Slieve Donard (County Down) weather

Forecast days

Heavy rain.
Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution
No pollen data.
Next low tide: tomorrow for
Newcastle (Beach)
Mourne Mountains (Mountain region)

    7 day forecast for Slieve Donard

    Today (16 September 2025)
    Time
    21:00
    22:00
    23:00
    Weather symbols Cloudy Overcast Heavy rain
    Chance of precipitation
    30%
    30%
    90%
    Temperature
    7°
    7°
    7°
    Feels like temperature (°C)
    2°
    2°
    2°
    Wind direction and speed
    SSW
    18
    SSW
    21
    SSW
    26
    Wind gust (mph)
    23
    28
    34
    Visibility
    VG
    G
    M
    Humidity
    90%
    93%
    95%
    UV - - -
    Wednesday (17 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 Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light shower night Fog 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 Clear night Partly cloudy night Partly cloudy night
    Chance of precipitation
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    90%
    50%
    20%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    7°
    6°
    7°
    7°
    8°
    9°
    9°
    9°
    10°
    10°
    10°
    10°
    10°
    11°
    11°
    11°
    11°
    11°
    10°
    9°
    8°
    8°
    8°
    7°
    Feels like temperature (°C)
    1°
    0°
    0°
    1°
    1°
    3°
    4°
    5°
    5°
    5°
    5°
    5°
    5°
    6°
    6°
    6°
    6°
    6°
    5°
    4°
    2°
    2°
    2°
    1°
    Wind direction and speed (mph)
    S
    31
    SSE
    38
    SSE
    46
    SE
    53
    SSE
    56
    SSE
    50
    S
    37
    SSW
    32
    SW
    32
    SW
    32
    WSW
    34
    WSW
    35
    WSW
    36
    WSW
    36
    WSW
    38
    SW
    38
    SW
    37
    SW
    36
    SW
    34
    SW
    33
    SW
    36
    SW
    36
    SW
    37
    SW
    38
    Wind gust (mph)
    42
    51
    58
    61
    61
    55
    41
    36
    36
    38
    39
    39
    40
    42
    42
    42
    40
    39
    38
    40
    40
    40
    41
    41
    Visibility (description)
    P
    VP
    VP
    VP
    VP
    VP
    VP
    VP
    VP
    VG
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    98%
    99%
    99%
    100%
    99%
    100%
    100%
    100%
    98%
    96%
    91%
    85%
    83%
    76%
    74%
    72%
    71%
    73%
    74%
    75%
    79%
    83%
    85%
    85%
    UV - - - - - - - 1 1 1 2 3 3 3 3 3 2 1 1 1 - - - -
    Thursday (18 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 Cloudy Cloudy Cloudy Light rain Light rain Light rain Light rain Light shower day Fog Fog Mist Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Cloudy Cloudy Mist Mist
    Chance of precipitation
    10%
    10%
    20%
    30%
    30%
    40%
    50%
    50%
    60%
    60%
    50%
    50%
    50%
    30%
    40%
    40%
    40%
    40%
    30%
    30%
    30%
    40%
    40%
    30%
    Temperature (°C)
    7°
    7°
    7°
    7°
    7°
    7°
    7°
    7°
    8°
    9°
    10°
    10°
    10°
    11°
    12°
    12°
    12°
    12°
    12°
    11°
    11°
    10°
    10°
    10°
    Feels like temperature (°C)
    1°
    1°
    1°
    1°
    1°
    1°
    2°
    2°
    3°
    4°
    5°
    5°
    5°
    6°
    7°
    7°
    7°
    7°
    7°
    7°
    6°
    6°
    6°
    6°
    Wind direction and speed (mph)
    SW
    37
    SW
    34
    SW
    31
    SW
    29
    SW
    29
    SW
    29
    SW
    31
    SW
    31
    SW
    28
    SW
    28
    SW
    30
    SW
    32
    SW
    35
    SW
    36
    SW
    35
    SW
    35
    SW
    34
    SW
    32
    SW
    30
    SW
    27
    SW
    29
    SW
    30
    SW
    31
    SW
    32
    Wind gust (mph)
    40
    37
    34
    32
    32
    34
    34
    34
    31
    33
    35
    38
    39
    39
    39
    38
    37
    35
    33
    32
    33
    35
    36
    36
    Visibility (description)
    E
    E
    E
    E
    E
    VG
    VG
    VG
    VP
    VP
    VP
    VP
    VP
    VP
    VP
    P
    E
    VG
    VG
    VG
    VG
    VG
    VG
    P
    Humidity
    86%
    87%
    90%
    93%
    94%
    95%
    95%
    96%
    98%
    98%
    99%
    98%
    98%
    97%
    96%
    93%
    92%
    92%
    93%
    95%
    96%
    97%
    96%
    97%
    UV - - - - - - - 1 1 1 1 2 3 3 3 2 2 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 Mist Fog Fog Mist 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 Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    30%
    40%
    40%
    30%
    20%
    10%
    20%
    10%
    10%
    10%
    10%
    10%
    20%
    20%
    20%
    20%
    20%
    10%
    10%
    10%
    10%
    10%
    20%
    20%
    Temperature (°C)
    10°
    10°
    10°
    10°
    10°
    9°
    9°
    9°
    8°
    9°
    9°
    9°
    9°
    10°
    10°
    10°
    10°
    9°
    9°
    8°
    8°
    8°
    8°
    7°
    Feels like temperature (°C)
    5°
    5°
    5°
    5°
    5°
    4°
    4°
    4°
    4°
    4°
    5°
    5°
    5°
    6°
    6°
    6°
    6°
    5°
    5°
    4°
    3°
    3°
    3°
    3°
    Wind direction and speed (mph)
    SW
    33
    SW
    32
    SW
    33
    SW
    34
    SW
    35
    SW
    35
    SW
    34
    SW
    32
    WSW
    27
    WSW
    26
    WSW
    25
    WSW
    25
    WSW
    25
    WSW
    25
    WSW
    25
    WSW
    25
    SW
    24
    WSW
    22
    WSW
    21
    SW
    20
    WSW
    20
    WSW
    20
    WSW
    20
    WSW
    20
    Wind gust (mph)
    36
    36
    37
    38
    38
    38
    37
    35
    30
    29
    28
    28
    28
    28
    28
    27
    27
    25
    23
    22
    22
    22
    22
    22
    Visibility (description)
    P
    P
    VP
    VP
    P
    VG
    VG
    VG
    VG
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    98%
    98%
    98%
    98%
    98%
    96%
    96%
    96%
    95%
    93%
    89%
    85%
    80%
    76%
    76%
    74%
    75%
    74%
    77%
    80%
    83%
    84%
    86%
    86%
    UV - - - - - - - 1 1 1 2 2 3 3 3 2 2 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 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 Light shower day Light shower day Light shower day Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    20%
    20%
    20%
    20%
    20%
    20%
    30%
    30%
    20%
    30%
    20%
    30%
    40%
    50%
    60%
    50%
    40%
    30%
    20%
    10%
    20%
    20%
    20%
    20%
    Temperature (°C)
    7°
    7°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    7°
    7°
    8°
    8°
    8°
    8°
    7°
    7°
    7°
    6°
    5°
    5°
    5°
    5°
    Feels like temperature (°C)
    2°
    2°
    2°
    1°
    1°
    1°
    1°
    1°
    1°
    1°
    2°
    2°
    3°
    3°
    3°
    2°
    2°
    1°
    1°
    0°
    -2°
    -2°
    -2°
    -2°
    Wind direction and speed (mph)
    WSW
    20
    WSW
    20
    WSW
    20
    W
    20
    W
    20
    W
    21
    W
    21
    WNW
    21
    WNW
    20
    WNW
    22
    NW
    24
    NW
    25
    NW
    26
    NNW
    27
    NNW
    29
    NNW
    31
    NNW
    31
    NNW
    32
    NNW
    32
    NNW
    31
    NNW
    35
    NNW
    34
    NNW
    34
    N
    34
    Wind gust (mph)
    22
    22
    22
    22
    23
    23
    23
    23
    24
    26
    27
    28
    30
    31
    34
    35
    35
    35
    35
    38
    38
    38
    38
    38
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    88%
    89%
    90%
    91%
    92%
    93%
    95%
    95%
    94%
    93%
    91%
    88%
    83%
    77%
    79%
    81%
    81%
    78%
    80%
    83%
    83%
    84%
    85%
    85%
    UV - - - - - - - 1 1 1 2 3 3 3 2 2 2 1 1 1 - - - -
    Sunday (21 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 Sunny intervals Sunny intervals Cloudy Cloudy Overcast
    Chance of precipitation
    20%
    20%
    20%
    10%
    10%
    10%
    10%
    10%
    <5%
    Temperature (°C)
    4°
    4°
    3°
    3°
    6°
    7°
    7°
    5°
    3°
    Feels like temperature (°C)
    -3°
    -3°
    -4°
    -4°
    0°
    2°
    1°
    -1°
    -4°
    Wind direction and speed (mph)
    N
    34
    N
    32
    N
    32
    N
    29
    N
    29
    N
    32
    N
    35
    N
    27
    NW
    32
    Wind gust (mph)
    37
    36
    35
    32
    36
    40
    39
    37
    35
    Visibility (description)
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    85%
    85%
    83%
    82%
    69%
    57%
    57%
    68%
    77%
    UV - - - 1 2 3 2 1 -
    Monday (22 September 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Overcast Overcast Overcast Overcast Cloudy Cloudy Partly cloudy night Cloudy
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    2°
    2°
    2°
    6°
    8°
    8°
    5°
    3°
    Feels like temperature (°C)
    -4°
    -3°
    -4°
    1°
    4°
    2°
    0°
    -3°
    Wind direction and speed (mph)
    NNW
    24
    NNW
    15
    NNW
    15
    N
    19
    NE
    23
    ESE
    32
    E
    24
    ENE
    19
    Wind gust (mph)
    26
    17
    21
    26
    35
    35
    26
    21
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    Humidity
    79%
    82%
    85%
    70%
    58%
    59%
    76%
    86%
    UV - - 1 2 3 1 1 -

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    Forecast for 21:00, Tue
    Updated 19:00 (UTC+1) on Tue 16 Sep 2025

    Northern Ireland weather forecast

    Headline:

    Cloudy at first on Wednesday. Some rain, then drier, brighter.

    This Evening and Tonight:

    Dry with clear periods at first this evening. Cloud spreads north by late evening with outbreaks of rain, some heavy, soon following. Drier weather will follow to Fermanagh and south Tyrone by morning. Minimum temperature 9 °C.

    Wednesday:

    Cloudy start with rain in north at first, then a dry day with increasing sunny spells and becoming milder. A breezy day. Maximum temperature 18 °C.

    Outlook for Thursday to Saturday:

    Outbreaks of rain on Thursday morning clearing in the afternoon. Scattered showers following on Friday. These showers become isolated on Saturday.

    Updated:

    UK long range weather forecast

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