for Sunday to Tuesday:

    Changeable with patchy rain followed by showers on Sunday. Drier on Monday with further patchy rain arriving later and into Tuesday. Gradually turning somewhat milder, though breezy at times.

    Updated:

    UK long range weather forecast

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